diff --git a/src/accounting/__init__.py b/src/accounting/__init__.py
index 6e60cc2..47f7b04 100644
--- a/src/accounting/__init__.py
+++ b/src/accounting/__init__.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/1/25
 
-#  Copyright (c) 2023-2024 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -22,7 +22,7 @@ from pathlib import Path
 from flask import Flask, Blueprint
 from flask_sqlalchemy import SQLAlchemy
 
-from accounting.utils.user import UserUtilityInterface
+from .utils.user import UserUtilityInterface
 
 VERSION: str = "1.6.1"
 """The package version."""
diff --git a/src/accounting/account/commands.py b/src/accounting/account/commands.py
index df751d0..e5c51c6 100644
--- a/src/accounting/account/commands.py
+++ b/src/accounting/account/commands.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/1/30
 
-#  Copyright (c) 2023-2024 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -23,9 +23,9 @@ from typing import Any
 import click
 import sqlalchemy as sa
 
-from accounting import db
-from accounting.models import BaseAccount, Account, AccountL10n
-from accounting.utils.user import get_user_pk
+from .. import db
+from ..models import BaseAccount, Account, AccountL10n
+from ..utils.user import get_user_pk
 
 type AccountData = tuple[int, str, int, str, str, str, bool]
 """The format of the account data, as a list of (ID, base account code, number,
diff --git a/src/accounting/account/converters.py b/src/accounting/account/converters.py
index faa3c3c..f225a2d 100644
--- a/src/accounting/account/converters.py
+++ b/src/accounting/account/converters.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/1/31
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -20,7 +20,7 @@
 from flask import abort
 from werkzeug.routing import BaseConverter
 
-from accounting.models import Account
+from ..models import Account
 
 
 class AccountConverter(BaseConverter):
diff --git a/src/accounting/account/forms.py b/src/accounting/account/forms.py
index 9772bb8..7a31933 100644
--- a/src/accounting/account/forms.py
+++ b/src/accounting/account/forms.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/2/1
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -23,12 +23,12 @@ from flask_wtf import FlaskForm
 from wtforms import StringField, BooleanField
 from wtforms.validators import DataRequired, ValidationError
 
-from accounting import db
-from accounting.locale import lazy_gettext
-from accounting.models import BaseAccount, Account
-from accounting.utils.random_id import new_id
-from accounting.utils.strip_text import strip_text
-from accounting.utils.user import get_current_user_pk
+from .. import db
+from ..locale import lazy_gettext
+from ..models import BaseAccount, Account
+from ..utils.random_id import new_id
+from ..utils.strip_text import strip_text
+from ..utils.user import get_current_user_pk
 
 
 class BaseAccountExists:
diff --git a/src/accounting/account/queries.py b/src/accounting/account/queries.py
index d6d6373..f7bbecd 100644
--- a/src/accounting/account/queries.py
+++ b/src/accounting/account/queries.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/1/30
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -20,9 +20,9 @@
 import sqlalchemy as sa
 from flask import request
 
-from accounting.locale import gettext
-from accounting.models import Account, AccountL10n
-from accounting.utils.query import parse_query_keywords
+from ..locale import gettext
+from ..models import Account, AccountL10n
+from ..utils.query import parse_query_keywords
 
 
 def get_account_query() -> list[Account]:
diff --git a/src/accounting/account/views.py b/src/accounting/account/views.py
index b9a8cf5..0a56d5e 100644
--- a/src/accounting/account/views.py
+++ b/src/accounting/account/views.py
@@ -24,17 +24,17 @@ from flask import Blueprint, render_template, session, redirect, flash, \
     url_for, request, Response
 from werkzeug.datastructures import ImmutableMultiDict
 
-from accounting import db
-from accounting.locale import lazy_gettext
-from accounting.models import Account, BaseAccount
-from accounting.utils.cast import s
-from accounting.utils.flash_errors import flash_form_errors
-from accounting.utils.next_uri import inherit_next, or_next
-from accounting.utils.pagination import Pagination
-from accounting.utils.permission import can_view, has_permission, can_edit
-from accounting.utils.user import get_current_user_pk
 from .forms import AccountForm, sort_accounts_in, AccountReorderForm
 from .queries import get_account_query
+from .. import db
+from ..locale import lazy_gettext
+from ..models import Account, BaseAccount
+from ..utils.cast import s
+from ..utils.flash_errors import flash_form_errors
+from ..utils.next_uri import inherit_next, or_next
+from ..utils.pagination import Pagination
+from ..utils.permission import can_view, has_permission, can_edit
+from ..utils.user import get_current_user_pk
 
 bp: Blueprint = Blueprint("account", __name__)
 """The view blueprint for the account management."""
diff --git a/src/accounting/base_account/commands.py b/src/accounting/base_account/commands.py
index 234e7a2..2a4c6fb 100644
--- a/src/accounting/base_account/commands.py
+++ b/src/accounting/base_account/commands.py
@@ -21,10 +21,9 @@ import csv
 
 import sqlalchemy as sa
 
-from accounting import data_dir
-from accounting import db
-from accounting.models import BaseAccount, BaseAccountL10n
-from accounting.utils.title_case import title_case
+from .. import db, data_dir
+from ..models import BaseAccount, BaseAccountL10n
+from ..utils.title_case import title_case
 
 
 def init_base_accounts_command() -> None:
diff --git a/src/accounting/base_account/converters.py b/src/accounting/base_account/converters.py
index d5955ae..7627e84 100644
--- a/src/accounting/base_account/converters.py
+++ b/src/accounting/base_account/converters.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/2/1
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -20,8 +20,8 @@
 from flask import abort
 from werkzeug.routing import BaseConverter
 
-from accounting import db
-from accounting.models import BaseAccount
+from .. import db
+from ..models import BaseAccount
 
 
 class BaseAccountConverter(BaseConverter):
diff --git a/src/accounting/base_account/queries.py b/src/accounting/base_account/queries.py
index f8091ee..37d7682 100644
--- a/src/accounting/base_account/queries.py
+++ b/src/accounting/base_account/queries.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/1/26
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -20,8 +20,8 @@
 import sqlalchemy as sa
 from flask import request
 
-from accounting.models import BaseAccount, BaseAccountL10n
-from accounting.utils.query import parse_query_keywords
+from ..models import BaseAccount, BaseAccountL10n
+from ..utils.query import parse_query_keywords
 
 
 def get_base_account_query() -> list[BaseAccount]:
diff --git a/src/accounting/base_account/views.py b/src/accounting/base_account/views.py
index a177368..22614e5 100644
--- a/src/accounting/base_account/views.py
+++ b/src/accounting/base_account/views.py
@@ -19,10 +19,10 @@
 """
 from flask import Blueprint, render_template
 
