解决Python出现_warn_unsafe_extraction问题的方法
发布于 2016-05-08 04:25:10 | 331 次阅读 | 评论: 1 | 来源: 网友投递
这里有新鲜出炉的Python3 Cookbook中文版，程序狗速度看过来！
Python编程语言
Python 是一种面向对象、解释型计算机程序设计语言，由Guido van Rossum于1989年底发明，第一个公开发行版发行于1991年。Python语法简洁而清晰，具有丰富和强大的类库。它常被昵称为胶水语言，它能够把用其他语言制作的各种模块（尤其是C/C++）很轻松地联结在一起。
这篇文章主要为大家详细介绍了解决Python出现'_warn_unsafe_extraction'问题的方法，感兴趣的小伙伴们可以参考一下
在Python项目中运行出现了“AttributeError: ResourceManager instance has no attribute ‘_warn_unsafe_extraction'”问题，研究了一下，发现是setuptools在MacOS下的一个问题（见下图），我出现问题的是pymongo的库，需要删除pymongo，然后降级setuptools再重新安装。
解决方法：
1、删除pymongo：
sudo easy_install -mxN pmongo2、降级setuptools：
sudo easy_install -mxN setuptools
sudo easy_install "setuptools<0.7"
3、重装pymongo：
sudo easy_install pymongo
问题解决！！！！！
附错误信息：
/System/Library/Frameworks/Python.framework/Versions/2.7/bin/python /Users/yourtion/Codes/python/knowme/server.py
Traceback (most recent call last):
File "/Users/yourtion/Codes/python/knowme/server.py", line 5, in <module>
from Handler.api import UserHandler
File "/Users/yourtion/Codes/python/knowme/Handler/api.py", line 3, in <module>
from Model.user import User
File "/Users/yourtion/Codes/python/knowme/Model/user.py", line 2, in <module>
from mongoengine import *
File "build/bdist.macosx-10.9-intel/egg/mongoengine/__init__.py", line 1, in <module>
File "build/bdist.macosx-10.9-intel/egg/mongoengine/document.py", line 4, in <module>
File "/Library/Python/2.7/site-packages/pymongo-2.6.3-py2.7-macosx-10.8-intel.egg/pymongo/__init__.py", line 80, in <module>
File "/Library/Python/2.7/site-packages/pymongo-2.6.3-py2.7-macosx-10.8-intel.egg/pymongo/connection.py", line 39, in <module>
File "/Library/Python/2.7/site-packages/pymongo-2.6.3-py2.7-macosx-10.8-intel.egg/pymongo/mongo_client.py", line 44, in <module>
File "/Library/Python/2.7/site-packages/pymongo-2.6.3-py2.7-macosx-10.8-intel.egg/bson/__init__.py", line 41, in <module>
File "/Library/Python/2.7/site-packages/pymongo-2.6.3-py2.7-macosx-10.8-intel.egg/bson/_cbson.py", line 7, in <module>
File "/Library/Python/2.7/site-packages/pymongo-2.6.3-py2.7-macosx-10.8-intel.egg/bson/_cbson.py", line 4, in __bootstrap__
File "build/bdist.macosx-10.9-intel/egg/pkg_resources.py", line 914, in resource_filename
%s
File "build/bdist.macosx-10.9-intel/egg/pkg_resources.py", line 1601, in get_resource_filename
"""Retrieve a PEP 302 "importer" for the given path item
File "build/bdist.macosx-10.9-intel/egg/pkg_resources.py", line 1629, in _extract_resource
from pkgutil import get_importer, ImpImporter
File "build/bdist.macosx-10.9-intel/egg/pkg_resources.py", line 990, in get_cache_path
AttributeError: ResourceManager instance has no attribute '_warn_unsafe_extraction'
Process finished with exit code 1
原文链接：http://blog.yourtion.com/solve-warn_unsafe_extraction.html
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