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The open () function opens a file. You must use "r" mode to read a file. The read (), readline (), readlines () functions return the contents of an open file.
Python is a useful programming language to use if you want to process data. The language has several built-in functions that make it easier to read, write, and manipulate data or files.
Suppose you have a list of employee names and you want to check if a user’s name is there. You can save the list of employee names as a file. Then you can use Python to read this file and check if the employee name is stored in this file.
In this tutorial, we’ll explore the basics of reading files in Python. To get started, we’ll discuss how to open and access a file. We will therefore explore how to read a file in Python.
Open a file to read it in Python
The first step in reading a file in Python is to open the file you want to read. You need to tell Python the name of the file you want to open.
To read a file, you must first tell Python where that file is located. You can do this by specifying the path to the file and declaring it in a variable.
Here is the syntax for opening a file in Python:
Our code opens a file in the path we defined in the variable " filename " .