Heroku的Django : KeyError：“收藏品”

Question

我试图在Heroku上部署我的简单Django web应用程序，但是构建失败了，出现了以下错误：

       Successfully installed asgiref-3.3.4 dj-database-url-0.5.0 django-3.2 django-heroku-0.3.1 gunicorn-20.1.0 numpy-1.20.2 pillow-8.2.0 psycopg2-2.8.6 pytz-2021.1 sqlparse-0.4.1 torch-1.8.1 torchvision-0.9.1 typing-extensions-3.7.4.3 whitenoise-5.2.0

-----> $ python pytorch_django/manage.py collectstatic --noinput

       Traceback (most recent call last):

         File "/app/.heroku/python/lib/python3.9/site-packages/django/core/management/__init__.py", line 237, in fetch_command

           app_name = commands[subcommand]

       KeyError: 'collectstatic'

       During handling of the above exception, another exception occurred:

       Traceback (most recent call last):

         File "/tmp/build_6b3954ac/pytorch_django/manage.py", line 22, in <module>

           main()

         File "/tmp/build_6b3954ac/pytorch_django/manage.py", line 18, in main

           execute_from_command_line(sys.argv)

         File "/app/.heroku/python/lib/python3.9/site-packages/django/core/management/__init__.py", line 419, in execute_from_command_line

           utility.execute()

         File "/app/.heroku/python/lib/python3.9/site-packages/django/core/management/__init__.py", line 413, in execute

           self.fetch_command(subcommand).run_from_argv(self.argv)

         File "/app/.heroku/python/lib/python3.9/site-packages/django/core/management/__init__.py", line 244, in fetch_command

           settings.INSTALLED_APPS

         File "/app/.heroku/python/lib/python3.9/site-packages/django/conf/__init__.py", line 82, in __getattr__

           self._setup(name)

         File "/app/.heroku/python/lib/python3.9/site-packages/django/conf/__init__.py", line 69, in _setup

           self._wrapped = Settings(settings_module)

         File "/app/.heroku/python/lib/python3.9/site-packages/django/conf/__init__.py", line 170, in __init__

           mod = importlib.import_module(self.SETTINGS_MODULE)

         File "/app/.heroku/python/lib/python3.9/importlib/__init__.py", line 127, in import_module

           return _bootstrap._gcd_import(name[level:], package, level)

         File "<frozen importlib._bootstrap>", line 1030, in _gcd_import

         File "<frozen importlib._bootstrap>", line 1007, in _find_and_load

         File "<frozen importlib._bootstrap>", line 972, in _find_and_load_unlocked

         File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed

         File "<frozen importlib._bootstrap>", line 1030, in _gcd_import

         File "<frozen importlib._bootstrap>", line 1007, in _find_and_load

         File "<frozen importlib._bootstrap>", line 984, in _find_and_load_unlocked

       ModuleNotFoundError: No module named 'project'

 !     Error while running '$ python pytorch_django/manage.py collectstatic --noinput'.

我已经成功地在Heroku上部署了其他Django应用程序，我不明白这里有什么问题。KeyError: 'collectstatic'是什么意思，它是从哪里来的？

在本地，应用程序运行良好，python manage.py collectstatic运行也很好。有什么问题吗？它是否与Python3.9相关？这里有Python3.8。

编辑：这种情况也发生在刚创建的Django应用程序中--代码没有任何变化。

Answer 1

问题是我自己的错，但不是Django应用程序，而是我的Heroku配置。在我的Heroku环境变量(Settings > Config Vars)中，我错误地将DJANGO_SETTINGS_MODULE设置为project.prod_settings。但是，我的Django项目名为pytorch_django，因此我不得不将它设置为pytorch_django.prod_settings。

这就是导致错误ModuleNotFoundError: No module named 'project'的原因。将DJANGO_SETTINGS_MODULE更改为正确的路径解决了问题。