How to read a file in Python

To open and read a file using the Python language

1. Open the file with the open() statement and the r (read) attribute. The method assigns the file to an object (variable) of the program.

   f = open('nomefile.txt', 'r')

2. Read one record at a time using the readline() method.

   record = f.readline()

3. When finished, close access to the file using the close() method.

   f.close()

   This allows other programs to access the file.

Examples

Example 1

This script opens and reads the first three records of a file.

f = open("nomefile","r")
print(f.readline())
print(f.readline())
print(f.readline())
f.close()