#!/usr/bin/env bash

PI=/opt
EXPECTED_VERSION="2.7.10"

get_source(){
	wget https://www.python.org/ftp/python/2.7.10/Python-2.7.10.tar.xz
	tar xvf Python-2.7.10.tar.xz
	cd Python-2.7.10
  }

install_configure(){
	./configure
	make
	make install
  }

remove(){
	rm $PI/Python-2.7.10.tar.xz
	rm -rf $PI/Python-2.7.10
	}

update_alternatives(){
	update-alternatives --install /usr/bin/python python /usr/local/bin/python 10
	}

version(){
	VERSION=$(python -c "print __import__('sys').version[0:6]")

	if [ "$VERSION" == "$EXPECTED_VERSION" ];
		then echo "Python $VERSION installed OK";
		else echo "FAIL";
	fi
	}

cd $PI
get_source
install_configure
update_alternatives
remove

version