[PYTHON] A shell script to make sure you don't forget the pipenv shell again

Introduction

* pipenv, are you using it? *

pipenv is a tool that easily and automatically manages packages for the project and builds a virtual environment. It's a very convenient one that also works with pyenv.

But do you have such an experience?

When I ran it, an error occurred, so I put it in with pip, but it just didn't enter the virtual environment ...

I do a lot.

Therefore!

I wrote a shell script that pipenv shell when cd where the Pipfile is

Had made

~/.bash_autopipenv

#!/bin/bash

function ispipenv()
{
if [ "$PIPENV_ACTIVE" == 1 ]; then
  :
else
  if [ -e "Pipfile" ]; then
      pipenv shell
  fi
fi
}

function pipenv_cd()
{
  \cd $@ && ispipenv
}

alias cd='pipenv_cd'

The points are the following parts.

if [ "$PIPENV_ACTIVE" == 1 ]; then
   ...

When you enter the virtual environment, you are using the environment variable PIPENV_ACTIVE to be defined. Since PIPENV_ACTIVE is not defined if you are not in the virtual environment, it is evaluated with "$ PIPENV_ACTIVE" to avoid errors. Now the pipenv shell will not run when you are in the virtual environment.

Also, if \ cd in pipenv_cd is changed to cd, Note that pipenv_cd is called in pipenv_cd and pipenv_cd is called in it.

Always load

If you add the following to .bash_profile or .bashrc, it will always be read, so you will not forget to run pipenv shell: ok_hand:

if [ -f ~/.bash_autopipenv ]; then
  . ~/.bash_autopipenv
fi

Summary

--Fun to create your own bash with shellscript: innocent: ――Next, don't forget to exit!