-from accounting.models import BaseAccount
-from accounting.utils.pagination import Pagination
-from accounting.utils.permission import has_permission, can_view
 from .queries import get_base_account_query
+from ..models import BaseAccount
+from ..utils.pagination import Pagination
+from ..utils.permission import has_permission, can_view
 
 bp: Blueprint = Blueprint("base-account", __name__)
 """The view blueprint for the base account management."""
diff --git a/src/accounting/commands.py b/src/accounting/commands.py
index 4d321dd..d1c6ba4 100644
--- a/src/accounting/commands.py
+++ b/src/accounting/commands.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/4/10
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -20,16 +20,16 @@
 import os
 
 import click
+import sqlalchemy as sa
 from flask.cli import with_appcontext
 
-from accounting import db
-from accounting.account import init_accounts_command
-from accounting.base_account import init_base_accounts_command
-from accounting.currency import init_currencies_command
-from accounting.models import BaseAccount, Account
-from accounting.utils.title_case import title_case
-from accounting.utils.user import has_user, get_user_pk
-import sqlalchemy as sa
+from . import db
+from .account import init_accounts_command
+from .base_account import init_base_accounts_command
+from .currency import init_currencies_command
+from .models import BaseAccount, Account
+from .utils.title_case import title_case
+from .utils.user import has_user, get_user_pk
 
 
 def __validate_username(ctx: click.core.Context, param: click.core.Option,
diff --git a/src/accounting/currency/commands.py b/src/accounting/currency/commands.py
index 1ff9a85..5d79c85 100644
--- a/src/accounting/currency/commands.py
+++ b/src/accounting/currency/commands.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/2/6
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -22,9 +22,9 @@ from typing import Any
 
 import sqlalchemy as sa
 
-from accounting import db, data_dir
-from accounting.models import Currency, CurrencyL10n
-from accounting.utils.user import get_user_pk
+from .. import db, data_dir
+from ..models import Currency, CurrencyL10n
+from ..utils.user import get_user_pk
 
 
 def init_currencies_command(username: str) -> None:
diff --git a/src/accounting/currency/converters.py b/src/accounting/currency/converters.py
index 0610b96..30edcc2 100644
--- a/src/accounting/currency/converters.py
+++ b/src/accounting/currency/converters.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/2/6
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -20,8 +20,8 @@
 from flask import abort
 from werkzeug.routing import BaseConverter
 
-from accounting import db
-from accounting.models import Currency
+from .. import db
+from ..models import Currency
 
 
 class CurrencyConverter(BaseConverter):
diff --git a/src/accounting/currency/forms.py b/src/accounting/currency/forms.py
index febae7b..ca58227 100644
--- a/src/accounting/currency/forms.py
+++ b/src/accounting/currency/forms.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/2/6
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -21,11 +21,11 @@ from flask_wtf import FlaskForm
 from wtforms import StringField, ValidationError
 from wtforms.validators import DataRequired, Regexp, NoneOf
 
-from accounting import db
-from accounting.locale import lazy_gettext
-from accounting.models import Currency
-from accounting.utils.strip_text import strip_text
-from accounting.utils.user import get_current_user_pk
+from .. import db
+from ..locale import lazy_gettext
+from ..models import Currency
+from ..utils.strip_text import strip_text
+from ..utils.user import get_current_user_pk
 
 
 class CodeUnique:
diff --git a/src/accounting/currency/queries.py b/src/accounting/currency/queries.py
index 29137c4..4648f06 100644
--- a/src/accounting/currency/queries.py
+++ b/src/accounting/currency/queries.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/2/6
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -20,8 +20,8 @@
 import sqlalchemy as sa
 from flask import request
 
-from accounting.models import Currency, CurrencyL10n
-from accounting.utils.query import parse_query_keywords
+from ..models import Currency, CurrencyL10n
+from ..utils.query import parse_query_keywords
 
 
 def get_currency_query() -> list[Currency]:
diff --git a/src/accounting/currency/views.py b/src/accounting/currency/views.py
index bf956e3..e142d43 100644
--- a/src/accounting/currency/views.py
+++ b/src/accounting/currency/views.py
@@ -24,17 +24,17 @@ from flask import Blueprint, render_template, redirect, session, request, \
     flash, url_for, Response
 from werkzeug.datastructures import ImmutableMultiDict
 
-from accounting import db
-from accounting.locale import lazy_gettext
-from accounting.models import Currency
-from accounting.utils.cast import s
-from accounting.utils.flash_errors import flash_form_errors
-from accounting.utils.next_uri import inherit_next, or_next
-from accounting.utils.pagination import Pagination
-from accounting.utils.permission import has_permission, can_view, can_edit
-from accounting.utils.user import get_current_user_pk
 from .forms import CurrencyForm
 from .queries import get_currency_query
+from .. import db
+from ..locale import lazy_gettext
+from ..models import Currency
+from ..utils.cast import s
+from ..utils.flash_errors import flash_form_errors
+from ..utils.next_uri import inherit_next, or_next
+from ..utils.pagination import Pagination
+from ..utils.permission import has_permission, can_view, can_edit
+from ..utils.user import get_current_user_pk
 
 bp: Blueprint = Blueprint("currency", __name__)
 """The view blueprint for the currency management."""
diff --git a/src/accounting/forms.py b/src/accounting/forms.py
index 0b01aa6..515d4b2 100644
--- a/src/accounting/forms.py
+++ b/src/accounting/forms.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/3/22
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -24,10 +24,9 @@ from flask_wtf import FlaskForm
 from wtforms import StringField, ValidationError
 from wtforms.validators import DataRequired
 
-from accounting import db
-from accounting.locale import lazy_gettext
-from accounting.models import Currency, Account
-
+from . import db
+from .locale import lazy_gettext
+from .models import Currency, Account
 
 ACCOUNT_REQUIRED: DataRequired = DataRequired(
     lazy_gettext("Please select the account."))
diff --git a/src/accounting/journal_entry/converters.py b/src/accounting/journal_entry/converters.py
index 33b942f..05bf379 100644
--- a/src/accounting/journal_entry/converters.py
+++ b/src/accounting/journal_entry/converters.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/2/19
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -22,9 +22,9 @@ import datetime as dt
 from flask import abort
 from werkzeug.routing import BaseConverter
 
-from accounting import db
-from accounting.models import JournalEntry
-from accounting.utils.journal_entry_types import JournalEntryType
+from .. import db
+from ..models import JournalEntry
+from ..utils.journal_entry_types import JournalEntryType
 
 
 class JournalEntryConverter(BaseConverter):
diff --git a/src/accounting/journal_entry/forms/currency.py b/src/accounting/journal_entry/forms/currency.py
index 67f44e7..8bd7cc8 100644
--- a/src/accounting/journal_entry/forms/currency.py
+++ b/src/accounting/journal_entry/forms/currency.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/3/10
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -26,13 +26,13 @@ from wtforms import StringField, ValidationError, FieldList, IntegerField, \
     BooleanField, FormField
 from wtforms.validators import DataRequired
 
-from accounting import db
-from accounting.forms import CurrencyExists
-from accounting.locale import lazy_gettext
-from accounting.models import JournalEntryLineItem
-from accounting.utils.offset_alias import offset_alias
-from accounting.utils.strip_text import strip_text
 from .line_item import LineItemForm, CreditLineItemForm, DebitLineItemForm
+from ... import db
+from ...forms import CurrencyExists
+from ...locale import lazy_gettext
+from ...models import JournalEntryLineItem
+from ...utils.offset_alias import offset_alias
+from ...utils.strip_text import strip_text
 
 CURRENCY_REQUIRED: DataRequired = DataRequired(
     lazy_gettext("Please select the currency."))
diff --git a/src/accounting/journal_entry/forms/journal_entry.py b/src/accounting/journal_entry/forms/journal_entry.py
index 126034f..839d801 100644
--- a/src/accounting/journal_entry/forms/journal_entry.py
+++ b/src/accounting/journal_entry/forms/journal_entry.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/2/18
 
-#  Copyright (c) 2023-2024 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -28,21 +28,20 @@ from wtforms import DateField, FieldList, FormField, TextAreaField, \
     BooleanField
 from wtforms.validators import DataRequired, ValidationError
 
