pipreq 0.4.4

Manages pip requirements files for multiple environments, e.g. production and development

*THIS PROJECT IS NOW DEFUNCT!*

Please use pipwrap instead: https://pypi.python.org/pypi/pipwrap

pipreq simplifies handling Python project requirements across multiple environments. pip freeze > requirements.txt gets your project started, but do you really want mock, coverage, etc. installed on your production server? Maybe you want to upgrade all your test requirements, but not your production requirements. If you’ve ever found yourself sifting through the output of pip freeze trying to figure out what packages you’ve installed but didn’t yet add to one of your requirements files, then pipreq is the tool for you.

Features

• Inspect a list of packages and create or update a requirements rc file

• Generate a set of requirements files from an rc file

• Upgrade all specified packages to the latest versions

• Remove stray packages in virtualenv

Installation

You can get pipreq from PyPI with:

pip install pipreq

The development version can be installed with:

pip install -e git://github.com/jessamynsmith/pipreq.git#egg=pipreq

If you are developing locally, your version can be installed from the working directory with:

python setup.py.install

Usage

pipreq uses an rc file to track requirements. You create a section for each requirements file, and (if desired) select one section to be shared. The default configuration is as follows:

# .requirementsrc
[metadata]
shared = common

[common]

[development]

[production]

This would result in the following requirements directory structure:

requirements/
    common.txt
    development.txt
    production.txt

where development.txt and production.txt both include the line “-r common.txt”

Getting Started with pipreq

1. (Optional) Create an empty .requirementsrc file with your desired metadata and sections

2. Interactively populate .requirementsrc file from currently installed packages:

   pip freeze | pipreq -c

3. Generate requirements files from .requirementsrc file:

   pipreq -g

4. Create a top-level requirements.txt file that points to your production requirements, e.g. “-r production.txt”

Keeping requirements up to date with pipreq

1. Interactively update .requirementsrc file from currently installed packages:

   pip freeze | pipreq -c

2. Re-generate requirements files from .requirementsrc file:

   pipreq -g

3. Upgrade all packages to latest available versions:

   cat requirements/development.txt | pipreq -U

3. Remove stray packages in virtualenv:

   cat requirements/*.txt | pipreq -x

Development

Fork the project on github and git clone your fork, e.g.:

git clone https://github.com/<username>/pipreq.git

Create a virtualenv and install dependencies:

mkvirtualenv pipreq
pip install -r requirements/package.txt -r requirements/test.txt

Run tests with coverage (should be 99%) and check code style:

coverage run -m nose
coverage report -m
flake8

Verify all supported Python versions:

pip install tox
tox

Install your local copy:

python setup.py.install