Python Programing Lab R16 EXERCISE

Python Programing Lab R16 EXERCISE - 7(a)

Aim:

Write a program to print each line of a file in reverse order.

Description:

Traverse each line of the file and we have to display every line contents in reverse order. Here, We are using the some of the basic methods of files and a string method strip().

Python provides basic functions and methods necessary to manipulate files by default. We can do most of the file manipulations using a file object.

open():

Before we can read or write a file, we have to open it using Python‟s built-in open(). This function creates a file object, which would be utilized to call other support methods associated with it.

The Syntax for opening a file object in Python is:

file_object = open(“Name of the file”,”Mode of the file”)

close():

This method of a file object flushes any unwritten information and closes the file object. Python automatically closes a file when the reference object of a file is reassigned to another file.

The Syntax for closing a file object in Python is:

file_object.close()

readlines():

This method will returns every line of the file as a list. The Syntax for readlines() in Python is:

file_lines = file_object.readlines()

strip():

This method returns a copy of the string in which all chars have been stripped from the beginning and end of the string (default whitespace characters).
The Syntax for strip() is Python is:

str.strip([chars])

Program: