pipenv-to-requirements 0.3.1

Generate requirements[-dev].txt from Pipfile using pipenv

Generate requirements[-dev].txt from Pipfile (using pipenv).

• Free software: MIT

• Documentation: https://pipenv-to-requirements.readthedocs.org/en/latest/

• Source: https://github.com/gsemet/pipenv-to-requirements

Rational

Pipfile and its sibling Pipfile.lock are clearly superior tools defining clear dependencies or a package. Pipfile is to be maintained by the package’s developer while Pipfile.lock represent a clear image of what is currently installed on the current system, guarantying full reproductibility of the setup. See more information about Pipfile format here. Most of the time, Pipfile.lock should be ignored (ie, not tracked in your git) for packages published on Pypi.

pipenv is a great tool to maintain Pipfile, but developers might be stuck with backward compatibility issues for tools and services that still use requirements.txt and does not know how to handle Pipfile or Pipfile.lock yet.

For examples:

• ReadTheDocs

• Pyup (experimental support is arriving )

• Any library that uses PBR (*)

• pip install (if you install a package with pip that does not have a requirements.txt, its dependencies won’t be installed, even if you use Pipfile)

(*): for the moment, I recommend to use generate at least requirements.txt (without version freeze) for the libraries using PBR that you publish on Pypi. This allows automatic installation of the very dependencies of your package. Without this file, your package will be installed by pip without its dependencies. Support in PBR may be added in the future (see this this patch ).

Usage

Just before building source/binary/wheel package of your python module, only of the following commands:

• To generate requirements files (ie, dependencies are described eventually by range):

  pipenv run pipenv_to_requirements

• To generate frozen requirements (ie, all dependencies have their version frozen):

  pipenv run pipenv_to_requirements -f

It will generate requirements.txt and, if applicable, requirements-dev.txt, in the current directory.

ReadTheDocs

Simply commit these files in your tree so that readthedocs, and ensure they are synchronized each time you change your Pipfile. Do not forget to ask ReadTheDocs to use requirements-dev.txt when building the documentation.

Contributing

Create your development environment with

$ make dev

Execute unit tests:

$ make test

Code formatter:

$ make style

Code Style Checks:

$ make check