Django - Foreman找不到已安装的模型
Django - Foreman找不到已安装的模型
提问于 2016-04-26 19:09:15
我试图使用福尔曼 / 洪丘来管理基于Procfile文件的Django应用程序。当我启动应用程序查看普通的python manage.py runserver时，一切都很好。但是，当我通过honcho start或foreman start web启动应用程序时，我会收到以下错误：
11:59:31 system | web.1 started (pid=27959)
11:59:31 web.1 | [2016-04-26 11:59:31 -0700] [27959] [INFO] Starting gunicorn 19.4.5
11:59:31 web.1 | [2016-04-26 11:59:31 -0700] [27959] [INFO] Listening at: http://0.0.0.0:5000 (27959)
11:59:31 web.1 | [2016-04-26 11:59:31 -0700] [27959] [INFO] Using worker: sync
11:59:31 web.1 | [2016-04-26 11:59:31 -0700] [27962] [INFO] Booting worker with pid: 27962
11:59:31 web.1 | [2016-04-26 18:59:31 +0000] [27962] [ERROR] Exception in worker process:
11:59:31 web.1 | Traceback (most recent call last):
11:59:31 web.1 | File "/Library/Python/2.7/site-packages/gunicorn/arbiter.py", line 515, in spawn_worker
11:59:31 web.1 | worker.init_process()
11:59:31 web.1 | File "/Library/Python/2.7/site-packages/gunicorn/workers/base.py", line 122, in init_process
11:59:31 web.1 | self.load_wsgi()
11:59:31 web.1 | File "/Library/Python/2.7/site-packages/gunicorn/workers/base.py", line 130, in load_wsgi
11:59:31 web.1 | self.wsgi = self.app.wsgi()
11:59:31 web.1 | File "/Library/Python/2.7/site-packages/gunicorn/app/base.py", line 67, in wsgi
11:59:31 web.1 | self.callable = self.load()
11:59:31 web.1 | File "/Library/Python/2.7/site-packages/gunicorn/app/wsgiapp.py", line 65, in load
11:59:31 web.1 | return self.load_wsgiapp()
11:59:31 web.1 | File "/Library/Python/2.7/site-packages/gunicorn/app/wsgiapp.py", line 52, in load_wsgiapp
11:59:31 web.1 | return util.import_app(self.app_uri)
11:59:31 web.1 | File "/Library/Python/2.7/site-packages/gunicorn/util.py", line 357, in import_app
11:59:31 web.1 | __import__(module)
11:59:31 web.1 | File "../wsgi.py", line 17, in <module>
11:59:31 web.1 | application = get_wsgi_application()
11:59:31 web.1 | File "/Library/Python/2.7/site-packages/django/core/wsgi.py", line 13, in get_wsgi_application
11:59:31 web.1 | django.setup()
11:59:31 web.1 | File "/Library/Python/2.7/site-packages/django/__init__.py", line 18, in setup
11:59:31 web.1 | apps.populate(settings.INSTALLED_APPS)
11:59:31 web.1 | File "/Library/Python/2.7/site-packages/django/apps/registry.py", line 85, in populate
11:59:31 web.1 | app_config = AppConfig.create(entry)
11:59:31 web.1 | File "/Library/Python/2.7/site-packages/django/apps/config.py", line 90, in create
11:59:31 web.1 | module = import_module(entry)
11:59:31 web.1 | File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/importlib/__init__.py", line 37, in import_module
11:59:31 web.1 | __import__(name)
11:59:31 web.1 | ImportError: No module named django_messages
11:59:31 web.1 | [2016-04-26 18:59:31 +0000] [27962] [INFO] Worker exiting (pid: 27962)
11:59:31 web.1 | [2016-04-26 11:59:31 -0700] [27959] [INFO] Shutting down: Master
11:59:31 web.1 | [2016-04-26 11:59:31 -0700] [27959] [INFO] Reason: Worker failed to boot.
11:59:31 system | web.1 stopped (rc=3)这是为了尝试安装django-信息模块。我和其他模块也有同样的问题。我在django-webpack-装载机中也遇到了同样的问题。我还应该指出，无论是在虚拟环境中还是在停用它时，我都会收到错误。
下面是安装django消息的命令：
$> pip install django-messages
Requirement already satisfied (use --upgrade to upgrade): django-messages in ./lib/python2.7/site-packages安装了应用程序；
INSTALLED_APPS = (
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'my_app',
'django_messages',
)我不知道我还能提供哪些其他信息来帮助排除故障，但最基本的问题是如何让安装的应用程序与foreman / honcho一起工作？
回答 1
Stack Overflow用户
回答已采纳
发布于 2016-04-30 15:19:26
Honcho和Foreman不使用您的虚拟环境中的Python可执行文件和lib，虽然您没有包含您的Honcho，但是只要调用python就可以使用系统范围的可执行文件和lib。
不幸的是，您不能仅仅调用/path/to/virtualenv/bin/activate作为Procfile的一部分，因为Honcho在其中一个子进程退出时退出，正如讨论过的在这个Github问题线程中。但是，您可以使用&&操作符在一个子subshell中执行此脚本和python脚本，将它们链接在一起：
web: source venv/bin/activate && python manage.py 或者，在导入Django应用程序之前，您可以更幸运地修改您的wsgi.py包装器，以显式地导入您的虚拟程序库：
# Activate your virtual env
activate_env=os.path.expanduser("/path/to/virtualenv/bin/activate_this.py")
execfile(activate_env, dict(__file__=activate_env))这些应该在导入任何模块(os除外)之前执行，以确保应用程序读取正确的站点库。
最后，Honcho本身支持在Procfile旁边使用.env文件来设置运行进程的环境。此文件的格式与任何bash脚本相同。您可以使用.env文件设置PYTHONPATH和PYTHONHOME，以指向Virtualenv中的库，然后从Procfile中指定Virtualenv中的显式Python解释器。
.env文件
PYTHONHOME=/path/to/virtualenv/lib/python2.7
PYTHONHOME=页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/36873730
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