python - How to remove EOFError: EOF when reading a line?

Question

Basically, I have to check whether a particular pattern appear in a line or not. If yes, I have to print that line otherwise not. So here is my code:

p = input()
 while 1:
   line = input()
   a=line.find(p)
   if a!=-1:
     print(line)
   if line=='':
     break

This code seems to be good and is being accepted as the correct answer. But there's a catch. I'm getting a run time error EOFError: EOF when reading a line which is being overlooked by the code testing website.

I have three questions: 1) Why it is being overlooked? 2) How to remove it? 3) Is there a better way to solve the problem?

Answer 1

Nothing is overlooked. As per the documentation input raises an EOFError when it hits an end-of-file condition. Essentially, input lets you know we are done here there is nothing more to read. You should await for this exception and when you get it just return from your function or terminate the program.

def process_input():
    p = input()
    while True:
        try:
            line = input()
        except EOFError:
            return
        a = line.find(p)             
        if a != -1:
            print(line)
        if line=='':
            return