How to Read and Write Files in Python#

This guide explains how to read and write files in Python.
It is organized around the most commonly used example codes.

1. Reading a Text File - Reading the Entire File#

You can create a file stream using open("abcd.txt", "r") and read the entire file at once with .read().
(Creating a file stream means establishing a link to access the file.)
Here, "abcd.txt" refers to the full path of the file to be read, and you can use either an absolute path or a relative path.
"r" stands for read mode.