py

library with cross-python path, ini-parsing, io, code, log facilities

py Permissive license MIT license Abandoned v1.11.0 released 2021-11-04

Install

py on PyPI

pip

pip install py

uv

uv add py

poetry

poetry add py

Package facts

License	MIT license (permissive)
Python support	supports the current Python release (>=2.7, !=3.0., !=3.1., !=3.2., !=3.3., !=3.4.*)
Install friction	low — pure-Python wheel
Runtime dependencies	none
Maintenance	abandoned — 1,743 days since the last release
First released	2008-03-30
Popularity	one of the top 1,000 most-downloaded packages on PyPI (30-day window, as of 2026-08-13)
Known vulnerabilities	none known (OSV.dev, checked 2026-08-13)

Evidence: py-1.11.0-py2.py3-none-any.whl

Development Status :: 6 - MatureIntended Audience :: DevelopersLicense :: OSI Approved :: MIT LicenseOperating System :: MacOS :: MacOS XOperating System :: Microsoft :: WindowsOperating System :: POSIXProgramming Language :: PythonProgramming Language :: Python :: 2Programming Language :: Python :: 2.7Programming Language :: Python :: 3Programming Language :: Python :: 3.10Programming Language :: Python :: 3.5Programming Language :: Python :: 3.6Programming Language :: Python :: 3.7Programming Language :: Python :: 3.8Programming Language :: Python :: 3.9Programming Language :: Python :: Implementation :: CPythonProgramming Language :: Python :: Implementation :: PyPyTopic :: Software Development :: LibrariesTopic :: Software Development :: TestingTopic :: Utilities

About py

from the package's own PyPI description — quoted content, verbatim

.. image:: https://img.shields.io/pypi/v/py.svg :target: https://pypi.org/project/py

.. image:: https://img.shields.io/conda/vn/conda-forge/py.svg :target: https://anaconda.org/conda-forge/py

.. image:: https://img.shields.io/pypi/pyversions/py.svg :target: https://pypi.org/project/py

.. image:: https://github.com/pytest-dev/py/workflows/build/badge.svg :target: https://github.com/pytest-dev/py/actions

NOTE: this library is in maintenance mode and should not be used in new code.

The py lib is a Python development support library featuring the following tools and modules:

py.path: uniform local and svn path objects -> please use pathlib/pathlib2 instead
py.apipkg: explicit API control and lazy-importing -> please use the standalone package instead
py.iniconfig: easy parsing of .ini files -> please use the standalone package instead
py.code: dynamic code generation and introspection (deprecated, moved to pytest as a implementation detail).

NOTE: prior to the 1.4 release this distribution used to contain py.test which is now its own package, see https://docs.pytest.org

For questions and more information please visit...

Read as markdown · JSON record · Homepage

AI interpretation — verify before relying

AI-generated interpretation of the package facts above; every digit, version, license, or vulnerability id it cites is grounded in the facts already shown on this page

The py library provides cross-platform path manipulation, INI file parsing, code introspection, and other Python development utilities, though it is now in maintenance mode with most functionality superseded by modern alternatives.

Installation is frictionless with no runtime dependencies, but the package is in abandoned maintenance status as of 1743 days since last release, signaling it should not be used in new code.

MIT license permits commercial and private use with minimal restrictions, though the permissive treatment is moot given the package's maintenance-mode status.

Usage

pip install py==1.11.0
import py
path = py.path.local('.')

Package is in maintenance mode and deprecated; most functionality has been moved to standalone packages (pathlib for paths, pytest for code introspection) or should be replaced with modern alternatives.

Verdict: The py library is a mature, permissively licensed package with zero known vulnerabilities and low install friction, but it has been abandoned for 1743 days and explicitly marked as unsuitable for new code. Its core functionality has been superseded by pathlib, standalone apipkg and iniconfig packages, and pytest internals. Use only for maintaining legacy code.

Needs verification

Whether any of py's submodules (py.path, py.apipkg, py.iniconfig, py.code) remain actively used in production systems despite deprecation guidance.
Current adoption rate among legacy projects still depending on py versus those that have migrated to modern replacements.

cross-platform path utilitiesini file parsing pythoncode introspection utilitiespython development support librarylegacy path objects