Author, A.M. Kuchling,. Introduction: This article explains the new features in Python 2.1. While there aren’t as many changes in 2.1 as there were in Python 2.0, there are still some pleasant surp...

This module provides access to the Unix group database. It is available on all Unix versions. Availability: Unix, not Emscripten, not WASI. Group database entries are reported as a tuple-like objec...

Source code: Lib/xml/sax/__init__.py The xml.sax package provides a number of modules which implement the Simple API for XML (SAX) interface for Python. The package itself provides the SAX exceptio...

Asynchronous programming is different from classic “sequential” programming. This page lists common mistakes and traps and explains how to avoid them. Debug Mode: By default asyncio runs in product...

A memoryview object exposes the C level buffer interface as a Python object which can then be passed around like any other object.

This is the full Python grammar, derived directly from the grammar used to generate the CPython parser (see Grammar/python.gram). The version here omits details related to code generation and error...

“Cell” objects are used to implement variables referenced by multiple scopes. For each such variable, a cell object is created to store the value; the local variables of each stack frame that refer...

Source code: Lib/tomllib This module provides an interface for parsing TOML (Tom’s Obvious Minimal Language, https://toml.io). This module does not support writing TOML. This module defines the fol...

author, Brett Cannon,. Python 2 reached its official end-of-life at the start of 2020. This means that no new bug reports, fixes, or changes will be made to Python 2 - it’s no longer supported: see...

The modules described in this chapter implement internet protocols and support for related technology. They are all implemented in Python. Most of these modules require the presence of the system-d...