Make sure thre is no whitespace in the given string. Will raise a
    ValueError if whitespace is detected

def _check_whitespace(string):
    """
    Make sure thre is no whitespace in the given string. Will raise a
    ValueError if whitespace is detected
    """
    if string.count(' ') + string.count('\t') + string.count('\n') > 0:
        raise ValueError(INSTRUCTION_HAS_WHITESPACE)