Write a program that reads a text file and then create a new file where each character case is inverted.

Q. Write a program that reads a text file and then create a new file where each character‘s case is inverted.

Answer =

 

f1 = open("path.txt","r")
f2 = open("wala.txt","w")
data = f1.readlines()
for i in data :
    for j in i :
        if j.isupper() :
            f2.write(j.lower())
        elif j.islower() :
            f2.write(j.upper())
        else :
            f2.write(j)

f1.close()
f2.close()

Path.txt contain :-

This is Pathwalla Website

 

Output :-

Walla.txt contain :-

 tHIS IS pATHWALLA wEBSITE