-from accounting import db
-from accounting.journal_entry.utils.account_option import AccountOption
-from accounting.journal_entry.utils.description_editor import DescriptionEditor
-from accounting.journal_entry.utils.original_line_items import \
-    get_selectable_original_line_items
-from accounting.locale import lazy_gettext
-from accounting.models import JournalEntry, Account, JournalEntryLineItem, \
-    JournalEntryCurrency
-from accounting.utils.random_id import new_id
-from accounting.utils.strip_text import strip_multiline_text
-from accounting.utils.user import get_current_user_pk
 from .currency import CurrencyForm, CashReceiptCurrencyForm, \
     CashDisbursementCurrencyForm, TransferCurrencyForm
 from .line_item import LineItemForm, DebitLineItemForm, CreditLineItemForm
 from .reorder import sort_journal_entries_in
+from ..utils.account_option import AccountOption
+from ..utils.description_editor import DescriptionEditor
+from ..utils.original_line_items import get_selectable_original_line_items
+from ... import db
+from ...locale import lazy_gettext
+from ...models import JournalEntry, Account, JournalEntryLineItem, \
+    JournalEntryCurrency
+from ...utils.random_id import new_id
+from ...utils.strip_text import strip_multiline_text
+from ...utils.user import get_current_user_pk
 
 DATE_REQUIRED: DataRequired = DataRequired(
     lazy_gettext("Please fill in the date."))
diff --git a/src/accounting/journal_entry/forms/line_item.py b/src/accounting/journal_entry/forms/line_item.py
index 7b30c6c..27e8c72 100644
--- a/src/accounting/journal_entry/forms/line_item.py
+++ b/src/accounting/journal_entry/forms/line_item.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/3/10
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -27,15 +27,15 @@ from sqlalchemy.orm import selectinload
 from wtforms import StringField, ValidationError, DecimalField, IntegerField
 from wtforms.validators import Optional
 
-from accounting import db
-from accounting.forms import ACCOUNT_REQUIRED, AccountExists, IsDebitAccount, \
+from ... import db
+from ...forms import ACCOUNT_REQUIRED, AccountExists, IsDebitAccount, \
     IsCreditAccount
-from accounting.locale import lazy_gettext
-from accounting.models import Account, JournalEntry, JournalEntryLineItem
-from accounting.template_filters import format_amount
-from accounting.utils.random_id import new_id
-from accounting.utils.strip_text import strip_text
-from accounting.utils.user import get_current_user_pk
+from ...locale import lazy_gettext
+from ...models import Account, JournalEntry, JournalEntryLineItem
+from ...template_filters import format_amount
+from ...utils.random_id import new_id
+from ...utils.strip_text import strip_text
+from ...utils.user import get_current_user_pk
 
 
 class OriginalLineItemExists:
diff --git a/src/accounting/journal_entry/forms/reorder.py b/src/accounting/journal_entry/forms/reorder.py
index 1284fbc..2d073d7 100644
--- a/src/accounting/journal_entry/forms/reorder.py
+++ b/src/accounting/journal_entry/forms/reorder.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/3/10
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -22,8 +22,8 @@ import datetime as dt
 import sqlalchemy as sa
 from flask import request
 
-from accounting import db
-from accounting.models import JournalEntry
+from ... import db
+from ...models import JournalEntry
 
 
 def sort_journal_entries_in(date: dt.date, exclude: int | None = None) -> None:
diff --git a/src/accounting/journal_entry/utils/account_option.py b/src/accounting/journal_entry/utils/account_option.py
index 3a4bc53..ba3979f 100644
--- a/src/accounting/journal_entry/utils/account_option.py
+++ b/src/accounting/journal_entry/utils/account_option.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/3/10
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -17,7 +17,7 @@
 """The account option for the journal entry management.
 
 """
-from accounting.models import Account
+from ...models import Account
 
 
 class AccountOption:
diff --git a/src/accounting/journal_entry/utils/description_editor.py b/src/accounting/journal_entry/utils/description_editor.py
index 269469e..24d75be 100644
--- a/src/accounting/journal_entry/utils/description_editor.py
+++ b/src/accounting/journal_entry/utils/description_editor.py
@@ -22,9 +22,9 @@ from typing import Literal
 
 import sqlalchemy as sa
 
-from accounting import db
-from accounting.models import Account, JournalEntryLineItem
-from accounting.utils.options import options, Recurring
+from ... import db
+from ...models import Account, JournalEntryLineItem
+from ...utils.options import options, Recurring
 
 
 class DescriptionAccount:
diff --git a/src/accounting/journal_entry/utils/operators.py b/src/accounting/journal_entry/utils/operators.py
index 79455b5..57d438a 100644
--- a/src/accounting/journal_entry/utils/operators.py
+++ b/src/accounting/journal_entry/utils/operators.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/2/19
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -23,13 +23,12 @@ from typing import Type
 from flask import render_template, request, abort
 from flask_wtf import FlaskForm
 
-from accounting.journal_entry.forms import JournalEntryForm, \
-    CashReceiptJournalEntryForm, CashDisbursementJournalEntryForm, \
-    TransferJournalEntryForm
-from accounting.journal_entry.forms.line_item import LineItemForm
-from accounting.models import JournalEntry
-from accounting.template_globals import default_currency_code
-from accounting.utils.journal_entry_types import JournalEntryType
+from ..forms import JournalEntryForm, CashReceiptJournalEntryForm, \
+    CashDisbursementJournalEntryForm, TransferJournalEntryForm
+from ..forms.line_item import LineItemForm
+from ...models import JournalEntry
+from ...template_globals import default_currency_code
+from ...utils.journal_entry_types import JournalEntryType
 
 
 class JournalEntryOperator(ABC):
diff --git a/src/accounting/journal_entry/utils/original_line_items.py b/src/accounting/journal_entry/utils/original_line_items.py
index 2321ef3..7d06a95 100644
--- a/src/accounting/journal_entry/utils/original_line_items.py
+++ b/src/accounting/journal_entry/utils/original_line_items.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/3/10
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -22,9 +22,9 @@ from decimal import Decimal
 import sqlalchemy as sa
 from sqlalchemy.orm import selectinload
 
-from accounting import db
-from accounting.models import Account, JournalEntry, JournalEntryLineItem
-from accounting.utils.offset_alias import offset_alias
+from ... import db
+from ...models import Account, JournalEntry, JournalEntryLineItem
+from ...utils.offset_alias import offset_alias
 
 
 def get_selectable_original_line_items(
diff --git a/src/accounting/journal_entry/views.py b/src/accounting/journal_entry/views.py
index 7560fa0..227be5d 100644
--- a/src/accounting/journal_entry/views.py
+++ b/src/accounting/journal_entry/views.py
@@ -25,21 +25,21 @@ from flask import Blueprint, render_template, session, redirect, request, \
     flash, url_for, Response
 from werkzeug.datastructures import ImmutableMultiDict
 
