How to Read a Text File in Python: Methods, Options, and What to Know First

Reading a text file in Python is one of the most fundamental file operations you'll encounter — and Python gives you several ways to do it. The method that works best depends on the file size, what you plan to do with the data, and how much control you need over the reading process.

The Core Concept: Opening a File Before Reading It

Before Python can read a file, it needs to open it. The built-in open() function handles this. It takes the file path as its first argument and an optional mode parameter. For reading text files, the mode is 'r' (read), which is actually the default — so you can often omit it.