All integers are implemented as “long” integer objects of arbitrary size. On error, most PyLong_As* APIs return(return type)-1 which cannot be distinguished from a number. Use PyErr_Occurred() to d...

This module provides basic mechanisms for measuring and controlling system resources utilized by a program. Availability: Unix, not WASI. Symbolic constants are used to specify particular system re...

For applications that require data compression, the functions in this module allow compression and decompression, using the zlib library. The zlib library has its own home page at https://www.zlib....

Source code: Lib/email/headerregistry.py Headers are represented by customized subclasses of str. The particular class used to represent a given header is determined by the header_factory of the po...

Source code: Lib/graphlib.py Exceptions: The graphlib module defines the following exception classes:

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...

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...

The Python interpreter can get its input from a number of sources: from a script passed to it as standard input or as program argument, typed in interactively, from a module source file, etc. This ...

The main direction for asyncio extending is writing custom event loop classes. Asyncio has helpers that could be used to simplify this task. Writing a Custom Event Loop: asyncio.AbstractEventLoop d...

The PyEval_GetFrame() and PyThreadState_GetFrame() functions can be used to get a frame object. See also Reflection. Internal Frames: Unless using PEP 523, you will not need this.