-from accounting import db
-from accounting.locale import lazy_gettext
-from accounting.models import JournalEntry
-from accounting.utils.cast import s
-from accounting.utils.flash_errors import flash_form_errors
-from accounting.utils.journal_entry_types import JournalEntryType
-from accounting.utils.next_uri import inherit_next, or_next
-from accounting.utils.permission import has_permission, can_view, can_edit
-from accounting.utils.timezone import get_tz_today
-from accounting.utils.user import get_current_user_pk
 from .forms import sort_journal_entries_in, JournalEntryReorderForm
 from .template_filters import with_type, to_transfer, format_amount_input, \
     text2html
 from .utils.operators import JournalEntryOperator, JOURNAL_ENTRY_TYPE_TO_OP, \
     get_journal_entry_op
+from .. import db
+from ..locale import lazy_gettext
+from ..models import JournalEntry
+from ..utils.cast import s
+from ..utils.flash_errors import flash_form_errors
+from ..utils.journal_entry_types import JournalEntryType
+from ..utils.next_uri import inherit_next, or_next
+from ..utils.permission import has_permission, can_view, can_edit
+from ..utils.timezone import get_tz_today
+from ..utils.user import get_current_user_pk
 
 bp: Blueprint = Blueprint("journal-entry", __name__)
 """The view blueprint for the journal entry management."""
diff --git a/src/accounting/models.py b/src/accounting/models.py
index 1e5a849..a46022d 100644
--- a/src/accounting/models.py
+++ b/src/accounting/models.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/1/25
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -30,9 +30,9 @@ from flask_babel import get_locale, get_babel
 from sqlalchemy import text
 from sqlalchemy.orm import Mapped, mapped_column
 
-from accounting import db
-from accounting.locale import gettext
-from accounting.utils.user import user_cls, user_pk_column
+from . import db
+from .locale import gettext
+from .utils.user import user_cls, user_pk_column
 
 
 class BaseAccount(db.Model):
@@ -462,7 +462,7 @@ class Currency(db.Model):
 
         :return: True if the currency can be deleted, or False otherwise.
         """
-        from accounting.template_globals import default_currency_code
+        from .template_globals import default_currency_code
         if self.code == default_currency_code():
             return False
         return len(self.line_items) == 0
@@ -699,7 +699,7 @@ class JournalEntryLineItem(db.Model):
         :return: The string representation of the line item.
         """
         if not hasattr(self, "__str"):
-            from accounting.template_filters import format_date, format_amount
+            from .template_filters import format_date, format_amount
             setattr(self, "__str",
                     gettext("%(date)s %(description)s %(amount)s",
                             date=format_date(self.journal_entry.date),
diff --git a/src/accounting/option/forms.py b/src/accounting/option/forms.py
index e588ba1..6be591a 100644
--- a/src/accounting/option/forms.py
+++ b/src/accounting/option/forms.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/3/22
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -23,13 +23,13 @@ from flask_wtf import FlaskForm
 from wtforms import StringField, FieldList, FormField, IntegerField
 from wtforms.validators import DataRequired, ValidationError
 
-from accounting.forms import ACCOUNT_REQUIRED, CurrencyExists, AccountExists, \
+from ..forms import ACCOUNT_REQUIRED, CurrencyExists, AccountExists, \
     IsDebitAccount, IsCreditAccount
-from accounting.locale import lazy_gettext
-from accounting.models import Account
-from accounting.utils.current_account import CurrentAccount
-from accounting.utils.options import Options
-from accounting.utils.strip_text import strip_text
+from ..locale import lazy_gettext
+from ..models import Account
+from ..utils.current_account import CurrentAccount
+from ..utils.options import Options
+from ..utils.strip_text import strip_text
 
 
 class CurrentAccountExists:
diff --git a/src/accounting/option/views.py b/src/accounting/option/views.py
index 57b6c5c..32b5833 100644
--- a/src/accounting/option/views.py
+++ b/src/accounting/option/views.py
@@ -23,13 +23,13 @@ from flask import Blueprint, render_template, redirect, session, request, \
     flash, url_for, Response
 from werkzeug.datastructures import ImmutableMultiDict
 
-from accounting.locale import lazy_gettext
-from accounting.utils.cast import s
-from accounting.utils.flash_errors import flash_form_errors
-from accounting.utils.next_uri import inherit_next
-from accounting.utils.options import options
-from accounting.utils.permission import has_permission, can_admin
 from .forms import OptionForm
+from ..locale import lazy_gettext
+from ..utils.cast import s
+from ..utils.flash_errors import flash_form_errors
+from ..utils.next_uri import inherit_next
+from ..utils.options import options
+from ..utils.permission import has_permission, can_admin
 
 bp: Blueprint = Blueprint("option", __name__)
 """The view blueprint for the currency management."""
diff --git a/src/accounting/report/converters.py b/src/accounting/report/converters.py
index b8ebb86..9cb6632 100644
--- a/src/accounting/report/converters.py
+++ b/src/accounting/report/converters.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/3/3
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -22,9 +22,9 @@ import re
 from flask import abort
 from werkzeug.routing import BaseConverter
 
-from accounting.models import Account
-from accounting.utils.current_account import CurrentAccount
 from .period import Period, get_period
+from ..models import Account
+from ..utils.current_account import CurrentAccount
 
 
 class PeriodConverter(BaseConverter):
diff --git a/src/accounting/report/period/chooser.py b/src/accounting/report/period/chooser.py
index ae300df..46e5531 100644
--- a/src/accounting/report/period/chooser.py
+++ b/src/accounting/report/period/chooser.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/3/4
 
-#  Copyright (c) 2023-2024 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -23,11 +23,11 @@ This file is largely taken from the NanoParma ERP project, first written in
 import datetime as dt
 from collections.abc import Callable
 
-from accounting.models import JournalEntry
-from accounting.utils.timezone import get_tz_today
 from .period import Period
 from .shortcuts import ThisMonth, LastMonth, SinceLastMonth, ThisYear, \
     LastYear, Today, Yesterday, AllTime, TemplatePeriod, YearPeriod
+from ...models import JournalEntry
+from ...utils.timezone import get_tz_today
 
 
 class PeriodChooser:
diff --git a/src/accounting/report/period/description.py b/src/accounting/report/period/description.py
index 2fae1e8..8dd2172 100644
--- a/src/accounting/report/period/description.py
+++ b/src/accounting/report/period/description.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/3/4
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -19,7 +19,7 @@
 """
 import datetime as dt
 
-from accounting.locale import gettext
+from ...locale import gettext
 
 
 def get_desc(start: dt.date | None, end: dt.date | None) -> str:
diff --git a/src/accounting/report/period/shortcuts.py b/src/accounting/report/period/shortcuts.py
index 827cead..06769e0 100644
--- a/src/accounting/report/period/shortcuts.py
+++ b/src/accounting/report/period/shortcuts.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/3/4
 
-#  Copyright (c) 2023-2024 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -19,10 +19,10 @@
 """
 import datetime as dt
 
-from accounting.locale import gettext
-from accounting.utils.timezone import get_tz_today
 from .month_end import month_end
 from .period import Period
+from ...locale import gettext
+from ...utils.timezone import get_tz_today
 
 
 class ThisMonth(Period):
diff --git a/src/accounting/report/reports/balance_sheet.py b/src/accounting/report/reports/balance_sheet.py
index 39ca2a8..cd79ce5 100644
--- a/src/accounting/report/reports/balance_sheet.py
+++ b/src/accounting/report/reports/balance_sheet.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/3/7
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -22,20 +22,18 @@ from decimal import Decimal
 import sqlalchemy as sa
 from flask import render_template, Response
 
