7. Input and Output — Python 3.14.0 documentation
5 days ago · There are several ways to present the output of a program; data can be printed in a human-readable form, or written to a file for future use. This chapter will discuss some of the …
3. An Informal Introduction to Python — Python 3.14.0 …
3 days ago · In the following examples, input and output are distinguished by the presence or absence of prompts (>>> and …): to repeat the example, you must type everything after the …
subprocess — Subprocess management — Python 3.14.0 …
4 days ago · Source code: Lib/subprocess.py The subprocess module allows you to spawn new processes, connect to their input/output/error pipes, and obtain their return codes.
fileinput — Iterate over lines from multiple input streams - Python
4 days ago · This module implements a helper class and functions to quickly write a loop over standard input or a list of files. If you just want to read or write one file see open().
io — Core tools for working with streams — Python 3.14.0 …
3 days ago · Source code: Lib/io.py Overview: The io module provides Python’s main facilities for dealing with various types of I/O. There are three main types of I/O: text I/O, binary I/O and …
4. More Control Flow Tools — Python 3.14.0 documentation
5 days ago · For Python, PEP 8 has emerged as the style guide that most projects adhere to; it promotes a very readable and eye-pleasing coding style. Every Python developer should read …
8. Errors and Exceptions — Python 3.15.0a1 documentation
Nov 3, 2025 · Errors detected during execution are called exceptions and are not unconditionally fatal: you will soon learn how to handle them in Python programs. Most exceptions are not …
31.5. pkgutil — Package extension utility - Python
Feb 7, 2018 · prefix is a string to output on the front of every module name on output. Note that this function must import all packages (not all modules!) on the given path, in order to access …
Changelog — Python 3.10.17 documentation
gh-121650: email headers with embedded newlines are now quoted on output. The generator will now refuse to serialize (write) headers that are unsafely folded or delimited; see …