Method to install python in ubuntu server environment

This article illustrates how to install python in an ubuntu server environment. To share for your reference, the details are as follows:

ubuntu 14.04 --16.04 is installed as python 2.7 by default

1. View the current version of python

$python --version

2. Upgrade to python3.ES14en version

$sudo add-apt-repository ppa:fkrull/deadsnakes # add 1 A source 
$sudo apt-get update Update the source list to get the latest version 
$sudo apt-get install python3 # use apt-get To install the 

3. After the completion of installation, there are two solutions to change the system environment.

Situation 1:

Using the alias alias, add the following statements to ~/.bashrc or ~/.bash_aliases

alias python=python3

Note: Change back to python2

alias python=python2

Situation 2, directly change the version to point to:

(1) View the current default version of the execution environment. If this does not include python, you can skip it.

android@local:/usr/local/bin$ls
apktoolpython

(2) Delete the current default python environment script

android@local:/usr/local/bin$ sudo rm /usr/local/bin/python
android@local:/usr/local/bin$ ls
apktool apktool.jar

(3) View the installed version of python included under the /usr/bin/ path.

ls /usr/bin/

(4) Switch the pointing of /usr/bin/ version below

android@local:/usr/local/bin$sudo ln -s /usr/bin/python3 /usr/local/bin/python

Note: Change back to python2

android@local:/usr/local/bin$sudo
ln -s /usr/bin/python2 /usr/local/bin/python

Other information:

If you encounter other problems and need to fix them, just download 1 again:

sudo apt-get
install --reinstall python-minimal
sudo apt-get
install --reinstall python2.7

Hopefully, this article has helped you with your Ubuntu server configuration.