Centos Python3 Installation Coexistence

Installation of python3.6 may use dependencies

yum install openssl-devel bzip2-devel expat-devel gdbm-devel readline-devel sqlite-devel

Download python3.6 Compilation Installation

Download https://www.python.org on the Python website

To download the latest version of the source code, use make Altinstall, if you use makes install, there will be two different versions of Python in the system in the/usr/bin/directory. This will lead to a lot of problems and is not easy to handle.

wget https://www.python.org/ftp/python/3.7.0/Python-3.7.0.tar.xzxz -d Python-3.7.0.tgz.xztar -xvf  Python-3.7.0.tgzcd  Python-3.7.0

Installing the Python3.6 into the/usr/local directory

./configure --prefix=/usr/localmakemake altinstall

Error handling:

• Zipimport.importerror
  

• Yum Install zlib Zlib-devel

• Configure:error:no acceptable C compiler found in $PATH
  
  Yum Install GCC

• **modulenotfounderror:no module named ' _ctypes ' * *
  

Execution file for python3.6 program:/usr/local/bin/python3.6

python3.6 application directory:/usr/local/lib/python3.6

PIP3 execution File:/usr/local/bin/pip3.6

Pyenv3 execution File:/usr/local/bin/pyenv-3.6

Change/usr/bin/python Link

cd/usr/binln -s /usr/local/bin/python3.6 /usr/bin/python3ln -s /usr/local/bin/pip3.6 /usr/bin/pip3

Centos Python3 Installation Coexistence