[英]How to fix “ImportError: No module named …” error
I have a working Django app called django_trial_on_mac
that I recently moved to GitHub in order to deploy it to heroku in the future. 我有一个工作正常的Django应用程序
django_trial_on_mac
,最近移到GitHub,以便将来将其部署到heroku。 I cloned the project to my local GitHub folder on my mac but when I ran the app from the new directory I receive the following error: 我将项目克隆到了Mac上的本地GitHub文件夹中,但是当我从新目录运行应用程序时,出现以下错误:
Traceback (most recent call last):
File "/Users/danieloram/GitHub/Python_projects_for_github/django_trial_on_mac/manage.py", line 10, in <module>
execute_from_command_line(sys.argv)
File "/Library/Frameworks/Python.framework/Versions/3.2/lib/python3.2/site-packages/django/core/management/__init__.py", line 338, in execute_from_command_line
utility.execute()
File "/Library/Frameworks/Python.framework/Versions/3.2/lib/python3.2/site-packages/django/core/management/__init__.py", line 303, in execute
settings.INSTALLED_APPS
File "/Library/Frameworks/Python.framework/Versions/3.2/lib/python3.2/site-packages/django/conf/__init__.py", line 48, in __getattr__
self._setup(name)
File "/Library/Frameworks/Python.framework/Versions/3.2/lib/python3.2/site-packages/django/conf/__init__.py", line 44, in _setup
self._wrapped = Settings(settings_module)
File "/Library/Frameworks/Python.framework/Versions/3.2/lib/python3.2/site-packages/django/conf/__init__.py", line 92, in __init__
mod = importlib.import_module(self.SETTINGS_MODULE)
File "/Library/Frameworks/Python.framework/Versions/3.2/lib/python3.2/importlib/__init__.py", line 124, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "/Library/Frameworks/Python.framework/Versions/3.2/lib/python3.2/importlib/_bootstrap.py", line 807, in _gcd_import
_gcd_import(parent)
File "/Library/Frameworks/Python.framework/Versions/3.2/lib/python3.2/importlib/_bootstrap.py", line 824, in _gcd_import
raise ImportError(_ERR_MSG.format(name))
ImportError: No module named django_trial_on_mac
I have not yet found a solution to this specific case of the error and am hoping someone could explain or point me towards somewhere I can find the answer. 我尚未找到针对这种特定情况的错误的解决方案,希望有人可以向我解释或指出我可以找到答案的地方。 thanks!
谢谢!
The problem turned out to be that I had a non-standard project directory structure. 问题原来是我有一个非标准的项目目录结构。 I was missing an
__init__.py
file in in my 'django_trial_on_mac' directory. 我在'django_trial_on_mac'目录中缺少
__init__.py
文件。 As soon as I created an empty __init__.py
file there, the app ran normally. 我在那里创建一个空的
__init__.py
文件后,该应用程序便正常运行。
__init__.py
files tell Django that the directory should be treated as a package and since this file did not exist in the 'django_trial_on_mac' directory, it could not import the module 'django_trial_on_mac'. __init__.py
文件告诉Django该目录应该被视为一个包,并且由于该文件不存在于'django_trial_on_mac'目录中,因此它无法导入模块'django_trial_on_mac'。
Hard to answer without more info, but it looks like something is wrong with PYTHONPATH
env variable on your Heroku: 没有更多信息很难回答,但是Heroku上的
PYTHONPATH
env变量似乎出了点问题:
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