!link!: Pipfile

: Lists the core libraries your application needs to run in production.

(If comparing 3+ options in a table is needed, I can produce a comparison table.) Pipfile

This will add the requests library to your Pipfile . : Lists the core libraries your application needs

pipenv install pytest --dev

For years, developers had to maintain multiple files like requirements.txt and dev-requirements.txt to keep production and testing environments separate. The Pipfile solves this by combining everything into one place with clear advantages: Pipfile

Notice the output: Creating a virtualenv for this project... and Adding requests to Pipfile's [packages]...

[[source]] url = "https://pypi.org/simple" verify_ssl = true name = "pypi"