pip3.sh

pip3 () {
		index=0
		PIP3_ARGS=( "$@" )

		for i in "$@"
		do
			if [[ $i == "install" || $i == "uninstall" ]]
			then
				echo "install/uninstall opt found"
				PIP3_INSTALL_FLAG=1
			elif [[ $i == "init" ]]
			then
				mkvirtualenv --python=`which python3` $(basename $PWD) && touch .pip3-init && workon $(basename $PWD)
				exit 0
			elif [[ $i == "--save" ]]
			then
				echo "save opt found"
				PIP3_SAVE_FLAG=1
				unset PIP3_ARGS[$index]
			fi

			let index++
		done

		if [[ $PIP3_INSTALL_FLAG == 1 && $PIP3_SAVE_FLAG == 1 ]]
		then
			$PIP3 ${PIP3_ARGS[@]} && $PIP3 freeze > requirements.txt
		else
			$PIP3 $*
		fi
}

# returns error on ZSH 
# pip3: no matches found: PIP3_ARGS[0]