django1.11 报错:import_module __import__(name) ImportError: Import by filename is not supported._apply all migrations: admin, auth, contenttypes, p-优快云博客

本文链接：https://blog.youkuaiyun.com/somiceast/article/details/80057308

在CentOS6和Python 2.7.14环境下使用Django 1.11时，运行`python manage.py migrate`命令出现错误：`ImportModule: __import__(name) ImportError: Import by filename is not supported.`。解决方案是将settings.py中的应用引入方式从文件名改为'app名称'，例如改为'polls'，这是因为Django 1.11主要为Python 3.4设计，与Python 2.7可能存在兼容性问题。

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环境：centos6 python2.7.14 django1.11
输入命令：
[root@bigdata mysite]#python manage.py migrate

Operations to perform:
  Apply all migrations: admin, auth, contenttypes, polls, sessions
Running migrations:
  Applying polls.0001_initial... OK
[root@bigdata mysite]# python manage.py migrate
Traceback (most recent call last):
  File "manage.py", line 22, in <module>
    execute_from_command_line(sys.argv)
  File "/usr/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 364, in execute_from_command_line
    utility.execute()
  File "/usr/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 338, in execute
    django.setup()
  File "/usr/local/lib/python2.7/site-packages/django/__init__.py", line 27, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "/usr/local/lib/python2.7/site-packages/django/apps/registry.py", line 85, in populate
    app_config = AppConfig.create(entry)
  File "/usr/local/lib/python2.7/site-packages/django/apps/config.py", line 127, in create
    import_module(entry)
  File "/usr/local/lib/python2.7/importlib/__init__.py", line 37, in import_module
    __import__(name)
ImportError: Import by filename is not supported.

我的setting.py中，添加的app路径是这样的

INSTALLED_APPS = [
     'polls.apps/PollsConfig',
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    #'polls'
]

第一行注释掉，改成‘polls’（我的app名称），就可以运行了

INSTALLED_APPS = [
    # 'polls.apps/PollsConfig',
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'polls'
]

问题原因：因django1.11适配的是python 3.4，python2.7可能会适配不佳，所以要找回旧版本的写法，我这样的改法参照https://code.ziqiangxuetang.com/django/django-models.html。