-from accounting import db
-from accounting.locale import gettext
-from accounting.models import Currency, BaseAccount, Account, JournalEntry, \
+from ..period import Period, PeriodChooser
+from ..utils.base_page_params import BasePageParams
+from ..utils.base_report import BaseReport
+from ..utils.csv_export import BaseCSVRow, csv_download, period_spec
+from ..utils.option_link import OptionLink
+from ..utils.report_chooser import ReportChooser
+from ..utils.report_type import ReportType
+from ..utils.urls import ledger_url, balance_sheet_url, income_statement_url
+from ... import db
+from ...locale import gettext
+from ...models import Currency, BaseAccount, Account, JournalEntry, \
     JournalEntryLineItem
-from accounting.report.period import Period, PeriodChooser
-from accounting.report.utils.base_page_params import BasePageParams
-from accounting.report.utils.base_report import BaseReport
-from accounting.report.utils.csv_export import BaseCSVRow, csv_download, \
-    period_spec
-from accounting.report.utils.option_link import OptionLink
-from accounting.report.utils.report_chooser import ReportChooser
-from accounting.report.utils.report_type import ReportType
-from accounting.report.utils.urls import ledger_url, balance_sheet_url, \
-    income_statement_url
 
 
 class ReportAccount:
diff --git a/src/accounting/report/reports/income_expenses.py b/src/accounting/report/reports/income_expenses.py
index 6412103..348c01e 100644
--- a/src/accounting/report/reports/income_expenses.py
+++ b/src/accounting/report/reports/income_expenses.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/3/7
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -24,21 +24,19 @@ import sqlalchemy as sa
 from flask import url_for, render_template, Response
 from sqlalchemy.orm import selectinload
 
-from accounting import db
-from accounting.locale import gettext
-from accounting.models import Currency, Account, JournalEntry, \
-    JournalEntryLineItem
-from accounting.report.period import Period, PeriodChooser
-from accounting.report.utils.base_page_params import BasePageParams
-from accounting.report.utils.base_report import BaseReport
-from accounting.report.utils.csv_export import BaseCSVRow, csv_download, \
-    period_spec
-from accounting.report.utils.option_link import OptionLink
-from accounting.report.utils.report_chooser import ReportChooser
-from accounting.report.utils.report_type import ReportType
-from accounting.report.utils.urls import income_expenses_url
-from accounting.utils.current_account import CurrentAccount
-from accounting.utils.pagination import Pagination
+from ..period import Period, PeriodChooser
+from ..utils.base_page_params import BasePageParams
+from ..utils.base_report import BaseReport
+from ..utils.csv_export import BaseCSVRow, csv_download, period_spec
+from ..utils.option_link import OptionLink
+from ..utils.report_chooser import ReportChooser
+from ..utils.report_type import ReportType
+from ..utils.urls import income_expenses_url
+from ... import db
+from ...locale import gettext
+from ...models import Currency, Account, JournalEntry, JournalEntryLineItem
+from ...utils.current_account import CurrentAccount
+from ...utils.pagination import Pagination
 
 
 class ReportLineItem:
diff --git a/src/accounting/report/reports/income_statement.py b/src/accounting/report/reports/income_statement.py
index 8af89d7..ad1b6b1 100644
--- a/src/accounting/report/reports/income_statement.py
+++ b/src/accounting/report/reports/income_statement.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/3/7
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -22,19 +22,18 @@ from decimal import Decimal
 import sqlalchemy as sa
 from flask import render_template, Response
 
-from accounting import db
-from accounting.locale import gettext
-from accounting.models import Currency, BaseAccount, Account, JournalEntry, \
+from ..period import Period, PeriodChooser
+from ..utils.base_page_params import BasePageParams
+from ..utils.base_report import BaseReport
+from ..utils.csv_export import BaseCSVRow, csv_download, period_spec
+from ..utils.option_link import OptionLink
+from ..utils.report_chooser import ReportChooser
+from ..utils.report_type import ReportType
+from ..utils.urls import ledger_url, income_statement_url
+from ... import db
+from ...locale import gettext
+from ...models import Currency, BaseAccount, Account, JournalEntry, \
     JournalEntryLineItem
-from accounting.report.period import Period, PeriodChooser
-from accounting.report.utils.base_page_params import BasePageParams
-from accounting.report.utils.base_report import BaseReport
-from accounting.report.utils.csv_export import BaseCSVRow, csv_download, \
-    period_spec
-from accounting.report.utils.option_link import OptionLink
-from accounting.report.utils.report_chooser import ReportChooser
-from accounting.report.utils.report_type import ReportType
-from accounting.report.utils.urls import ledger_url, income_statement_url
 
 
 class ReportAccount:
diff --git a/src/accounting/report/reports/journal.py b/src/accounting/report/reports/journal.py
index 470b2d3..baba68b 100644
--- a/src/accounting/report/reports/journal.py
+++ b/src/accounting/report/reports/journal.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/3/7
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -24,18 +24,16 @@ import sqlalchemy as sa
 from flask import render_template, Response
 from sqlalchemy.orm import selectinload
 
-from accounting.locale import gettext
-from accounting.models import Currency, Account, JournalEntry, \
-    JournalEntryLineItem
-from accounting.report.period import Period, PeriodChooser
-from accounting.report.utils.base_page_params import BasePageParams
-from accounting.report.utils.base_report import BaseReport
-from accounting.report.utils.csv_export import BaseCSVRow, csv_download, \
-    period_spec
-from accounting.report.utils.report_chooser import ReportChooser
-from accounting.report.utils.report_type import ReportType
-from accounting.report.utils.urls import journal_url
-from accounting.utils.pagination import Pagination
+from ..period import Period, PeriodChooser
+from ..utils.base_page_params import BasePageParams
+from ..utils.base_report import BaseReport
+from ..utils.csv_export import BaseCSVRow, csv_download, period_spec
+from ..utils.report_chooser import ReportChooser
+from ..utils.report_type import ReportType
+from ..utils.urls import journal_url
+from ...locale import gettext
+from ...models import Currency, Account, JournalEntry, JournalEntryLineItem
+from ...utils.pagination import Pagination
 
 
 class ReportLineItem:
diff --git a/src/accounting/report/reports/ledger.py b/src/accounting/report/reports/ledger.py
index 1175145..cd3c8c9 100644
--- a/src/accounting/report/reports/ledger.py
+++ b/src/accounting/report/reports/ledger.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/3/7
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -24,20 +24,18 @@ import sqlalchemy as sa
 from flask import url_for, render_template, Response
 from sqlalchemy.orm import selectinload
 
-from accounting import db
-from accounting.locale import gettext
-from accounting.models import Currency, Account, JournalEntry, \
-    JournalEntryLineItem
-from accounting.report.period import Period, PeriodChooser
-from accounting.report.utils.base_page_params import BasePageParams
-from accounting.report.utils.base_report import BaseReport
-from accounting.report.utils.csv_export import BaseCSVRow, csv_download, \
-    period_spec
-from accounting.report.utils.option_link import OptionLink
-from accounting.report.utils.report_chooser import ReportChooser
-from accounting.report.utils.report_type import ReportType
-from accounting.report.utils.urls import ledger_url
-from accounting.utils.pagination import Pagination
+from ..period import Period, PeriodChooser
+from ..utils.base_page_params import BasePageParams
+from ..utils.base_report import BaseReport
+from ..utils.csv_export import BaseCSVRow, csv_download, period_spec
+from ..utils.option_link import OptionLink
+from ..utils.report_chooser import ReportChooser
+from ..utils.report_type import ReportType
+from ..utils.urls import ledger_url
+from ... import db
+from ...locale import gettext
+from ...models import Currency, Account, JournalEntry, JournalEntryLineItem
+from ...utils.pagination import Pagination
 
 
 class ReportLineItem:
diff --git a/src/accounting/report/reports/search.py b/src/accounting/report/reports/search.py
index e326b44..e11860f 100644
--- a/src/accounting/report/reports/search.py
+++ b/src/accounting/report/reports/search.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/3/8
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -24,17 +24,17 @@ import sqlalchemy as sa
 from flask import Response, render_template, request
 from sqlalchemy.orm import selectinload
 
