Pipfile
Pipfile is a configuration file used in Python development to manage project dependencies and environments, replacing the traditional requirements.txt file. It is part of the Pipenv tool, which combines package management (pip) and virtual environment (virtualenv) functionality into a single workflow. The Pipfile specifies dependencies, their versions, and sources, while a companion Pipfile.lock file ensures deterministic builds by locking exact versions.
Developers should use Pipfile when working on Python projects that require reproducible dependency management and isolated environments, such as web applications, data science pipelines, or microservices. It is particularly valuable in team settings or deployment scenarios where consistency across different machines is crucial, as it simplifies dependency resolution and version pinning compared to manual requirements.txt management.