Code must be written in python

1. Write a python program A which runs on computer A. Program A reads a provided text file called Input.dat. You are first required to remove all spaces and punctuation characters from this text file and write it to a new file called Clean.dat, which should contain only lowercase letters.

2. Program A is required to generate 100 random characters which are written to a file key.dat.

3. Program A is then required to use the Vigenere cipher to encrypt the Clean.dat file with the key from the key.dat file and write the result to a file called Encrypt.dat.