Python installation detailed

Linux Yum relies on its own python, to prevent errors, the update here is actually to install a python

View the default Python version

Python-v

First, to resolve the dependency relationship:

# yum-y Install Readline-devel [when interacting, you can have Python's own delete function]

1, install GCC, for compiling python source code

Yum Install GCC

2, download the source package, https://www.python.org/ftp/python/

3. Unzip and enter the source file

4. Compile and install

./configure

Make all

Make install

5. View version

/usr/local/bin/python2.7-v

6. Modify the default Python version

mv/usr/bin/python/usr/bin/python2.6

Ln-s/usr/local/bin/python2.7/usr/bin/python

7. To prevent Yum from performing exceptions, modify the Python version used by Yum

Vi/usr/bin/yum

Change the head #!/usr/bin/python to #!/usr/bin/python2.6

# # #下载最新版的pip, then install

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

Python get-pip.py

Find the location of the PIP

Whereis pip

Find the path to the pip2.7 and create a soft chain for it as the default startup version of the system

Ln-s/usr/local/bin/pip2.7/usr/bin/pip

Step three: Pip installation complete, install Scrapy test

Pip Install Scrapy

# # #zlib安装

VI./modules/setup

Find #zlib zlibmodule.c-i$ (prefix)/include-l$ (exec_prefix)/lib-lz Remove comments and save, then compile and install

Second, configure the PIP source

# # #pip源

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

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

Vim/etc/pip.conf

[Global]

Index-url = http://pypi.douban.com/simple/

Trusted-host = pypi.douban.com

###

Specify Source #pip Install

#配置文件中设置源

#pip the Install command to specify the source

#pip install-i [Source Address] Package_name

For example: Pip install-i http://pypi.douban.com/simple/pymongo--trusted-host pypi.douban.com Specifies to download the Pymongo library from the watercress source and install

#配置文件中设置源

Create the ~/.pip/directory (not required if it exists)

Create the ~/.pip/pip.conf file and modify the contents of the file as follows (example modified to watercress source)

[Global]

Timeout=40

Index-url= http://pypi.douban.com/simple/

[Install]

trusted-host=

Pypi.douban.com

Third, installation Ipython

# Tar XF ipython-1.2.1.tar.gz

# CD IPYTHON-1.2.1/

#/usr/local/python27/bin/python2.7 setup.py Build

#/usr/local/python27/bin/python2.7 setup.py Install

This article is from "Meteor Studio" blog, please make sure to keep this source http://redone.blog.51cto.com/5382451/1923029

Python installation detailed