A function to check if a list (or generator/tuple/set/dict keys) is strictly increasing by some arbitrary number

increasing.py

def increasing(values, amount):
    """
    Checks if every value in a list of values increases by some arbitrary amount
    :param values: The list of values
    :param amount: The amount the values in the list should increase by
    :return: True or False
    """
    for current, future in zip(values, values[1:]):
        if current != future - amount:
            return False
    return True