Python下的常用下载安装工具pip的安装方法

1、pip下载安装
1.1 pip下载

# wget "https://pypi.python.org/packages/source/p/pip/pip-1.5.4.tar.gz#md5=834b2904f92d46aaa333267fb1c922bb" --no-check-certificate

# wget "https://pypi.python.org/packages/source/p/pip/pip-1.5.4.tar.gz#md5=834b2904f92d46aaa333267fb1c922bb" --no-check-certificate

1.2 pip安装

# tar -xzvf pip-1.5.4.tar.gz
# cd pip-1.5.4
# python setup.py install

# tar -xzvf pip-1.5.4.tar.gz
# cd pip-1.5.4
# python setup.py install

2. pip使用详解
2.1 pip安装包

# pip install SomePackage

 [...]
 Successfully installed SomePackage

# pip install SomePackage

 [...]
 Successfully installed SomePackage

2.2 pip查看已安装的包

# pip show --files SomePackage

 Name: SomePackage
 Version: 1.0
 Location: /my/env/lib/pythonx.x/site-packages
 Files:
 ../somepackage/__init__.py
 [...]

# pip show --files SomePackage

 Name: SomePackage
 Version: 1.0
 Location: /my/env/lib/pythonx.x/site-packages
 Files:
 ../somepackage/__init__.py
 [...]

2.3 pip检查哪些包需要更新

# pip list --outdated

 SomePackage (Current: 1.0 Latest: 2.0)

# pip list --outdated

 SomePackage (Current: 1.0 Latest: 2.0)

2.4 pip升级包

# pip install --upgrade SomePackage

 [...]
 Found existing installation: SomePackage 1.0
 Uninstalling SomePackage:
 Successfully uninstalled SomePackage
 Running setup.py install for SomePackage
 Successfully installed SomePackage

# pip install --upgrade SomePackage

 [...]
 Found existing installation: SomePackage 1.0
 Uninstalling SomePackage:
 Successfully uninstalled SomePackage
 Running setup.py install for SomePackage
 Successfully installed SomePackage

2.5 pip卸载包

$ pip uninstall SomePackage

 Uninstalling SomePackage:
 /my/env/lib/pythonx.x/site-packages/somepackage
 Proceed (y/n)? y
 Successfully uninstalled SomePackage

$ pip uninstall SomePackage

Uninstalling SomePackage:
 /my/env/lib/pythonx.x/site-packages/somepackage
 Proceed (y/n)? y
 Successfully uninstalled SomePackage

3.使用pip国内源
python使用pip安装模块很方便,可是在国内官方源总是会间歇性的连接不上,其实python在国内也是有安装源的,比如豆瓣,下面是使用方法.
文件路径

linux

~/.pip/pip.conf

文件内容

[global] 

index-url = http://pypi.douban.com/simple 
trusted-host = pypi.douban.com 

或者使用-i指令:

easy_install -i http://pypi.douban.com/simple/ saltTesting 
pip install -i http://pypi.douban.com/simple/ saltTesting 

pip 安装：

1.下载get-pip.py 并运行

https://bootstrap.pypa.io/get-pip.py

切换到get-pip.py 所在目录下 ：python get-pip.py

2.添加环境变量： C:\Python27\Scripts;

C:\Users\Administrator>python --version

Python 2.7.8

C:\Users\Administrator>pip --version
pip 1.5.6 from C:\Python27\lib\site-packages (python 2.7)

C:\Users\Administrator>添加环境变量 C:\Python27;C:\Python27\Scripts;
'添加环境变量' 不是内部或外部命令，也不是可运行的程序
或批处理文件。

C:\Users\Administrator>pip install selenium
Requirement already satisfied (use --upgrade to upgrade): selenium in c:\python2
7\lib\site-packages
Cleaning up...

C:\Users\Administrator>python
Python 2.7.8 (default, Jun 30 2014, 16:03:49) [MSC v.1500 32 bit (Intel)] on win
32
Type "help", "copyright", "credits" or "license" for more information.
>>> import selenium
>>>

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