Simple python environment setup.

Write down package requirements inside requirements.py it will be installed via pip automatically. You can declare additional packages for dev environments and minimal python interpreter version required.

To run use

python -m py_prep -init

Available options:

-init - initializes environment and installs required packages

-install - installs required packages, requires valid environment

-dev - installs declared dev packages

-no-venv - do not require virtial environment - uses current environment for all operations

-check - checks if current enfironment meets requirements