Installing into a venv with setup.py setuptools

Question

I'm looking for a way to do a single-command installation of the whole python application into a venv by a specific path.

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I did some research about this topic and particularly in this thread there was a discussion about Makefile automation of the process. It also suggests to use pyinvoke , which appeared to me as a command line commands wrapped into python. So I currently wrote the following simple on-the-knee shell script:

install_venv.sh

#!/bin/bash

PYTHON="$1"
VENV_PATH="$2"
SOURCE_ROOT="$(dirname "$(readlink -f "$BASH_SOURCE")")"

echo "$PYTHON"
echo "$VENV_PATH"
echo "$SOURCE_ROOT"

cd $SOURCE_ROOT
$PYTHON -m venv $VENV_PATH
source "$VENV_PATH/bin/activate"
python -m pip install -r "$SOURCE_ROOT/requirements.txt"
python setup.py install

This script can be run, say as ./install_venv.sh python3.7 /tmp/test_venv . It does not handle the case if venv already exists by the path, but it can be extended in a straightforward way.

It looks like a very common task, so maybe setuptools already has a way to do so or writing such scripts is still necessary? Or what is the preferred way?

Answer 1

Not exactly sure what the true intention is...

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Maybe one of these tools can help:

• https://pypi.org/project/zapp/
• https://pypi.org/project/shiv/
• https://pypi.org/project/pex/
• https://pypi.org/project/pipx/

These tools allow you to install a Python application with all their required dependencies in an isolated way. Some are based on virtual environments some are not.

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Maybe you are looking for a tool such as poetry (or pipenv but not sure if it's still being maintained or not).

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More simple and straightforward, there is this plugin for setuptools :

• https://pypi.org/project/venvtools/