Revised the code according to the PyCharm and PEP8 inspection.

mia_core/templatefilters.py

@@ -14,7 +14,6 @@
 #  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 #  See the License for the specific language governing permissions and
 #  limitations under the License.
-import locale
 from datetime import date
 
 from django import template