Python Installation

install_py.sh

#!/bin/bash

INSTALL_PATH="$HOME/python"
TEMP_PATH="$INSTALL_PATH/tmp"

display_message() {
  printf "\n $1 \n"
}

check_status() {
  if [ $1 == 0 ]; then
    return
  fi
  display_message "Error During Last Step. Step : $2"
  if [ "$3" ]; then 
    display_message "Log File : $3"
  fi
  exit 1
}

create_necessary_dirs() {
  mkdir -p $TEMP_PATH
}

# Lets cleanup the Existing Installation if Any.
clean_old_install() {
  if [ ! -d "$INSTALL_PATH" ]; then
    display_message "Missing Installation Directory $INSTALL_PATH"
    return
  fi
  sudo rm -rf $INSTALL_PATH
}

get_and_install_easy_install() {
  cd $TEMP_PATH
  wget --no-check-certificate https://bootstrap.pypa.io/ez_setup.py
  "$INSTALL_PATH/bin/python" ez_setup.py > $TEMP_PATH/easy_install.log
}

install_and_update_pip() {
  cd "$INSTALL_PATH/bin"
  ./easy_install pip
  ./pip install --upgrade pip
}

setup_python() {
  cd $TEMP_PATH
  wget http://www.python.org/ftp/python/$1/Python-$1.tgz
  tar zxfv Python-$1.tgz > $TEMP_PATH/extract.log
  find $INSTALL_PATH -type d | xargs chmod 0755
  cd Python-$1
  ./configure --prefix=$INSTALL_PATH "${@:2}" > $TEMP_PATH/configure.log
  check_status $? "Configure" "$TEMP_PATH/configure.log"
  make > $TEMP_PATH/make.log
  check_status $? "Make" "$TEMP_PATH/make.log"
  make install > $TEMP_PATH/make_install.log
  check_status $? "Install" "$TEMP_PATH/make_install.log"
}

while getopts ":p" optname
do
  case "$optname" in
    p)
      $INSTALL_PATH=$OPTARG
      ;;
  esac
done

clean_old_install

create_necessary_dirs

setup_python ${@:$OPTIND}

get_and_install_easy_install

install_and_update_pip