ImportError:没有名为jinja2的模块

Question

使用google-app-engine教程,我收到以下错误堆栈消息:

Traceback (most recent call last):
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\runtime\wsgi.py", line 239, in Handle
handler = _config_handle.add_wsgi_middleware(self._LoadHandler())
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\runtime\wsgi.py", line 298, in _LoadHandler
handler, path, err = LoadObject(self._handler)
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\runtime\wsgi.py", line 84, in LoadObject
obj = __import__(path[0])
File "D:\Dev\SandBoxes\web\omaha\omaha.py", line 4, in <module>
import jinja2
ImportError: No module named jinja2

即使我在app.yaml的库中声明它:

application: ***
version: 1
runtime: python27
api_version: 1
threadsafe: true

libraries:
- name: jinja2
  version: latest
- name: webapp2
  version: latest


handlers:
- url: /css
  static_dir: css
- url: /js
  static_dir: js
- url: /img
  static_dir: img
- url: /.*
  script: omaha.application

有人有过类似的问题吗？

Answer 1

要在本地使用Jinja,您需要在本地安装它

easy_install Jinja2

要么

pip install Jinja2

Answer 2

需要在AEL中重启应用程序.

必须重新启动Google App Engine Launcher中的应用程序才能考虑新的库调用.我误导了所有其他更改不需要实际重启服务器的事实.

Answer 3

使用以下命令为 Python 3 安装 pip 和 Jija2：

sudo apt-get install python3-pip
sudo pip3 install Jinja2

Answer 4

您可能尚未在app.yaml中添加以下行：

- name: jinja2
  version: latest