Delete File Data.py

import re

#individual word search then whole line delete
with open("put.txt", "r") as f :
    lst = f.readlines()
    for i, j in enumerate(lst) :
        if re.search(".*Dhaka.*", j) :
            lst[i] = ""

with open("put.txt", "w") as f :
    f.writelines(lst)


#individual line delete
print("\nEnter Line Number :: ")
n = int(input())

with open("put.txt", "r") as f :
    lst = f.readlines()
    for i, j in enumerate(lst) :
        if i == n-1 :
            lst[i] = ""

with open("put.txt", "w") as f :
    f.writelines(lst)

#All File Data Delete
with open("put.txt", "r") as f :
    lst = f.readlines()
    for i, j in enumerate(lst) :
        lst[i] = ""

with open("put.txt", "w") as f :
    f.writelines(lst)