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Python packaging utility library

Project description

travis versions pypi

Introduction

pkutils is a Python library that simplifies python module packaging. It is intended to be used in your package’s setup.py file.

With pkutils, you can

  • Parse requirements files
  • Determine your project’s development status
  • Read text files
  • and much more…

Requirements

pkutils has been tested and is known to work on Python 3.6, 3.7, and 3.8; and PyPy3.6.

Motivation

Python has a great packaging system, but to actually create and publish a package requires a lot of work to do well. I designed pkutils to provide many useful packaging use-cases out of the box. For example, to automatically include the contents of your requirements.txt file, simply add the following to setup.py:

import pkutils

...

requirements = list(pkutils.parse_requirements('requirements.txt'))
dev_requirements = list(pkutils.parse_requirements('dev-requirements.txt'))

setup(
    ...
    install_requires=requirements,
    tests_require=dev_requirements,
    ...)

Usage

pkutils is intended to be used directly as a Python library.

my_package/__init__.py

__version__ = '0.5.4'

__author__ = 'Reuben Cummings'
__description__ = 'My super awesome great package'
__email__ = 'reubano@gmail.com'
__license__ = 'MIT'
__copyright__ = 'Copyright 2015 Reuben Cummings'

You can set __title__ explicitly in your Python file. If you leave __title__ unset, pkutils will use:

  • The parent directory for paths ending in __init__.py.
  • The filename before the extention for other paths (e.g. my_package for my_package.py).

setup.py

import pkutils

try:
    from setuptools import setup
except ImportError:
    from distutils.core import setup

requirements = list(pkutils.parse_requirements('requirements.txt'))
dependencies = list(pkutils.parse_requirements('requirements.txt', True))
dev_requirements = list(pkutils.parse_requirements('dev-requirements.txt'))
readme = pkutils.read('README.rst')
module = pkutils.parse_module('my_package/__init__.py')
version = module.__version__
project = module.__title__
email = module.__email__
user = pkutils.get_user(email)

setup(
    name=project,
    version=version,
    description=module.__description__,
    long_description=readme,
    author=module.__author__,
    author_email=email,
    install_requires=requirements,
    tests_require=dev_requirements,
    dependency_links=dependencies,
    setup_requires=['pkutils'],
    url=pkutils.get_url(project, user),
    download_url=pkutils.get_dl_url(project, user, version),
    classifiers=[
        pkutils.get_license(module.__license__),
        pkutils.get_status(version),
        ...
    ],
    ...
)

This is then converted into something like the following:

...

setup(
    name='my_package',
    version='0.5.4',
    description='My super awesome great package',
    long_description='my_package: a super awesome great...',
    author='Reuben Cummings',
    author_email='reubano@gmail.com',
    install_requires=['semver==2.2.1'],
    tests_require=['semver==2.2.1', 'wheel==0.24.0', 'flake8==2.5.1', ...],
    dependency_links=[],
    setup_requires=['pkutils'],
    url='https://github.com/reubano/pkutils',
    download_url='https://github.com/reubano/pkutils/archive/v0.5.4.tar.gz',
    classifiers=[
        'License :: OSI Approved :: MIT License',
        'Development Status :: 4 - Beta',
        ...
    ],
    ...
)

Installation

(You are using a virtualenv, right?)

At the command line, install pkutils using either pip (recommended)

pip install -u pkutils

or easy_install

easy_install pkutils

Please see the installation doc for more details.

Project Structure

┌── CHANGES.rst
├── CONTRIBUTING.rst
├── LICENSE
├── MANIFEST.in
├── Makefile
├── README.md
├── dev-requirements.txt
├── helpers
│   ├── check-stage
│   ├── clean
│   ├── srcdist
│   ├── test
│   └── wheel
├── manage.py
├── pkutils.py
├── requirements.txt
├── setup.cfg
├── setup.py
├── tests
│   ├── __init__.py
│   └── standard.rc
└── tox.ini

Design Principles

  • minimize external dependencies
  • prefer functions over objects
  • keep the API as simple as possible

Scripts

pkutils comes with a built in task manager manage.py

Setup

pip install -r dev-requirements.txt

Examples

View available commands

manage

Show help for a given command

manage <command> -h

Run python linter and nose tests

manage lint
manage test

Or if make is more your speed…

make lint
make test

Contributing

Please mimic the coding style/conventions used in this repo. If you add new classes or functions, please add the appropriate doc blocks with examples. Also, make sure the python linter and nose tests pass.

Please see the contributing doc for more details.

License

pkutils is distributed under the MIT License.

Project details


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