python in terminal
first step-1 press Ctrl+Alt+t
second step-2 $-sudo apt-get install python //1st version
$-sudo apt-get install python2 //2nd version
$-sudo apt-get install python3 //3rd version with own requirment //begine installation python it take few minuts. //after completion
third step-3 $-sudo apt update
fourth step-4 write command $-python / python3 or python2 // which is install in your system