Pythonanywhere。 ImportError：没有名为“crispy_forms”的模块

Question

我已经在“pythonanywhere”上实现了我的 Django 应用程序，但是当我尝试在日志中加载我的网站时，我看到了以下信息：

2019-02-27 20:20:37,677: Error running WSGI application
2019-02-27 20:20:37,678: ImportError: No module named 'crispy_forms'
2019-02-27 20:20:37,679:   File "/var/www/zen404_pythonanywhere_com_wsgi.py", line 15, in <module>
2019-02-27 20:20:37,679:     application = get_wsgi_application()
2019-02-27 20:20:37,679: 
2019-02-27 20:20:37,679:   File "/home/zen404/.virtualenvs/zen404.pythonanywhere.com/lib/python3.5/site-packages/django/core/wsgi.py", line 12, in get_wsgi_application
2019-02-27 20:20:37,679:     django.setup(set_prefix=False)
2019-02-27 20:20:37,684: 
2019-02-27 20:20:37,684:   File "/home/zen404/.virtualenvs/zen404.pythonanywhere.com/lib/python3.5/site-packages/django/__init__.py", line 24, in setup
2019-02-27 20:20:37,684:     apps.populate(settings.INSTALLED_APPS)
2019-02-27 20:20:37,684: 
2019-02-27 20:20:37,684:   File "/home/zen404/.virtualenvs/zen404.pythonanywhere.com/lib/python3.5/site-packages/django/apps/registry.py", line 89, in populate
2019-02-27 20:20:37,685:     app_config = AppConfig.create(entry)
2019-02-27 20:20:37,685: 
2019-02-27 20:20:37,685:   File "/home/zen404/.virtualenvs/zen404.pythonanywhere.com/lib/python3.5/site-packages/django/apps/config.py", line 90, in create
2019-02-27 20:20:37,685:     module = import_module(entry)

当然，我在里面安装了一个虚拟环境和“crispy_forms”。什么会触发此错误？当我在 Bash PythonAnywhere 中运行 python3 manage.py runserver 命令时，服务器正确启动。但在日志中，错误仍然可见，并且页面基本不起作用。

我们将不胜感激。

编辑

2019-02-27 21:55:48,333: Error running WSGI application
2019-02-27 21:55:48,334: ImportError: No module named 'crispy_forms'
2019-02-27 21:55:48,334:   File "/var/www/zen404_pythonanywhere_com_wsgi.py", line 15, in <module>
2019-02-27 21:55:48,334:     application = get_wsgi_application()
2019-02-27 21:55:48,335: 
2019-02-27 21:55:48,335:   File "/home/zen404/.virtualenvs/zen404.pythonanywhere.com/lib/python3.5/site-packages/django/core/wsgi.py", line 12, in get_wsgi_application
2019-02-27 21:55:48,335:     django.setup(set_prefix=False)
2019-02-27 21:55:48,335: 
2019-02-27 21:55:48,335:   File "/home/zen404/.virtualenvs/zen404.pythonanywhere.com/lib/python3.5/site-packages/django/__init__.py", line 24, in setup
2019-02-27 21:55:48,335:     apps.populate(settings.INSTALLED_APPS)
2019-02-27 21:55:48,335: 
2019-02-27 21:55:48,336:   File "/home/zen404/.virtualenvs/zen404.pythonanywhere.com/lib/python3.5/site-packages/django/apps/registry.py", line 89, in populate
2019-02-27 21:55:48,336:     app_config = AppConfig.create(entry)
2019-02-27 21:55:48,336: 
2019-02-27 21:55:48,336:   File "/home/zen404/.virtualenvs/zen404.pythonanywhere.com/lib/python3.5/site-packages/django/apps/config.py", line 90, in create
2019-02-27 21:55:48,336:     module = import_module(entry)
2019-02-27 21:55:48,336: ***************************************************
2019-02-27 21:55:48,336: If you're seeing an import error and don't know why,
2019-02-27 21:55:48,336: we have a dedicated help page to help you debug: 
2019-02-27 21:55:48,337: https://help.pythonanywhere.com/pages/DebuggingImportError/
2019-02-27 21:55:48,337: ***************************************************

重击

(zen404.pythonanywhere.com) 21:54 ~ $ which python
/home/zen404/.virtualenvs/zen404.pythonanywhere.com/bin/python
(zen404.pythonanywhere.com) 21:55 ~ $ python -V
Python 3.5.2
(zen404.pythonanywhere.com) 21:55 ~ $ pip3 install --upgrade django-crispy-forms
Looking in links: /usr/share/pip-wheels
Requirement already up-to-date: django-crispy-forms in ./.virtualenvs/zen404.pythonanywhere.com/lib/python3.5/site-packages (1.7.2)
(zen404.pythonanywhere.com) 21:55 ~ $ 

Answer 1

您确定您在正确的环境中安装了该软件包吗？

在通过 bash 为您的虚拟环境安装软件包之前，您必须激活它：

# activate the virtualenv, adapt the path if necessary:
source /home/zen404/.virtualenvs/zen404.pythonanywhere.com/bin/activate
# checkout if the python executable is from your virtualenv
which python
# THEN install your package - for the activated virtual env
pip install --upgrade django-crispy-forms