Opened 9 years ago
Closed 9 years ago
#26346 closed Bug (duplicate)
Error in makemigrations while changing DateTimeField default value from timezone aware datetime to naive datetime.now()
Reported by: | shahzebiam | Owned by: | nobody |
---|---|---|---|
Component: | Migrations | Version: | 1.8 |
Severity: | Normal | Keywords: | migrations, datetimefield migration, makemigrations, default date |
Cc: | Triage Stage: | Unreviewed | |
Has patch: | no | Needs documentation: | no |
Needs tests: | no | Patch needs improvement: | no |
Easy pickings: | no | UI/UX: | no |
Description
I have a DateTimeField in a model in models.py which i have given a default value of django.utils.timezone.now(). When i changed the default value to datetime.datetime.now() and ran the makemigrations command, it gave me an error in autodetector.py
Traceback (most recent call last): File "manage.py", line 10, in <module> execute_from_command_line(sys.argv) File "C:\Python27\lib\site-packages\django\core\management\__init__.py", line 354, in execute_from_command_line utility.execute() File "C:\Python27\lib\site-packages\django\core\management\__init__.py", line 346, in execute self.fetch_command(subcommand).run_from_argv(self.argv) File "C:\Python27\lib\site-packages\django\core\management\base.py", line 394, in run_from_argv self.execute(*args, **cmd_options) File "C:\Python27\lib\site-packages\django\core\management\base.py", line 445, in execute output = self.handle(*args, **options) File "C:\Python27\lib\site-packages\django\core\management\commands\makemigrations.py", line 125, in handle migration_name=self.migration_name, File "C:\Python27\lib\site-packages\django\db\migrations\autodetector.py", line 43, in changes changes = self._detect_changes(convert_apps, graph) File "C:\Python27\lib\site-packages\django\db\migrations\autodetector.py", line 186, in _detect_changes self.generate_altered_fields() File "C:\Python27\lib\site-packages\django\db\migrations\autodetector.py", line 850, in generate_altered_fields if old_field_dec != new_field_dec: TypeError: can't compare offset-naive and offset-aware datetimes
as far as i know it is trying to compare a timezone aware date with a simple datetime which will not be possible for datetime objects.
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Duplicate of #24822