pypc 0.1.50

Python3 Package Creator

The Python3 Package Creator.

Pypc generates standard scaffolding and environment for a Python package.

• Populates the directory structure show in Usage

• –strict Installs virtualenv + creates venv directory

• Installs pyflakes, pep8 to venv

Installation

$ pip install pypc

Usage

Pypc can be used to create the basic structure of your python package. It uses the conventions and file structure outlined in https://packaging.python.org/en/latest/distributing.html. Options also exist to setup virtualenv, pip install dependencies and linters, such as pyflakes and pep8, and generate a pip freeze as requirements.txt.

$ pypc project && ls

CHANGES docs/ examples/ LICENSE MANIFEST.in project/ README.md setup.py tox.in

Alternatively, you can run in minimal mode with -m or –minimal. This only creates a README and setup.py and does not require network access (after pypc is installed).

# Minimal install

$ pypc -m project && ls

project/ MANIFEST.in README.rst setup.py setup.cfg

In both cases, a project/ subdirectory is populated with an __init__.py.

Finally, pypc provides a strict mode which installs and configures virtualenv and specified linters as dependencies. This may be combined with minimal mode:

$ pypc -sm project

Options

usage: pypc [-h] [-v] [-m] [-s] [–venv VENV] [–path PATH] [–author AUTHOR]

[–email EMAIL] [-V VERSION] [–desc DESC] [–url URL] [–rm README] [–fs FS] pkgname

If you only want to create a package with a setup.py (no virtual env, etc), use the -m or –minimal flag.

Note: -v outputs the version of pypc whereas -V or –version is used to

specify the initial version of the package you are creating. This is slightly confusion, and improvements are welcome.

Library

Pypc can be imported and used as library.

>>> from pypc.create import Package
>>> p = Package("pkgname", path="~/optional") # defaults to os.getcwd()
>>> p.new(**{'readme': 'README.md'}) # see pypc.settings.DEFAULTS for a list of default options (key,vals)

Philosopy

• KISS. Small and simple enough (i.e. Flask/webpy, not django) that it can be integrated into pip,

• Defaults. a default modus of operandi which works offline,

• PEP 20. “There should be one– and preferably only one –obvious way to do it.” In this respect, the general file structure should remain static and accept overrides/overloading of templates and if specific modules/packages (like flask) require specific (additional) file structure, a builder can import/bootstrap using pypc (as it would pip)

Standards

Resources about the standards and walkthroughs:

• http://guide.python-distribute.org/creation.html

• http://www.scotttorborg.com/python-packaging/minimal.html

• http://stackoverflow.com/questions/9411494/how-do-i-create-a-pip-installable-project

• http://docs.python-guide.org/en/latest/writing/structure/

• http://www.kennethreitz.org/essays/repository-structure-and-python

• http://as.ynchrono.us/2007/12/filesystem-structure-of-python-project_21.html

• http://www.jeffknupp.com/blog/2013/08/16/open-sourcing-a-python-project-the-right-way/

Alternatives

• https://github.com/audreyr/cookiecutter

• https://github.com/seanfisk/python-project-template - Git based, clone repo (requires altering git history)

Questions for you

1. Does the file structure pypc generates break any conventions?

2. Is the code for pypc readable/accessible?

3. Feature suggestions? (would love to auto-init venv)

Disclaimer

Pypc is a pre-alpha proof of concept. It’s slow as it installs pyflakes, pep8, virtualenv sets up a virtualenv, and then generates a freeze list of requirements). Right now there is little to no test-coverage; being it is a proof of concept, I’ll try to continue as TDD.

Discussion

Join the conversation! Other design considerations and details can be found on the pypa mailing list: https://groups.google.com/forum/#!searchin/pypa-dev/mek/pypa-dev/eaku1xvUVHU/Kbj_17sP23kJ