trivial: more pylint fixes in datetime widgets

chrono/manager/widgets.py

@@ -11,7 +11,7 @@ import json
 import re
 import uuid
 
-from django.forms import forms, widgets
+from django.forms import widgets
 from django.forms.widgets import DateTimeInput, DateInput, TimeInput
 from django.utils.formats import get_format, get_language
 from django.utils.safestring import mark_safe
@@ -211,10 +211,10 @@ class PickerWidgetMixin(object):
 
             # If we're not doing localisation, get the Javascript date format provided by the user,
             # with a default, and convert it to a Python data format for later string parsing
-            format = self.options['format']
+            date_format = self.options['format']
             self.format = DATE_FORMAT_TO_PYTHON_REGEX.sub(
                 lambda x: DATE_FORMAT_JS_PY_MAPPING[x.group()],
-                format
+                date_format
                 )
 
         super(PickerWidgetMixin, self).__init__(attrs, format=self.format)