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# pip list –outdated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# pip list –outdated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

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