Google App Engine在OSX Lion上使用Python失败

Question

我在使用Google App Engine，并且刚刚把我的Mac更新到了Lion系统。我在用Eclipse这个软件，里面装了Pydev插件。现在一更新系统，我就无法启动开发服务器了。下面是我遇到的错误信息。有没有其他人也遇到同样的问题？

Traceback (most recent call last):
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/dev_appserver.py", line 76, in <module>
    run_file(__file__, globals())
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/dev_appserver.py", line 72, in run_file
    execfile(script_path, globals_)
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver_main.py", line 142, in <module>
    import tempfile
  File "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/tempfile.py", line 34, in <module>
    from random import Random as _Random
  File "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/random.py", line 45, in <module>
    from math import log as _log, exp as _exp, pi as _pi, e as _e, ceil as _ceil
ImportError: dlopen(/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-dynload/math.so, 2): Symbol not found: __PyLong_AsScaledDouble
  Referenced from: /System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-dynload/math.so

Answer 1

我也遇到过同样的问题，不过我把我的库文件指向了同一个根目录下的2.7版本，比如说： /System/Library/Frameworks/Python.framework/Versions/2.6/... /System/Library/Frameworks/Python.framework/Versions/2.7/... 这样一来，一切又正常工作了。看起来2.6版本的二进制文件是没有为Lion系统编译的。你可以在设置里找到这个选项，路径是：Preferences-> PyDev-> Interpreter - Python-> Libraries。

Answer 2

我最后选择卸载了GAE和Eclipse，然后重新安装了一遍。现在可以正常使用了。

从查看错误信息来看，似乎是PyDev这个插件出了问题。