The free-threading guide is a centralized collection of documentation and trackers around compatibility with free-threaded CPython for the Python open source ecosystem| py-free-threading.github.io
Source code: Lib/platform.py Cross platform: Java platform: Windows platform: macOS platform: iOS platform: Unix platforms: Linux platforms: Android platform: Command-line usage: platform can also ...| Python documentation
You can detect your operating system in Python using either os.name, sys.platform, or platform.system().| www.pythonmorsels.com
April 11, 2017 at 05:50| eli.thegreenplace.net
Source code: Lib/runpy.py The runpy module is used to locate and run Python modules without importing them first. Its main use is to implement the-m command line switch that allows scripts to be lo...| Python documentation
Hypothesis 6.x¶| hypothesis.readthedocs.io
Source code: Lib/pkgutil.py This module provides utilities for the import system, in particular package support.| Python documentation
In Python, all exceptions must be instances of a class that derives from BaseException. In a try statement with an except clause that mentions a particular class, that clause also handles any excep...| Python documentation
Last time, we built a hybrid concurrent.futures executor using inheritance. Today, we're building it again (twice!) using composition and functions only, to figure out which way is better and why. Consider this a worked example.| death and gravity
Options¶| www.sphinx-doc.org
Add a handler sending log messages to a sink adequately configured.| loguru.readthedocs.io
If you need to make a very simple command-line interface and it doesn't need to be friendly, you can read sys.argv to manually process the arguments coming into your program.| www.pythonmorsels.com
In the chapter on "Mutation-Based Fuzzing", we have seen how to use extra hints – such as sample input files – to speed up test generation. In this chapter, we take this idea one step further, by providing a specification of the legal inputs to a program. Specifying inputs via a grammar allows for very systematic and efficient test generation, in particular for complex input formats. Grammars also serve as the base for configuration fuzzing, API fuzzing, GUI fuzzing, and many more.Prereq...| www.fuzzingbook.org
This module provides an interface to the optional garbage collector. It provides the ability to disable the collector, tune the collection frequency, and set debugging options. It also provides acc...| Python documentation
Starting with the 3.13 release, CPython has experimental support for a build of Python called free threading where the global interpreter lock(GIL) is disabled. Free-threaded execution allows for f...| Python documentation
Emscripten is a complete open source compiler toolchain. It compiles C/C++ code into WebAssembly/JavaScript executables, for use in JavaScript runtimes, including browsers and Node.js. The Rust language also maintains an Emscripten target.| Python Enhancement Proposals (PEPs)
structlog Package: structlog.dev Module: Helpers that make development with structlog more pleasant. See also the narrative documentation in Console Output. structlog.testing Module: Helpers to tes...| structlog
Source code: Lib/traceback.py This module provides a standard interface to extract, format and print stack traces of Python programs. It is more flexible than the interpreter’s default traceback di...| Python documentation
The Python Development Mode introduces additional runtime checks that are too expensive to be enabled by default. It should not be more verbose than the default if the code is correct; new warnings...| Python documentation
In this step-by-step tutorial, you'll learn what scopes are, how they work, and how to use them effectively to avoid name collisions in your code. Additionally, you'll learn how to take advantage of a Python scope to write more maintainable and less buggy code.| realpython.com
In this tutorial, you'll learn about the basic data types that are built into Python, including numbers, strings, bytes, and Booleans.| realpython.com
How to invoke pytest¶| docs.pytest.org
Build Requirements: Features and minimum versions required to build CPython: A C11 compiler. Optional C11 features are not required., On Windows, Microsoft Visual Studio 2017 or later is required.,...| Python documentation
General configuration¶| www.sphinx-doc.org
In Python, the special name__main__ is used for two important constructs: the name of the top-level environment of the program, which can be checked using the__name__ == '__main__' expression; and,...| Python documentation
This module contains functions to dump Python tracebacks explicitly, on a fault, after a timeout, or on a user signal. Call faulthandler.enable() to install fault handlers for the SIGSEGV, SIGFPE, ...| Python documentation
