pvw 0.0.4

a lightweight python venv wrapper to manage venvs

pvw

A lightweight (~10kB) python venv wrapper for virtual environment management.

Based on the built-in venv since python 3.6.

Pre-requirement

• Python >= 3.6
• python-venv

Installation

pip install pvw

Usage

usage: pvw [-h] [-v] {ls,config,activate,create,rm,mv,cp} ...

Manage python venv environments.

positional arguments:
  {ls,config,activate,create,rm,mv,cp}
    ls                  list all venvs.
    config              get or set pvw config
    activate            activate venv.
                        For Linux/Mac:
                        Use `source pvw activate ENV_NAME` to activate venv
                        or simply use `source pvw ENV_NAME`.

                        For Windows:
                        use `pvw activate ENV_NAME`
                        or a shorter `pvw ENV_NAME`
    create              create a new venv.
    rm                  remove a venv.
    mv                  move(rename) venv to another place.
    cp                  copy venv.

optional arguments:
  -h, --help            show this help message and exit
  -v, --version         show program's version number and exit

List venvs

pvw ls [--show-size]

List all created venvs, including name, path.

Adding --show-size modifier will show sizes, which may take a few seconds.

Name   Path                  Size
--------------------------------------
env1   C:\Users\venvs\env1   199.42MB
env2   C:\Users\venvs\env2   21.83MB
st     C:\Users\venvs\st     313.99MB
v2     C:\Users\venvs\v2     21.86MB
v3     C:\Users\venvs\v3     21.85MB

Get or set configs

Get or set the directory venv_path where venvs are stored.

pvw config get venv_path # get venv_path variable
pvw config set venv_path=PATH/TO/VENV # set venv_path

Create venv

pvw create ENV_NAME

Activate venv

For Windows, activate an existing venv with:

pvw activate ENV_NAME

or a shorter command:

pvw ENV_NAME

For Linux/Mac, activate venv with source command:

source pvw activate ENV_NAME

or for short:

source pvw ENV_NAME

Note: Shorter command only works on non-keywords venv names.

To deactivate, use deactivate inside environment. E.g. in Windows

(ENV_NAME) PS D:\Users> deactivate
PS D:\Users> 

Remove venv

pvw rm ENV_NAME_1 ENV_NAME_2 ENV_NAME_3 # support removing mutiple envs

Removal needs to be confirmed.

Move or rename venv

Move (or rename) env1 to a venv env2,

pvw mv env1 env2

Movement needs to be confirmed.

Note: the original venv would disappear.

Copy venv

Copy env1 to a new venv env2

pvw cp env1 env2

Build From Source

Using Makefile

cd src/pvw
make
sudo make install

The executable binary pvw and pvw_py will be installed in your /usr/bin/ directory.

Note that pyinstaller and termcolor will also be installed.

Using setuptools

pip install --upgrade build setuptools # skip if already installed
python -m build
pip install dist/pvw-x.x.x.tar.gz # x.x.x is the built version of pvw

To-do list

• Customize venv path
• init command for setting up a project
• Simplify activate command in Linux/Mac OS
• Enable setting default venv in terminal
• Add unit tests
• Support specific python version (if installed)