def get_string_between(start, stop, s):
    """Search string for a substring between two delimeters. False if not found."""
    i1 = s.find(start)
    if i1 == -1:
        return False
    s = s[i1 + len(start):]
    i2 = s.find(stop)
    if i2 == -1:
        return False
    s = s[:i2]
    return s