Migrate: TypeError: 'module' object is not callable

[Henrique Chehad]

I used makemigrations and after migrate command:

Traceback (most recent call last):
  File "manage.py", line 10, in <module>
    execute_from_command_line(sys.argv)
  File "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 353, in execute_from_command_line
    utility.execute()
  File "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 345, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/usr/local/lib/python2.7/dist-packages/django/core/management/base.py", line 348, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/usr/local/lib/python2.7/dist-packages/raven/contrib/django/management/__init__.py", line 41, in new_execute
    return original_func(self, *args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/django/core/management/base.py", line 399, in execute
    output = self.handle(*args, **options)
  File "/usr/local/lib/python2.7/dist-packages/django/core/management/commands/migrate.py", line 89, in handle
    executor = MigrationExecutor(connection, self.migration_progress_callback)
  File "/usr/local/lib/python2.7/dist-packages/django/db/migrations/executor.py", line 20, in __init__
    self.loader = MigrationLoader(self.connection)
  File "/usr/local/lib/python2.7/dist-packages/django/db/migrations/loader.py", line 49, in __init__
    self.build_graph()
  File "/usr/local/lib/python2.7/dist-packages/django/db/migrations/loader.py", line 170, in build_graph
    self.load_disk()
  File "/usr/local/lib/python2.7/dist-packages/django/db/migrations/loader.py", line 105, in load_disk
    migration_module = import_module("%s.%s" % (module_name, migration_name))
  File "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module
    __import__(name)
  File "/root/filmow/src/filmow/quizzes/migrations/0001_initial.py", line 12, in <module>
    class Migration(migrations.Migration):
  File "/root/filmow/src/filmow/quizzes/migrations/0001_initial.py", line 63, in Migration
    ('end_date', models.DateTimeField(default=datetime(2016, 7, 4, 15, 18, 59, 481979))),
TypeError: 'module' object is not callable

I tested with 1.9.5 and 1.9.3 versions

[Simon Charette]

Please provide the content of the quizzes/migrations/0001_initial.py file to help us investigate further. It looks like both the datetime.datetime class and the datetime module were imported and are conflicting somehow.

[Henrique Chehad]

The migration line with issue is it:

('end_date', models.DateTimeField(default=datetime(2016, 7, 4, 15, 18, 59, 481979))),

Import:

# -*- coding: utf-8 -*-
# Generated by Django 1.9.5 on 2016-07-04 15:19
from __future__ import unicode_literals

import datetime

I changed "import datetime" to "from datetime import datetime" and fixed the issue.

But I don't know why Django generated migration file using datetime instead datetime.datetime.

[Simon Charette]

What's you model's end_date default? I tried reproducing with datetime.datetime.now() and datetime(2016, 7, 4, 15, 18, 59, 481979) and in both cases the appropriate object (datetime.datetime) was imported correctly in the generated migration.

[Henrique Chehad]

Thank you. Located the problem. Is local.

The default option calls another code that have the bellow code:

try:
    from django.utils.timezone import utc, now, today
except ImportError:
    return datetime.now()

Django 1.9 doesn't have the path "django.utils.timezone.now"

The ImportError returns the wrong value!

Thank you!

[cronywalls]

This error statement ​TypeError: 'module' object is not callable is raised as you are being confused about the Class name and Module name. The problem is in the import line . You are importing a module, not a class. This happend because the module name and class name have the same name .

If you have a class "MyClass" in a file called "MyClass.py" , then you should import :

from MyClass import MyClass

In Python , a script is a module, whose name is determined by the filename . So when you start out your file MyClass.py with import MyClass you are creating a loop in the module structure.

In Python, everything (including functions, methods, modules, classes etc.) is an object , and methods are just attributes like every others. So,there's no separate namespaces for methods. So when you set an instance attribute, it shadows the class attribute by the same name. The obvious solution is to give attributes different names.