我正在使用 django 1.7，我刚刚添加了一个自定义用户模型。当我运行 python3 manage.py makemigrations 或 python3 manage.py migrate 时，我收到错误:TypeError: __init__() got an Unexpected keywords argument 'preserve_default' 。添加新的自定义用户模型后出现此问题。完整的回溯是:
Traceback (most recent call last):
File "manage.py", line 10, in <module>
execute_from_command_line(sys.argv)
File "/usr/local/lib/python3.4/dist-packages/django/core/management/__init__.py", line 385, in execute_from_command_line
utility.execute()
File "/usr/local/lib/python3.4/dist-packages/django/core/management/__init__.py", line 377, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/usr/local/lib/python3.4/dist-packages/django/core/management/base.py", line 288, in run_from_argv
self.execute(*args, **options.__dict__)
File "/usr/local/lib/python3.4/dist-packages/django/core/management/base.py", line 338, in execute
output = self.handle(*args, **options)
File "/usr/local/lib/python3.4/dist-packages/django/core/management/commands/migrate.py", line 63, in handle
executor = MigrationExecutor(connection, self.migration_progress_callback)
File "/usr/local/lib/python3.4/dist-packages/django/db/migrations/executor.py", line 17, in __init__
self.loader = MigrationLoader(self.connection)
File "/usr/local/lib/python3.4/dist-packages/django/db/migrations/loader.py", line 48, in __init__
self.build_graph()
File "/usr/local/lib/python3.4/dist-packages/django/db/migrations/loader.py", line 173, in build_graph
self.load_disk()
File "/usr/local/lib/python3.4/dist-packages/django/db/migrations/loader.py", line 103, in load_disk
migration_module = import_module("%s.%s" % (module_name, migration_name))
File "/usr/lib/python3.4/importlib/__init__.py", line 109, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 2231, in _gcd_import
File "<frozen importlib._bootstrap>", line 2214, in _find_and_load
File "<frozen importlib._bootstrap>", line 2203, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 1200, in _load_unlocked
File "<frozen importlib._bootstrap>", line 1129, in _exec
File "<frozen importlib._bootstrap>", line 1448, in exec_module
File "<frozen importlib._bootstrap>", line 321, in _call_with_frames_removed
File "/home/denny/workspace/teenvestor/core/migrations/0003_auto_20141017_1749.py", line 7, in <module>
class Migration(migrations.Migration):
File "/home/denny/workspace/teenvestor/core/migrations/0003_auto_20141017_1749.py", line 46, in Migration
preserve_default=True,
TypeError: __init__() got an unexpected keyword argument 'preserve_default'
最佳答案
Django 1.7.1 在 AlterField 中添加了对preserve_default 参数的支持。因此，从 1.7 版升级 Django 将解决该问题。
pip install django --upgrade
python 管理.py 迁移
关于Django 1.7 迁移，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/26432242/