Install Python 3.5.2 (coexisting with Python2) under CentOS 6.5

Installation of Python 3.5.2 (coexisting with Python2) under CentOS 6.5 installation steps

• 1, prepare to compile the environment (the environment is not correct, you may encounter various problems during the installation process.) For example, wget cannot download linked files)

  Yum ' Development Tools ' Yum Install bzip2-devel openssl-devel ncurses-devel

• 2, download Python3.5 source package

  wget https://www.python.org/ftp/python/3.5.2/Python-3.5.2.tar.xz

• 3, compiling

  Tar JXVF python-3.5. 2. Tar . XZCD Python-3.5. 2 . /configure--prefix=/usr/local/python3make make andinstall

  --prefix Specifying the installation path

  If you do not specify prefix,
  The executable file is placed by default in the/user/local/bin
  The library file is placed by default in the/usr/local/lib
  The configuration file is placed by default in the/usr/local/etc
  Other resource files are placed by default on the/usr/local/share
  To uninstall this program, either make uninstall in the original make directory (if the make file has specified uninstall), or go to the above directory to delete the relevant files by hand

  Specify prefix, delete a folder directly is enough.

• 4, setting environment variables

  Echo ' export path= $PATH:/usr/local/python3/bin ' >> ~/.BASHRC

  ~/.bashrc: This file contains bash information dedicated to your bash shell, and when you log in and every time you open a new shell, the file is read
  The above command implementation: will be export PATH=$PATH:/usr/local/python3/bin added to the end of the ~/.bashrc file

• 5, setting the directory

  Ln -sv/usr/local/python3/bin/python3. 5 /usr/bin/python3

  The purpose of this: to Python3 in any directory of the system, call the python3.5 command

Install PIP

• When the pyhon3.5 is installed, it already has a PIP and uses it.pip3

This is installed according to the website wiki.

• 1, install Setuptools. You need to install Setuptools before PIP is installed.

  wget https://Pypi.python.org/packages/source/s/setuptools/setuptools-5.7.zip-- No-check-certificateUnzip setuptools-5.7. Zip CD Setuptools-5.7Install

  wget wget https://pypi.python.org/packages/source/p/pip/pip-7.1.2.tar.gz#md5= 3823d2343d9f3aaab21cf9c917710196tar xvf pip-7.1. 2. Tar . GZCD pip-7.1. 2  Install

Install Python 3.5.2 (coexisting with Python2) under CentOS 6.5