要好几分钟，具体多少没测试，反正很多分钟。
推荐学习书目
› Learn Python the Hard Way
Python Sites
› PyPI - Python Package Index
› http://diveintopython.org/toc/index.html
› Pocoo
值得关注的项目
› PyPy
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› 结巴中文分词
› Green Unicorn
› Sentry
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› pytest
Python 编程
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› PEP 8
› Google Python Style Guide
› Code Style from The Hitchhiker's Guide
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