[magic-removal] AttributeError when editing User in admin

[James Bennett]

When editing a user in the admin, as of rev 2475, we get an AttributeError:

{{{ Traceback (most recent call last):
File "/Users/james/dev/magic-removal/magic-removal/django/core/handlers/base.py" in get_response

73. response = callback(request, *callback_args, callback_kwargs)

File "/Users/james/dev/magic-removal/magic-removal/django/contrib/admin/views/decorators.py" in _checklogin

54. return view_func(request, *args, kwargs)

File "/Users/james/dev/magic-removal/magic-removal/django/contrib/admin/views/main.py" in change_stage

352. new_data = manipulator.flatten_data()

File "/Users/james/dev/magic-removal/magic-removal/django/db/models/manipulators.py" in flatten_data

247. new_data.update(f.flatten_data(fol, obj))

File "/Users/james/dev/magic-removal/magic-removal/django/db/models/fields/init.py" in flatten_data

413. return {date_field: (val is not None and val.strftime("%Y-%m-%d") or ),

AttributeError at /admin/auth/user/1/
'str' object has no attribute 'strftime'} }}}

[James Bennett]

OK, so atm Trac's wikiformatting isn't doing code, and it interpreted the line numbers as beginning ordered lists. Line numbers, in order, should be: 73, 54, 352, 247, 413.

[jkocherhans]

This should be the correct traceback:

Traceback (most recent call last):
File "/Users/james/dev/magic-removal/magic-removal/django/core/handlers/base.py" in get_response
  73. response = callback(request, *callback_args, **callback_kwargs)
File "/Users/james/dev/magic-removal/magic-removal/django/contrib/admin/views/decorators.py" in _checklogin
  54. return view_func(request, *args, **kwargs)
File "/Users/james/dev/magic-removal/magic-removal/django/contrib/admin/views/main.py" in change_stage
  352. new_data = manipulator.flatten_data()
File "/Users/james/dev/magic-removal/magic-removal/django/db/models/manipulators.py" in flatten_data
  247. new_data.update(f.flatten_data(fol, obj))
File "/Users/james/dev/magic-removal/magic-removal/django/db/models/fields/__init__.py" in flatten_data
  413. return {date_field: (val is not None and val.strftime("%Y-%m-%d") or ''),

  AttributeError at /admin/auth/user/1/
  'str' object has no attribute 'strftime'} 

[matt]

For those of you playing along at home, this seems to not be an issue for me on OSX10.4/Python 2.4.1/sqlite 3.1.3/pysqlite 2.0.7. The only difference between our two setups is that James is using Python 2.3.5.

Very weird.

[James Bennett]

We've found a clue: on Matt's setup (Python 2.4.1), nothing goes wrong. On my setup (Python 2.3.5), the typecast functions in django.db.backends.util aren't coming into play; specifically, typecast_timestamp is never getting called on this datetime string.

[Malcolm Tredinnick <malcolm@…>]

So something is not quite right in this report. In revision 2475, the last line of the traceback would have occurred on line 422, not 413. So is you entire codebase up to date here? I am asking because I cannot repeat this problem at all with Python 2.3.4, SQlite 3.2.7 and pysqlite 2.0.4 (on linux-x86).

Does any editing of the User cause this problem, or is there a specific change that needs to be made to trigger it?

[Adrian Holovaty]

Please reopen if this is still a problem.