django中app模块找不到

Question

环境介绍

django verison=3.13, python version=3.9.0

因为要使用多个app，遂在项目目录下创建了apps这个文件夹放置其他app，在settings.py中也添加了系统路径，但问题就在这里，如下：

Pathlib方式

sys.path.append(Path(BASE_DIR).joinpath('apps'))

然后启动的时候就报错了。

Exception in thread django-main-thread:
Traceback (most recent call last):
  File "/usr/local/Cellar/python@3.9/3.9.0/Frameworks/Python.framework/Versions/3.9/lib/python3.9/threading.py", line 950, in _bootstrap_inner
    self.run()
  File "/usr/local/Cellar/python@3.9/3.9.0/Frameworks/Python.framework/Versions/3.9/lib/python3.9/threading.py", line 888, in run
    self._target(*self._args, **self._kwargs)
  File "/Users/dapeng/.virtualenvs/dj_new/lib/python3.9/site-packages/django/utils/autoreload.py", line 53, in wrapper
    fn(*args, **kwargs)
  File "/Users/dapeng/.virtualenvs/dj_new/lib/python3.9/site-packages/django/core/management/commands/runserver.py", line 110, in inner_run
    autoreload.raise_last_exception()
  File "/Users/dapeng/.virtualenvs/dj_new/lib/python3.9/site-packages/django/utils/autoreload.py", line 76, in raise_last_exception
    raise _exception[1]
  File "/Users/dapeng/.virtualenvs/dj_new/lib/python3.9/site-packages/django/core/management/__init__.py", line 357, in execute
    autoreload.check_errors(django.setup)()
  File "/Users/dapeng/.virtualenvs/dj_new/lib/python3.9/site-packages/django/utils/autoreload.py", line 53, in wrapper
    fn(*args, **kwargs)
  File "/Users/dapeng/.virtualenvs/dj_new/lib/python3.9/site-packages/django/__init__.py", line 24, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "/Users/dapeng/.virtualenvs/dj_new/lib/python3.9/site-packages/django/apps/registry.py", line 91, in populate
    app_config = AppConfig.create(entry)
  File "/Users/dapeng/.virtualenvs/dj_new/lib/python3.9/site-packages/django/apps/config.py", line 90, in create
    module = import_module(entry)
  File "/usr/local/Cellar/python@3.9/3.9.0/Frameworks/Python.framework/Versions/3.9/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 984, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'user'

os.path方式

sys.path.append(os.path.join(BASE_DIR, 'apps'))

就很正常的启动了。

疑问

Answer 1

print看下结果啊，或者debug启动打断点看看这两者的输出差异