Phusion乘客应用服务器ModuleNotFoundError - Django [解决了]无法启动网络应用程序。

Question

当我使用pip install -e git+https://github.com/breduin/das.git#egg=django_ajax_selects从github安装第三个站点应用程序时，我的站点没有启动，引发以下错误：

Web application could not be started by the Phusion Passenger application server.



/usr/share/passenger/helper-scripts/wsgi-loader.py:26: DeprecationWarning: the imp module is deprecated in favour of importlib; see the module's documentation for alternative uses
  import sys, os, re, imp, threading, signal, traceback, socket, select, struct, logging, errno
Traceback (most recent call last):
  File "/usr/share/passenger/helper-scripts/wsgi-loader.py", line 369, in <module>
    app_module = load_app()
  File "/usr/share/passenger/helper-scripts/wsgi-loader.py", line 76, in load_app
    return imp.load_source('passenger_wsgi', startup_file)
  File "/opt/python/python-3.8.6/lib/python3.8/imp.py", line 171, in load_source
    module = _load(spec)
  File "<frozen importlib._bootstrap>", line 702, in _load
  File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 783, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/var/www/u1234567/data/www/mysite/passenger_wsgi.py", line 7, in <module>
    application = get_wsgi_application()
  File "/var/www/u1234567/data/env/lib/python3.8/site-packages/django/core/wsgi.py", line 12, in get_wsgi_application
    django.setup(set_prefix=False)
  File "/var/www/u1234567/data/env/lib/python3.8/site-packages/django/__init__.py", line 24, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "/var/www/u1234567/data/env/lib/python3.8/site-packages/django/apps/registry.py", line 91, in populate
    app_config = AppConfig.create(entry)
  File "/var/www/u1234567/data/env/lib/python3.8/site-packages/django/apps/config.py", line 90, in create
    module = import_module(entry)
  File "/opt/python/python-3.8.6/lib/python3.8/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 973, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'ajax_select'

在目录env/lib/python3.8/site-packages/中，通常将来自PyPI的所有包放在其中，您可以找到鸡蛋文件，即PyPI。

/var/www/u1234567/data/env/src/django-ajax-selects
.

路径是正确的，应用程序django-ajax-select就放在那里。

如果没有来自github的应用程序和来自PyPI的其他应用程序，我的站点就会启动ok。似乎服务器不认识鸡蛋链接或路径，但我无法找到如何纠正这一点。

Answer 1

因此，在编写问题时，我自己找到了答案:需要向passenger_wsgi.py中的包(在鸡蛋链接文件中)添加路径。

# -*- coding: utf-8 -*-
import os, sys
sys.path.insert(0, '/var/www/u1234567/data/www/mysite/mysite')
sys.path.insert(1, '/var/www/u1234567/data/env/lib/python3.8/site-packages')
sys.path.insert(2, '/var/www/u1234567/data/env/src/django-ajax-selects')     #<---- this path
os.environ['DJANGO_SETTINGS_MODULE'] = 'mysite.settings'
from django.core.wsgi import get_wsgi_application
application = get_wsgi_application()