使用命令安装virtualenvwrapper时:
pip install virtualenvwrapper
出现如下错误:
Collecting virtualenvwrapper
Downloading https://files.pythonhosted.org/packages/c1/6b/2f05d73b2d2f2410b48b90d3783a0034c26afa534a4a95ad5f1178d61191/virtualenvwrapper-4.8.4.tar.gz (334kB)
100% |████████████████████████████████| 337kB 1.7MB/s
Complete output from command python setup.py egg_info:
Couldn't find index page for 'pbr' (maybe misspelled?)
No local packages or download links found for pbr
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/private/tmp/pip-install-ZU0gb8/virtualenvwrapper/setup.py", line 7, in <module>
pbr=True,
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/p

在尝试使用pip安装virtualenvwrapper时遇到了找不到pbr包的错误。通过切换到国内的清华大学开源软件镜像源,分别安装pbr、stevedore和virtualenvwrapper,最终成功安装了virtualenvwrapper。
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