pex_standalone.sh

#!/bin/bash

# Checking if python is installed
if ! [ -x "$(command -v python)" ]; then
    echo 'Error: python is not installed. :(' >&2
    exit 1
fi

# Build directory
export OLDDIR=$PWD
export TMPDIR=`mktemp -d /tmp/pex-build.XXXXXX`

# Download and unzip pex
curl -L https://github.com/pantsbuild/pex/archive/master.zip -o "$TMPDIR/master.zip"
cd $TMPDIR
unzip master.zip
cd pex-master

# Installing pex in a local folder
mkdir ../lib/
PYTHONPATH=../lib/ python setup.py install --install-lib="../lib" --install-scripts="../scripts"

# Generating a pex from pex
cd ..
PYTHONPATH="$PWD/lib" "$TMPDIR/scripts/pex" pex requests -c pex -o "$OLDDIR/pex"

# Cleaning up
rm -rf $TMPDIR

###############
printf "\n\n\n\n\n"
printf "Congratz! Now you can use ./pex from this directory to create standalone python packages!\n"
printf "Docs: https://pex.readthedocs.io"
printf "\n\n"