一、pip简介
Pip 是安装python包的工具，提供了安装包，列出已经安装的包，升级包以及卸载包的功能。
Pip 是对easy_install的取代，提供了和easy_install相同的查找包的功能，因此可以使用easy_install安装的包也同样可以使用pip进行安装。
二、Linux下的源配置
检查pip.conf文件是否存在
>> cd ~
>> mkdir .pip
>> ls ~/.pip
三、编辑源
方案1： 直接编辑pip.conf
sudo vi ~/.pip/pip.conf
[global]
index-url = http://mirrors.aliyun.com/pypi/simple/
[install]
trusted-host=mirrors.aliyun.com 方案2：
pip install turtle --trusted-host mirrors.aliyun.com 四、测试对比
使用默认源的速度：
Downloading alembic-0.8.0.tar.gz (918kB)
100% |????????????????????????????????| 921kB 9.9kB/s
Collecting beautifulsoup4==4.4.1 (from -r requirements.txt (line 2))
Downloading beautifulsoup4-4.4.1-py2-none-any.whl (81kB)
100% |????????????????????????????????| 81kB 5.2kB/s
Collecting cffi==1.2.1 (from -r requirements.txt (line 3))
Downloading cffi-1.2.1.tar.gz (335kB)
100% |????????????????????????????????| 337kB 15kB/s
Collecting chardet==2.3.0 (from -r requirements.txt (line 4))
Downloading chardet-2.3.0.tar.gz (164kB)
100% |????????????????????????????????| 174kB 9.4kB/s
Collecting cryptography==1.0 (from -r requirements.txt (line 5))
Downloading cryptography-1.0.tar.gz (331kB)
100% |????????????????????????????????| 337kB 7.1kB/s
Collecting Django==1.8.4 (from -r requirements.txt (line 6))
Downloading Django-1.8.4-py2.py3-none-any.whl (6.2MB)
100% |????????????????????????????????| 6.2MB 16kB/s 使用国内源的速度：
Collecting alembic==0.8.0 (from -r requirements.txt (line 1))
Downloading http://mirrors.aliyun.com/pypi/packages/9f/e6/d261c6958d418bcb542b8f79fae7fcf14f7f647f891d42c4ed86a499d690/alembic-0.8.0.tar.gz (918kB)
100% |????????????????????????????????| 921kB 160kB/s
Collecting beautifulsoup4==4.4.1 (from -r requirements.txt (line 2))
Downloading http://mirrors.aliyun.com/pypi/packages/33/62/f3e97eaa87fc4de0cb9b8c51d253cf0df621c6de6b25164dcbab203e5ff7/beautifulsoup4-4.4.1-py2-none-any.whl (81kB)
100% |????????????????????????????????| 81kB 630kB/s
Collecting cffi==1.2.1 (from -r requirements.txt (line 3))
Downloading http://mirrors.aliyun.com/pypi/packages/22/86/b4ae6aeec29105cd2faa07ed2f647349fbcad502d880cb504dca84368853/cffi-1.2.1.tar.gz (335kB)
100% |????????????????????????????????| 337kB 1.4MB/s
Collecting chardet==2.3.0 (from -r requirements.txt (line 4))
Downloading http://mirrors.aliyun.com/pypi/packages/7d/87/4e3a3f38b2f5c578ce44f8dc2aa053217de9f0b6d737739b0ddac38ed237/chardet-2.3.0.tar.gz (164kB)
100% |????????????????????????????????| 174kB 1.1MB/s
Collecting cryptography==1.0 (from -r requirements.txt (line 5))
Downloading http://mirrors.aliyun.com/pypi/packages/60/1f/8cf32f1fa61efafea7d4fcdcb5080c073f99ada1d2a436527bc392f2f8ea/cryptography-1.0.tar.gz (331kB)
100% |????????????????????????????????| 337kB 1.3MB/s
Collecting Django==1.8.4 (from -r requirements.txt (line 6)) 相对而言，速度提升了不是一点半点，而是飞一样的提升。
5. 总结
好了，以上就是这篇文章的全部内容了，碰到问题就要想办法解决，总有办法可以解决碰到的问题，这就是技术的魅力。希望本文的内容对大家的学习或者工作能带来一定的帮助，如果有疑问大家可以留言交流。