-from accounting.locale import gettext
-from accounting.models import Currency, CurrencyL10n, Account, AccountL10n, \
-    JournalEntry, JournalEntryLineItem
-from accounting.report.utils.base_page_params import BasePageParams
-from accounting.report.utils.base_report import BaseReport
-from accounting.report.utils.csv_export import csv_download
-from accounting.report.utils.report_chooser import ReportChooser
-from accounting.report.utils.report_type import ReportType
-from accounting.utils.pagination import Pagination
-from accounting.utils.query import parse_query_keywords
 from .journal import get_csv_rows
+from ..utils.base_page_params import BasePageParams
+from ..utils.base_report import BaseReport
+from ..utils.csv_export import csv_download
+from ..utils.report_chooser import ReportChooser
+from ..utils.report_type import ReportType
+from ...locale import gettext
+from ...models import Currency, CurrencyL10n, Account, AccountL10n, \
+    JournalEntry, JournalEntryLineItem
+from ...utils.pagination import Pagination
+from ...utils.query import parse_query_keywords
 
 
 class LineItemCollector:
diff --git a/src/accounting/report/reports/trial_balance.py b/src/accounting/report/reports/trial_balance.py
index 82cd7b1..64c2aff 100644
--- a/src/accounting/report/reports/trial_balance.py
+++ b/src/accounting/report/reports/trial_balance.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/3/7
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -22,19 +22,17 @@ from decimal import Decimal
 import sqlalchemy as sa
 from flask import Response, render_template
 
-from accounting import db
-from accounting.locale import gettext
-from accounting.models import Currency, Account, JournalEntry, \
-    JournalEntryLineItem
-from accounting.report.period import Period, PeriodChooser
-from accounting.report.utils.base_page_params import BasePageParams
-from accounting.report.utils.base_report import BaseReport
-from accounting.report.utils.csv_export import BaseCSVRow, csv_download, \
-    period_spec
-from accounting.report.utils.option_link import OptionLink
-from accounting.report.utils.report_chooser import ReportChooser
-from accounting.report.utils.report_type import ReportType
-from accounting.report.utils.urls import ledger_url, trial_balance_url
+from ..period import Period, PeriodChooser
+from ..utils.base_page_params import BasePageParams
+from ..utils.base_report import BaseReport
+from ..utils.csv_export import BaseCSVRow, csv_download, period_spec
+from ..utils.option_link import OptionLink
+from ..utils.report_chooser import ReportChooser
+from ..utils.report_type import ReportType
+from ..utils.urls import ledger_url, trial_balance_url
+from ... import db
+from ...locale import gettext
+from ...models import Currency, Account, JournalEntry, JournalEntryLineItem
 
 
 class ReportAccount:
diff --git a/src/accounting/report/reports/unapplied.py b/src/accounting/report/reports/unapplied.py
index 815c936..1f59513 100644
--- a/src/accounting/report/reports/unapplied.py
+++ b/src/accounting/report/reports/unapplied.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/4/7
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -23,19 +23,17 @@ from decimal import Decimal
 from flask import render_template, Response
 from sqlalchemy.orm import selectinload
 
-from accounting.locale import gettext
-from accounting.models import Currency, Account, JournalEntry, \
-    JournalEntryLineItem
-from accounting.report.utils.base_page_params import BasePageParams
-from accounting.report.utils.base_report import BaseReport
-from accounting.report.utils.csv_export import BaseCSVRow, csv_download
-from accounting.report.utils.option_link import OptionLink
-from accounting.report.utils.report_chooser import ReportChooser
-from accounting.report.utils.report_type import ReportType
-from accounting.report.utils.unapplied import get_accounts_with_unapplied, \
-    get_net_balances
-from accounting.report.utils.urls import unapplied_url
-from accounting.utils.pagination import Pagination
+from ..utils.base_page_params import BasePageParams
+from ..utils.base_report import BaseReport
+from ..utils.csv_export import BaseCSVRow, csv_download
+from ..utils.option_link import OptionLink
+from ..utils.report_chooser import ReportChooser
+from ..utils.report_type import ReportType
+from ..utils.unapplied import get_accounts_with_unapplied, get_net_balances
+from ..utils.urls import unapplied_url
+from ...locale import gettext
+from ...models import Currency, Account, JournalEntry, JournalEntryLineItem
+from ...utils.pagination import Pagination
 
 
 class CSVRow(BaseCSVRow):
diff --git a/src/accounting/report/reports/unapplied_accounts.py b/src/accounting/report/reports/unapplied_accounts.py
index 99a22c4..cb596e7 100644
--- a/src/accounting/report/reports/unapplied_accounts.py
+++ b/src/accounting/report/reports/unapplied_accounts.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/4/7
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -22,16 +22,16 @@ from decimal import Decimal
 
 from flask import render_template, Response
 
-from accounting.locale import gettext
-from accounting.models import Currency, Account
-from accounting.report.utils.base_page_params import BasePageParams
-from accounting.report.utils.base_report import BaseReport
-from accounting.report.utils.csv_export import BaseCSVRow, csv_download
-from accounting.report.utils.option_link import OptionLink
-from accounting.report.utils.report_chooser import ReportChooser
-from accounting.report.utils.report_type import ReportType
-from accounting.report.utils.unapplied import get_accounts_with_unapplied
-from accounting.report.utils.urls import unapplied_url
+from ..utils.base_page_params import BasePageParams
+from ..utils.base_report import BaseReport
+from ..utils.csv_export import BaseCSVRow, csv_download
+from ..utils.option_link import OptionLink
+from ..utils.report_chooser import ReportChooser
+from ..utils.report_type import ReportType
+from ..utils.unapplied import get_accounts_with_unapplied
+from ..utils.urls import unapplied_url
+from ...locale import gettext
+from ...models import Currency, Account
 
 
 class CSVRow(BaseCSVRow):
diff --git a/src/accounting/report/reports/unmatched.py b/src/accounting/report/reports/unmatched.py
index d4fac42..dd9fbbf 100644
--- a/src/accounting/report/reports/unmatched.py
+++ b/src/accounting/report/reports/unmatched.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/4/17
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -23,18 +23,18 @@ from decimal import Decimal
 from flask import render_template, Response
 from flask_babel import LazyString
 
