PYTHONPATH与运行PyCharm开发服务器的PYTHONPATH不同？

Question

在试图找到如何将Google工具包正确导入到我的GAE项目时，我注意到在PyCharm (4.5.2pro)中运行该项目时，PYTHONPATH是而不是，与PyCharm的Python控制台中的相同。

例如，在控制台中，我正确地从GAE中找到了oauth2client库(v.1.9.23)：

/usr/bin/python2.7 -u /home/usr_local/pycharm-4.5.2/helpers/pydev/pydevconsole.py 43085 43754
Python 2.7.8 (default, Sep 30 2014, 15:34:38) [GCC]
Type "copyright", "credits" or "license" for more information.

IPython 2.2.0 -- An enhanced Interactive Python.
?         -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help      -> Python's own help system.
object?   -> Details about 'object', use 'object??' for extra details.
PyDev console: using IPython 2.2.0

import sys; print('Python %s on %s' % (sys.version, sys.platform))
sys.path.extend(['/home/user/src/myapp', '/usr/local/google_appengine', '/usr/local/google_appengine/lib/antlr3', '/usr/local/google_appengine/lib/apiclient', '/usr/local/google_appengine/lib/endpoints-1.0', '/usr/local/google_appengine/lib/yaml-3.10', '/usr/local/google_appengine/lib/markupsafe-0.15', '/usr/local/google_appengine/lib/django-1.3', '/usr/local/google_appengine/lib/requests', '/usr/local/google_appengine/lib/fancy_urllib', '/usr/local/google_appengine/lib/webob_0_9', '/usr/local/google_appengine/lib/graphy', '/usr/local/google_appengine/lib/distutils', '/usr/local/google_appengine/lib/concurrent', '/usr/local/google_appengine/lib/cacerts', '/usr/local/google_appengine/lib/six', '/usr/local/google_appengine/lib/pyasn1', '/usr/local/google_appengine/lib/setuptools-0.6c11', '/usr/local/google_appengine/lib/jinja2-2.6', '/usr/local/google_appengine/lib/portpicker', '/usr/local/google_appengine/lib/django-0.96', '/usr/local/google_appengine/lib/django-1.2', '/usr/local/google_appengine/lib/PyAMF-0.6.1', '/usr/local/google_appengine/lib/sqlcmd', '/usr/local/google_appengine/lib/oauth2client', '/usr/local/google_appengine/lib/uritemplate', '/usr/local/google_appengine/lib/httplib2', '/usr/local/google_appengine/lib/protorpc-1.0', '/usr/local/google_appengine/lib/python-gflags', '/usr/local/google_appengine/lib/rsa', '/usr/local/google_appengine/lib/grizzled', '/usr/local/google_appengine/lib/django-1.5', '/usr/local/google_appengine/lib/ipaddr', '/usr/local/google_appengine/lib/django-1.4', '/usr/local/google_appengine/lib/argparse', '/usr/local/google_appengine/lib/google-api-python-client', '/usr/local/google_appengine/lib/mox', '/usr/local/google_appengine/lib/cherrypy', '/usr/local/google_appengine/lib/prettytable', '/usr/local/google_appengine/lib/webapp2-2.3', '/usr/local/google_appengine/lib/oauth2', '/usr/local/google_appengine/lib/pyasn1_modules', '/usr/local/google_appengine/lib/webapp2-2.5.2', '/usr/local/google_appengine/lib/websocket', '/usr/local/google_appengine/lib/yaml', '/usr/local/google_appengine/lib/docker', '/usr/local/google_appengine/lib/simplejson', '/usr/local/google_appengine/lib/webapp2-2.5.1', '/usr/local/google_appengine/lib/deprecated_enum'])

Python 2.7.8 (default, Sep 30 2014, 15:34:38) [GCC] on linux2
In[2]: from oauth2client import crypt
In[3]: crypt
Out[3]: <module 'oauth2client.crypt' from '/usr/local/google_appengine/lib/oauth2client/oauth2client/crypt.py'>
In[4]: 

但是，当我运行这个项目时，我得到：

  File "/home/user/src/myapp/main/identitytoolkit/gitkitclient.py", line 47, in <module>
    from oauth2client import crypt
ImportStringError: import_string() failed for 'gitkit.GitKitHandler'. Possible reasons are:

- missing __init__.py in a package;
- package or module path not included in sys.path;
- duplicated package or module name taking precedence in sys.path;
- missing module, class, function or variable;

Original exception:

ImportError: No module named oauth2client

我还在异常之前转储sys.path (显示实际路径，/usr/local/google_appengine是指向/home/usr_local/google_appengine_1.9.23的符号链接)：

ERROR    2015-06-30 18:59:46,199 gitkit.py:13] ['/home/user/src/myapp/main', '/home/usr_local/google_appengine_1.9.23', '/home/usr_local/google_appengine_1.9.23', '/usr/lib64/python2.7', '/usr/lib64/python2.7/lib-dynload', '/home/usr_local/google_appengine_1.9.23/lib/webapp2-2.5.2', '/home/usr_local/google_appengine_1.9.23/lib/jinja2-2.6', '/home/usr_local/google_appengine_1.9.23/lib/pycrypto-2.6', '/home/usr_local/google_appengine_1.9.23/lib/markupsafe-0.15', '/home/usr_local/google_appengine_1.9.23/lib/setuptools-0.6c11', '/home/usr_local/google_appengine_1.9.23/lib/protorpc-1.0', '/home/usr_local/google_appengine_1.9.23/lib/webob-1.1.1', '/home/usr_local/google_appengine_1.9.23/lib/yaml-3.10']

是否有一种方法可以将PyCharm配置为将相同的PYTHONPATH从控制台(这是IMHO正确的)应用于开发服务器执行？

或者- PyCharm如何确定/配置开发服务器执行路径？(如果需要，我甚至不介意手动配置正确的路径)。

如果相关的话，我已经升级了几次PyCharm和GAE版本，同时也在做这个项目。

Answer 1

结果表明，GAE开发服务器根据SDK安装和执行的应用程序代码本身来调整自己的执行路径。

在我的例子中的失败是由一个多模块应用程序中的不正确的第三方自由裁量权造成的。我在这里记录了我的修复：Is Google Identity Toolkit (v3) compatible with GAE/python sandbox?