This is a py.test plugin that enables you to set environment variables in the pytest.ini file.

Install with pip:

pip install pytest-env

Uninstall with pip:

pip uninstall pytest-env

In your pytest.ini file add a key value pair with env as the key and the environment variables as a line separated list of KEY=VALUE entries. The defined variables will be added to the environment before any tests are run:

[pytest]
env =
    HOME=~/tmp
    RUN_ENV=test

You can use D: (default) as prefix if you don't want to override existing environment variables:

[pytest]
env =
    D:HOME=~/tmp
    D:RUN_ENV=test

Lastly, you can use existing environment variables using a python-like format:

[pytest]
env =
    RUN_PATH=/run/path/{USER}