-from accounting.locale import gettext
-from accounting.models import Currency, Account, JournalEntryLineItem
-from accounting.report.utils.base_page_params import BasePageParams
-from accounting.report.utils.base_report import BaseReport
-from accounting.report.utils.csv_export import BaseCSVRow, csv_download
-from accounting.report.utils.offset_matcher import OffsetMatcher, OffsetPair
-from accounting.report.utils.option_link import OptionLink
-from accounting.report.utils.report_chooser import ReportChooser
-from accounting.report.utils.report_type import ReportType
-from accounting.report.utils.unmatched import get_accounts_with_unmatched
-from accounting.report.utils.urls import unmatched_url
-from accounting.utils.pagination import Pagination
+from ..utils.base_page_params import BasePageParams
+from ..utils.base_report import BaseReport
+from ..utils.csv_export import BaseCSVRow, csv_download
+from ..utils.offset_matcher import OffsetMatcher, OffsetPair
+from ..utils.option_link import OptionLink
+from ..utils.report_chooser import ReportChooser
+from ..utils.report_type import ReportType
+from ..utils.unmatched import get_accounts_with_unmatched
+from ..utils.urls import unmatched_url
+from ...locale import gettext
+from ...models import Currency, Account, JournalEntryLineItem
+from ...utils.pagination import Pagination
 
 
 class CSVRow(BaseCSVRow):
diff --git a/src/accounting/report/reports/unmatched_accounts.py b/src/accounting/report/reports/unmatched_accounts.py
index 4a3d6cb..8dabfb4 100644
--- a/src/accounting/report/reports/unmatched_accounts.py
+++ b/src/accounting/report/reports/unmatched_accounts.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/4/17
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -22,16 +22,16 @@ from decimal import Decimal
 
 from flask import render_template, Response
 
-from accounting.locale import gettext
-from accounting.models import Currency, Account
-from accounting.report.utils.base_page_params import BasePageParams
-from accounting.report.utils.base_report import BaseReport
-from accounting.report.utils.csv_export import BaseCSVRow, csv_download
-from accounting.report.utils.option_link import OptionLink
-from accounting.report.utils.report_chooser import ReportChooser
-from accounting.report.utils.report_type import ReportType
-from accounting.report.utils.unmatched import get_accounts_with_unmatched
-from accounting.report.utils.urls import unmatched_url
+from ..utils.base_page_params import BasePageParams
+from ..utils.base_report import BaseReport
+from ..utils.csv_export import BaseCSVRow, csv_download
+from ..utils.option_link import OptionLink
+from ..utils.report_chooser import ReportChooser
+from ..utils.report_type import ReportType
+from ..utils.unmatched import get_accounts_with_unmatched
+from ..utils.urls import unmatched_url
+from ...locale import gettext
+from ...models import Currency, Account
 
 
 class CSVRow(BaseCSVRow):
diff --git a/src/accounting/report/template_filters.py b/src/accounting/report/template_filters.py
index f607bb6..5f1faf1 100644
--- a/src/accounting/report/template_filters.py
+++ b/src/accounting/report/template_filters.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/3/7
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -19,7 +19,7 @@
 """
 from decimal import Decimal
 
-from accounting.template_filters import format_amount as core_format_amount
+from ..template_filters import format_amount as core_format_amount
 
 
 def format_amount(value: Decimal | None) -> str | None:
diff --git a/src/accounting/report/utils/base_page_params.py b/src/accounting/report/utils/base_page_params.py
index f60766b..e0b95b2 100644
--- a/src/accounting/report/utils/base_page_params.py
+++ b/src/accounting/report/utils/base_page_params.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/3/6
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -26,11 +26,11 @@ from urllib.parse import urlparse, ParseResult, parse_qsl, urlencode, \
 import sqlalchemy as sa
 from flask import request
 
-from accounting import db
-from accounting.models import Currency, JournalEntryLineItem
-from accounting.utils.journal_entry_types import JournalEntryType
 from .option_link import OptionLink
 from .report_chooser import ReportChooser
+from ... import db
+from ...models import Currency, JournalEntryLineItem
+from ...utils.journal_entry_types import JournalEntryType
 
 
 class BasePageParams(ABC):
diff --git a/src/accounting/report/utils/csv_export.py b/src/accounting/report/utils/csv_export.py
index 81df94b..c419f9d 100644
--- a/src/accounting/report/utils/csv_export.py
+++ b/src/accounting/report/utils/csv_export.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/3/7
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -26,7 +26,7 @@ from urllib.parse import quote
 
 from flask import Response
 
-from accounting.report.period import Period
+from ..period import Period
 
 
 class BaseCSVRow(ABC):
diff --git a/src/accounting/report/utils/offset_matcher.py b/src/accounting/report/utils/offset_matcher.py
index e244f85..9f21ae9 100644
--- a/src/accounting/report/utils/offset_matcher.py
+++ b/src/accounting/report/utils/offset_matcher.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/4/8
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -23,10 +23,9 @@ import sqlalchemy as sa
 from flask_babel import LazyString
 from sqlalchemy.orm import selectinload
 
-from accounting.locale import lazy_gettext
-from accounting.models import Currency, Account, JournalEntry, \
-    JournalEntryLineItem
-from accounting.report.utils.unapplied import get_net_balances
+from ..utils.unapplied import get_net_balances
+from ...locale import lazy_gettext
+from ...models import Currency, Account, JournalEntry, JournalEntryLineItem
 
 
 class OffsetPair:
diff --git a/src/accounting/report/utils/report_chooser.py b/src/accounting/report/utils/report_chooser.py
index 57da226..17c6300 100644
--- a/src/accounting/report/utils/report_chooser.py
+++ b/src/accounting/report/utils/report_chooser.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/3/4
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -25,18 +25,18 @@ from collections.abc import Iterator
 
 from flask_babel import LazyString
 
-from accounting import db
-from accounting.locale import gettext
-from accounting.models import Currency, Account
-from accounting.report.period import Period, get_period
-from accounting.template_globals import default_currency_code
-from accounting.utils.current_account import CurrentAccount
-from accounting.utils.permission import can_edit
 from .option_link import OptionLink
 from .report_type import ReportType
 from .urls import journal_url, ledger_url, income_expenses_url, \
     trial_balance_url, income_statement_url, balance_sheet_url, \
     unapplied_url, unmatched_url
+from ..period import Period, get_period
+from ... import db
+from ...locale import gettext
+from ...models import Currency, Account
+from ...template_globals import default_currency_code
+from ...utils.current_account import CurrentAccount
+from ...utils.permission import can_edit
 
 
 class ReportChooser:
diff --git a/src/accounting/report/utils/unapplied.py b/src/accounting/report/utils/unapplied.py
index a7d359a..8253d0b 100644
--- a/src/accounting/report/utils/unapplied.py
+++ b/src/accounting/report/utils/unapplied.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/4/7
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -21,10 +21,9 @@ from decimal import Decimal
 
 import sqlalchemy as sa
 
-from accounting import db
-from accounting.models import Currency, Account, JournalEntry, \
-    JournalEntryLineItem
-from accounting.utils.offset_alias import offset_alias
+from ... import db
+from ...models import Currency, Account, JournalEntry, JournalEntryLineItem
+from ...utils.offset_alias import offset_alias
 
 
 def get_accounts_with_unapplied(currency: Currency) -> list[Account]:
diff --git a/src/accounting/report/utils/unmatched.py b/src/accounting/report/utils/unmatched.py
index 619f485..21bc593 100644
--- a/src/accounting/report/utils/unmatched.py
+++ b/src/accounting/report/utils/unmatched.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/4/8
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -19,9 +19,8 @@
 """
 import sqlalchemy as sa
 
-from accounting import db
-from accounting.models import Currency, Account, JournalEntry, \
-    JournalEntryLineItem
+from ... import db
+from ...models import Currency, Account, JournalEntry, JournalEntryLineItem
 
 
 def get_accounts_with_unmatched(currency: Currency) -> list[Account]:
diff --git a/src/accounting/report/utils/urls.py b/src/accounting/report/utils/urls.py
index 7e8f9bb..ae5d147 100644
--- a/src/accounting/report/utils/urls.py
+++ b/src/accounting/report/utils/urls.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/3/9
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -19,11 +19,11 @@
 """
 from flask import url_for
 
