Oveload the input() builtin with a generator of strings

input_seq.py

import builtins
from unittest.mock import patch

class InputSeq():
    '''Emit elements of a sequence by invoking __call__'''
    def __init__(self, input_seq):
        self._input_seq = input_seq.copy()
        self._index = -1
    def __call__(self, _=None):
        self._index += 1
        return self._input_seq[self._index]

def input_seq(seq):
    def wf(f):
        with patch.object(builtins, 'input', InputSeq(seq)): 
            f()
    return wf