Source code: Lib/smtplib.py The smtplib module defines an SMTP client session object that can be used to send mail to any internet machine with an SMTP or ESMTP listener daemon. For details of SMTP...| Python documentation
This section outlines high-level asyncio APIs to work with coroutines and Tasks. Coroutines, Awaitables, Creating Tasks, Task Cancellation, Task Groups, Sleeping, Running Tasks Concurrently, Eager ...| Python documentation
Source code: Lib/importlib/__init__.py Introduction: The purpose of the importlib package is three-fold. One is to provide the implementation of the import statement (and thus, by extension, the__i...| Python documentation
Source code: Lib/glob.py The glob module finds all the pathnames matching a specified pattern according to the rules used by the Unix shell, although results are returned in arbitrary order. No til...| Python documentation
Source code: Lib/zipapp.py This module provides tools to manage the creation of zip files containing Python code, which can be executed directly by the Python interpreter. The module provides both ...| Python documentation
Author, Guido van Rossum,. This article explains the new features in Python 3.0, compared to 2.6. Python 3.0, also known as “Python 3000” or “Py3K”, is the first ever intentionally backwards incomp...| Python documentation
As you probably know, the GIL stands for the Global Interpreter Lock, and its job is to make the CPython interpreter thread-safe. The GIL allows...| tenthousandmeters.com
Source code: Lib/urllib/request.py The urllib.request module defines functions and classes which help in opening URLs (mostly HTTP) in a complex world — basic and digest authentication, redirection...| Python documentation
Getting started¶| www.sphinx-doc.org
Python can be initialized with Py_InitializeFromConfig() and the PyConfig structure. It can be preinitialized with Py_PreInitialize() and the PyPreConfig structure. There are two kinds of configura...| Python documentation
Source code: Lib/warnings.py Warning messages are typically issued in situations where it is useful to alert the user of some condition in a program, where that condition (normally) doesn’t warrant...| Python documentation
A look into the implementation details of CPython's Global Interpreter Lock (GIL) and how they changed between Python 3.9 and the current development branch that will become Python 3.13.| stefan-marr.de
I came across situations in the past where I needed to modify a pipe just slightly. I immediately knew how to do it imperatively but could not develop a feasible chain of *nix utilities in a reasonable time. Here’s where my knowledge of a scripting language comes in handy.| Mátyás Budavári
Specification#| packaging.python.org
Source code: Lib/inspect.py The inspect module provides several useful functions to help get information about live objects such as modules, classes, methods, functions, tracebacks, frame objects, ...| Python documentation
概要 この記事は、2021 年 12 月 12 日 から 12 月 13 日にかけて開催された SECCON CTF 2021 の Writeup です。あと CTF Advent Calendar 2021 の 9 日目の記事です*1。 SECCON は長らく予選-本戦形式のオンサイト CTF として開催されてきました。しかし、社会情勢の影響もあり、去年に引き続き今年も Jeopardy 形式のオンライン CTF として開催されました。 自分は st98 さんを誘い、2 人チーム (o^...| keymoonの日記
Until now error messages haven’t been more than mentioned, but if you have tried out the examples you have probably seen some. There are (at least) two distinguishable kinds of errors: syntax error...| Python documentation
Source code: Lib/ensurepip The ensurepip package provides support for bootstrapping the pip installer into an existing Python installation or virtual environment. This bootstrapping approach reflec...| Python documentation
Source code: Lib/ctypes ctypes is a foreign function library for Python. It provides C compatible data types, and allows calling functions in DLLs or shared libraries. It can be used to wrap these ...| Python documentation
Source code: Lib/site.py This module is automatically imported during initialization. The automatic import can be suppressed using the interpreter’s-S option. Importing this module normally appends...| Python documentation
The CPython interpreter scans the command line and the environment for various settings. CPython implementation detail: Other implementations’ command line schemes may differ. See Alternate Impleme...| Python documentation
Source code: Lib/pickle.py The pickle module implements binary protocols for serializing and de-serializing a Python object structure. “Pickling” is the process whereby a Python object hierarchy is...| Python documentation
Source code: Lib/pprint.py The pprint module provides a capability to “pretty-print” arbitrary Python data structures in a form which can be used as input to the interpreter. If the formatted struc...| Python documentation
Python code in one module gains access to the code in another module by the process of importing it. The import statement is the most common way of invoking the import machinery, but it is not the ...| Python documentation
