Replaced importing the "typing" module as "t" with importing the individual names in the "typing" module. Since Python 3.9 introduced type hinting generics in standard collections, we do not have as many names to import now. This is also to be consistent with the practices of most major and standard packages and examples.

src/accounting/journal_entry/forms/journal_entry.py

@@ -18,8 +18,8 @@
 
 """
 import datetime as dt
-import typing as t
 from abc import ABC, abstractmethod
+from typing import TypeVar, Generic, Type
 
 import sqlalchemy as sa
 from flask_babel import LazyString
@@ -29,13 +29,13 @@ from wtforms import DateField, FieldList, FormField, TextAreaField, \
 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.journal_entry.utils.account_option import AccountOption
-from accounting.journal_entry.utils.original_line_items import \
-    get_selectable_original_line_items
-from accounting.journal_entry.utils.description_editor import DescriptionEditor
 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
@@ -123,7 +123,7 @@ class JournalEntryForm(FlaskForm):
         super().__init__(*args, **kwargs)
         self.is_modified: bool = False
         """Whether the journal entry is modified during populate_obj()."""
-        self.collector: t.Type[LineItemCollector] = LineItemCollector
+        self.collector: Type[LineItemCollector] = LineItemCollector
         """The line item collector.  The default is the base abstract
         collector only to provide the correct type.  The subclass forms should
         provide their own collectors."""
@@ -155,7 +155,7 @@ class JournalEntryForm(FlaskForm):
         self.__set_date(obj, self.date.data)
         obj.note = self.note.data
 
-        collector_cls: t.Type[LineItemCollector] = self.collector
+        collector_cls: Type[LineItemCollector] = self.collector
         collector: collector_cls = collector_cls(self, obj)
         collector.collect()
 
@@ -309,11 +309,11 @@ class JournalEntryForm(FlaskForm):
         return db.session.scalar(select)
 
 
-T = t.TypeVar("T", bound=JournalEntryForm)
+T = TypeVar("T", bound=JournalEntryForm)
 """A journal entry form variant."""
 
 
-class LineItemCollector(t.Generic[T], ABC):
+class LineItemCollector(Generic[T], ABC):
     """The line item collector."""
 
     def __init__(self, form: T, obj: JournalEntry):