Reading data and formatting information from Excel files

https://www.python-excel.org/ https://github.com/python-excel/xlrd

Implementation of XML Schema for Python

https://pypi.org/project/xmlschema/

XML parser that returns python dictionaries

https://pypi.org/project/xmltodict/

Python bindings for the xxHash library

https://github.com/ifduyue/python-xxhash

Linter for YAML files

https://github.com/adrienverge/yamllint

Yet another URL library

https://github.com/aio-libs/yarl

Yet Another SWF Parser

https://github.com/facundobatista/yaswfp

Interface to the Unicode Character Database

https://github.com/simoncozens/youseedee

Python module to retrieve stock quote data from Yahoo Finance

https://github.com/cgoldberg/ystockquote

Basic inter-process locks

https://pypi.org/project/zc.lockfile/

Pure python implementation of multicast DNS service discovery

https://github.com/python-zeroconf/python-zeroconf

Periodicly backup zfs filesystems to other locations

https://github.com/psy0rz/zfs_autobackup

Backport of pathlib-compatible object wrapper for zip files

https://github.com/jaraco/zipp

Zope Component Architecture

https://pypi.python.org/pypi/zope.component/

Zope Configuration Markup Language (ZCML)

https://pypi.org/project/zope.configuration/

Very basic event publishing system

https://pypi.python.org/pypi/zope.event/

Message Identifiers for internationalization

https://pypi.org/project/zope.i18nmessageid/

Interfaces for Python

https://pypi.python.org/pypi/zope.interface/

Zope Interface extension for defining data schemas

https://pypi.org/project/zope.schema/

Zopfli module for python

https://github.com/fonttools/py-zopfli

Py3c helps you port C extensions to Python 3

https://github.com/encukou/py3c

Seamless interoperability between C++11 and Python (cmake part)

https://pybind11.readthedocs.io/en/stable/ https://github.com/pybind/pybind11

Using nlohmann::json with pybind11

https://github.com/pybind/pybind11_json

Pybind11 bindings for the Abseil C++ Common Libraries

https://github.com/pybind/pybind11_abseil

Pybind11 bindings for Google's Protocol Buffers

https://github.com/pybind/pybind11_protobuf

Very basic wrapper for libcanberra

https://github.com/totdb/pycanberra

Python wrapper to libcangjie

https://cangjians.github.io/projects/pycangjie/

Common files for the Python bindings for the D-BUS messaging system

http://dbus.freedesktop.org/doc/dbus-python/

Common files for Python bindings for GObject Introspection

https://pygobject.gnome.org/

Analyzes python source code looking for bugs and signs of poor quality

https://www.pylint.org/ https://pylint.readthedocs.io/en/latest/ https://github.com/pylint-dev/pylint

The "meta-port" for the default version of Python interpreter

http://www.python.org/

GDSII manipulation library

https://pythonhosted.org/python-gdsii/

The "meta-port" for version 2 of the Python interpreter

http://www.python.org/

Interpreted object-oriented programming language

https://www.python.org/

The "meta-port" for version 3 of the Python interpreter

http://www.python.org/

Interpreted object-oriented programming language

https://www.python.org/

Interpreted object-oriented programming language

https://www.python.org/

Interpreted object-oriented programming language

https://www.python.org/

Interpreted object-oriented programming language

https://www.python.org/

Interpreted object-oriented programming language

https://www.python.org/

Collaborative, networked system to detect and block spam

http://pyzor.sourceforge.net/

Chinese PinYin and Bopomofo conversion library

https://github.com/pyzy/pyzy

Bittorrent client using Qt6 and libtorrent-rasterbar (web UI version)

https://www.qbittorrent.org/

Cross-platform crypto API for Qt

http://delta.affinix.com/qca/

Coroutines for Qt

https://github.com/danvratil/qcoro

Quick Database Manager

http://fallabs.com/qdbm/

PE2-like editor program for Unix

https://www.cc.ncu.edu.tw/~center5/product/qe/

QEMU CPU Emulator

https://www.qemu.org/

QEMU CPU Emulator - 7.X.X

https://www.qemu.org/

QEMU CPU Emulator (without X11) - 8.X.X

https://www.qemu.org/