Binary Distribution¶A specific kind of Built Distribution that contains compiled| packaging.python.org
Source code: Lib/signal.py This module provides mechanisms to use signal handlers in Python. General rules: The signal.signal() function allows defining custom handlers to be executed when a signal...| Python documentation
The following sections describe the standard types that are built into the interpreter. The principal built-in types are numerics, sequences, mappings, classes, instances and exceptions. Some colle...| Python documentation
Editors, Elvis Pranskevichus < elvis@magic.io>, Yury Selivanov < yury@magic.io>,. This article explains the new features in Python 3.6, compared to 3.5. Python 3.6 was released on December 23, 2016...| Python documentation
Source code: Lib/typing.py This module provides runtime support for type hints. Consider the function below: The function surface_area_of_cube takes an argument expected to be an instance of float,...| Python documentation
>>>, The default Python prompt of the interactive shell. Often seen for code examples which can be executed interactively in the interpreter.,,..., Can refer to:- The default Python prompt of the i...| Python documentation
Editor, Raymond Hettinger,. This article explains the new features in Python 3.8, compared to 3.7. Python 3.8 was released on October 14, 2019. For full details, see the changelog. Summary – Releas...| Python documentation
Source code: Lib/timeit.py This module provides a simple way to time small bits of Python code. It has both a Command-Line Interface as well as a callable one. It avoids a number of common traps fo...| Python documentation
Post Mortem of a Sneaky Bug Whilst Using Python| tylerneylon.com
Source code: Lib/contextlib.py This module provides utilities for common tasks involving the with statement. For more information see also Context Manager Types and With Statement Context Managers....| Python documentation
This chapter explains the meaning of the elements of expressions in Python. Syntax Notes: In this and the following chapters, extended BNF notation will be used to describe syntax, not lexical anal...| Python documentation
If you quit from the Python interpreter and enter it again, the definitions you have made (functions and variables) are lost. Therefore, if you want to write a somewhat longer program, you are bett...| Python documentation
Entry points specification¶| packaging.python.org
Compound statements contain (groups of) other statements; they affect or control the execution of those other statements in some way. In general, compound statements span multiple lines, although i...| Python documentation
This module provides various time-related functions. For related functionality, see also the datetime and calendar modules. Although this module is always available, not all functions are available...| Python documentation
Source code: Lib/logging/__init__.py Important: This page contains the API reference information. For tutorial information and discussion of more advanced topics, see Basic Tutorial, Advanced Tutor...| Python documentation
Source code: Lib/os.py This module provides a portable way of using operating system dependent functionality. If you just want to read or write a file see open(), if you want to manipulate paths, s...| Python documentation
See Python Initialization Configuration for details on how to configure the interpreter prior to initialization. Before Python Initialization: In an application embedding Python, the Py_Initialize(...| Python documentation
This module provides access to the mathematical functions defined by the C standard. These functions cannot be used with complex numbers; use the functions of the same name from the cmath module if...| Python documentation
The Python interpreter has a number of functions and types built into it that are always available. They are listed here in alphabetical order.,,,, Built-in Functions,,, A, abs(), aiter(), all(), a...| Python documentation
Source code: Lib/struct.py This module converts between Python values and C structs represented as Python bytes objects. Compact format strings describe the intended conversions to/from Python valu...| Python documentation
Source code: Lib/pdb.py The module pdb defines an interactive source code debugger for Python programs. It supports setting (conditional) breakpoints and single stepping at the source line level, i...| Python documentation
Tools I use to find why my Python code is slow.| roman.pt
namedtuple has been around since forever, and over time, its convenience saw it used far outside its originally intended purpose. With dataclasses now covering part of those use cases, what should one use named tuples for? In this article, I address this question, and give a few examples from real code.| death and gravity
Building FunctionTrace, a graphical Python profiler| programsareproofs.com
