如何在我的Mac上运行现有的Django项目

Question

我在我的电脑上运行一个Django项目，并且已经把它克隆下来了。现在我直接通过命令 python3 manage.py runserver 来启动这个项目，但之后我遇到了这样的错误：

192:vehiclerent vishal$ python3 manage.py runserver
Watching for file changes with StatReloader
Exception in thread django-main-thread:
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/threading.py", line 1052, in _bootstrap_inner
    self.run()
  File "/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/threading.py", line 989, in run
    self._target(*self._args, **self._kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/django/utils/autoreload.py", line 64, in wrapper
    fn(*args, **kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/django/core/management/commands/runserver.py", line 125, in inner_run
    autoreload.raise_last_exception()
  File "/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/django/utils/autoreload.py", line 87, in raise_last_exception
    raise _exception[1]
  File "/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/django/core/management/__init__.py", line 394, in execute
    autoreload.check_errors(django.setup)()
  File "/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/django/utils/autoreload.py", line 64, in wrapper
    fn(*args, **kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/django/__init__.py", line 24, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/django/apps/registry.py", line 91, in populate
    app_config = AppConfig.create(entry)
                 ^^^^^^^^^^^^^^^^^^^^^^^
  File "/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/django/apps/config.py", line 193, in create
    import_module(entry)
  File "/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/importlib/__init__.py", line 90, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "<frozen importlib._bootstrap>", line 1381, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1354, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1318, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'mathfilters'

有没有人能帮我解决这个问题，并解释一下发生了什么？

Answer 1

你不能仅仅复制一个项目就开始使用。这个项目可能有一个叫做requirements.txt的文件。在你激活的虚拟环境中，进入包含requirements.txt的文件夹，然后在终端里运行命令 pip install -r requirements.txt。这样就会安装requirements.txt文件里列出的所有包。

如果没有requirements.txt文件，你可以去PyPi网站查找需要安装的包，并按照安装说明进行操作。注意要安装的包的版本哦。