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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...

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 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.

Source code: Lib/email/policy.py The email package’s prime focus is the handling of email messages as described by the various email and MIME RFCs. However, the general format of email messages (a ...

Source code: Lib/http/cookies.py The http.cookies module defines classes for abstracting the concept of cookies, an HTTP state management mechanism. It supports both simple string-only cookies, and...

Source code: Lib/html/parser.py This module defines a class HTMLParser which serves as the basis for parsing text files formatted in HTML (HyperText Mark-up Language) and XHTML. Example HTML Parser...

This module provides access to the select() and poll() functions available in most operating systems, devpoll() available on Solaris and derivatives, epoll() available on Linux 2.5+ and kqueue() av...

Source code: Lib/cgitb.py The cgitb module provides a special exception handler for Python scripts. (Its name is a bit misleading. It was originally designed to display extensive traceback informat...

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...