Install Python environment under Linux __linux

1. Install Python3 under Linux

A, prepare the compilation environment (if the environment is not correct, you may encounter various problems, such as wget can not download https linked files)

1 2	Yum Groupinstall "Development Tools" yum install zlib-devel bzip2-devel openssl-devel ncurses-devel

2 Download Python3.5 Code pack

wget  Https://www.python.org/ftp/python/3.5.0/Python-3.5.0.tar.xz

In the installation package, there is a readme file, which has written how to install

Tar jxvf  python-3.5.0.tar.xz
cd Python-3.5.0
./configure--prefix=/usr/local/python3 make
& & Make Install

Make a soft chain:

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

The installation was successful.

If prompted: Ignoring Ensurepip Failure:pip 7.1.2 requires SSL/TLS

This is the reason for not installing or upgrading OENSSL:

Yum Install Openssl-devel

(OpenSSL installed under Ubuntu 14.04)

Repeat the compilation scheme again python3.5:

The final is as follows:

Prompts to successfully install pip-7.12 and setuptools at the same time.

Both PIP3 and PIP hint that there is no error.

Make a soft chain:

Ln-s/usr/local/python3/bin/pip3.5/usr/local/bin/pip

Ln-s/usr/local/python3/bin/easy_install/usr/local/bin/easy_install

Upgrade PIP to latest version:

Pip Install--upgrade pip

PIP installation succeeded.