-from accounting.models import Currency, Account
-from accounting.report.period import Period
-from accounting.template_globals import default_currency_code
-from accounting.utils.current_account import CurrentAccount
-from accounting.utils.options import options
+from ...models import Currency, Account
+from ...report.period import Period
+from ...template_globals import default_currency_code
+from ...utils.current_account import CurrentAccount
+from ...utils.options import options
 
 
 def journal_url(period: Period) \
diff --git a/src/accounting/report/views.py b/src/accounting/report/views.py
index 96a557e..137383b 100644
--- a/src/accounting/report/views.py
+++ b/src/accounting/report/views.py
@@ -19,15 +19,6 @@
 """
 from flask import Blueprint, request, Response, redirect, flash
 
-from accounting import db
-from accounting.locale import lazy_gettext
-from accounting.models import Currency, Account
-from accounting.template_globals import default_currency_code
-from accounting.utils.cast import s
-from accounting.utils.current_account import CurrentAccount
-from accounting.utils.next_uri import or_next
-from accounting.utils.options import options
-from accounting.utils.permission import has_permission, can_view, can_edit
 from .period import Period, get_period
 from .reports import Journal, Ledger, IncomeExpenses, TrialBalance, \
     IncomeStatement, BalanceSheet, Search
@@ -38,6 +29,15 @@ from .reports.unmatched_accounts import AccountsWithUnmatchedOffsets
 from .template_filters import format_amount
 from .utils.offset_matcher import OffsetMatcher
 from .utils.urls import unmatched_url
+from .. import db
+from ..locale import lazy_gettext
+from ..models import Currency, Account
+from ..template_globals import default_currency_code
+from ..utils.cast import s
+from ..utils.current_account import CurrentAccount
+from ..utils.next_uri import or_next
+from ..utils.options import options
+from ..utils.permission import has_permission, can_view, can_edit
 
 bp: Blueprint = Blueprint("accounting-report", __name__)
 """The view blueprint for the reports."""
diff --git a/src/accounting/template_filters.py b/src/accounting/template_filters.py
index 1faa62d..6ec8809 100644
--- a/src/accounting/template_filters.py
+++ b/src/accounting/template_filters.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/2/25
 
-#  Copyright (c) 2023-2024 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -23,8 +23,8 @@ from typing import Any
 
 from flask_babel import get_locale
 
-from accounting.locale import gettext
-from accounting.utils.timezone import get_tz_today
+from .locale import gettext
+from .utils.timezone import get_tz_today
 
 
 def format_amount(value: Decimal | None) -> str | None:
diff --git a/src/accounting/template_globals.py b/src/accounting/template_globals.py
index 8e7f0e1..a47ec97 100644
--- a/src/accounting/template_globals.py
+++ b/src/accounting/template_globals.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/3/3
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -17,8 +17,8 @@
 """The template globals.
 
 """
-from accounting.models import Currency
-from accounting.utils.options import options
+from .models import Currency
+from .utils.options import options
 
 
 def currency_options() -> list[Currency]:
diff --git a/src/accounting/utils/current_account.py b/src/accounting/utils/current_account.py
index 71d41f1..c63d90c 100644
--- a/src/accounting/utils/current_account.py
+++ b/src/accounting/utils/current_account.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/3/22
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -21,8 +21,8 @@ from typing import Self
 
 import sqlalchemy as sa
 
-from accounting.locale import gettext
-from accounting.models import Account
+from ..locale import gettext
+from ..models import Account
 
 
 class CurrentAccount:
diff --git a/src/accounting/utils/offset_alias.py b/src/accounting/utils/offset_alias.py
index bd32225..2cf3b86 100644
--- a/src/accounting/utils/offset_alias.py
+++ b/src/accounting/utils/offset_alias.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/3/15
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -21,7 +21,7 @@ from typing import Any
 
 import sqlalchemy as sa
 
-from accounting.models import JournalEntryLineItem
+from ..models import JournalEntryLineItem
 
 
 def offset_alias() -> sa.Alias:
diff --git a/src/accounting/utils/options.py b/src/accounting/utils/options.py
index 9e032b6..02eb11e 100644
--- a/src/accounting/utils/options.py
+++ b/src/accounting/utils/options.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/3/22
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -21,10 +21,10 @@ import json
 
 import sqlalchemy as sa
 
-from accounting import db
-from accounting.models import Option, Account, Currency
-from accounting.utils.current_account import CurrentAccount
-from accounting.utils.user import get_current_user_pk
+from .current_account import CurrentAccount
+from .user import get_current_user_pk
+from .. import db
+from ..models import Option, Account, Currency
 
 
 class RecurringItem:
diff --git a/src/accounting/utils/pagination.py b/src/accounting/utils/pagination.py
index b765527..59fd99c 100644
--- a/src/accounting/utils/pagination.py
+++ b/src/accounting/utils/pagination.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/1/25
 
-#  Copyright (c) 2023-2024 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -25,7 +25,7 @@ from urllib.parse import urlparse, parse_qsl, urlencode, urlunparse, \
 from flask import request
 from werkzeug.routing import RequestRedirect
 
-from accounting.locale import pgettext
+from ..locale import pgettext
 
 
 class Link:
diff --git a/src/accounting/utils/permission.py b/src/accounting/utils/permission.py
index d8f17e2..36f15e9 100644
--- a/src/accounting/utils/permission.py
+++ b/src/accounting/utils/permission.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/1/25
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -23,7 +23,7 @@ from collections.abc import Callable
 
 from flask import abort, Blueprint, Response
 
-from accounting.utils.user import get_current_user, UserUtilityInterface
+from .user import get_current_user, UserUtilityInterface
 
 
 def has_permission(rule: Callable[[], bool]) -> Callable:
diff --git a/src/accounting/utils/query.py b/src/accounting/utils/query.py
index c40c965..d95ef27 100644
--- a/src/accounting/utils/query.py
+++ b/src/accounting/utils/query.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/1/25
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -21,8 +21,6 @@ This module should not import any other module from the application.
 """
 import re
 
-from typing_extensions import assert_type
-
 
 def parse_query_keywords(q: str | None) -> list[str]:
     """Returns the query keywords by the query parameter.
diff --git a/src/accounting/utils/random_id.py b/src/accounting/utils/random_id.py
index 382286f..e9ec95c 100644
--- a/src/accounting/utils/random_id.py
+++ b/src/accounting/utils/random_id.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2023/1/30
 
-#  Copyright (c) 2023 imacat.
+#  Copyright (c) 2023-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -22,7 +22,7 @@ This module should not import any other module from the application.
 from secrets import randbelow
 from typing import Type
 
-from accounting import db
+from .. import db
 
 
 def new_id(cls: Type[db.Model]):
diff --git a/src/accounting/utils/timezone.py b/src/accounting/utils/timezone.py
index 8cdda19..2dcd23d 100644
--- a/src/accounting/utils/timezone.py
+++ b/src/accounting/utils/timezone.py
@@ -1,7 +1,7 @@
 # The Mia! Accounting Project.
 # Author: imacat@mail.imacat.idv.tw (imacat), 2024/6/4
 
-#  Copyright (c) 2024 imacat.
+#  Copyright (c) 2024-2026 imacat.
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
@@ -19,7 +19,6 @@
 This module should not import any other module from the application.
 
 """
-
 import datetime as dt
 
 import pytz