Vincent Balmori wrote:
Here is my updated code. As simple as this may be, I am a little lost again.
I appreciate the help and explanations to try to push me to get this on my
own, but at this point (especially after one week) this is when me being
given the answer with an explanation will help me much more, so I can
understand how it works better.
def ask_number(question, low, high, step = 1):
"""Ask for a number within a range."""
response = None
while response not in range(low, high, step):
response = int(input(question))
return response
You've got it now! Well done.
The trick is, you have to include the argument in the function parameter
list, AND give it a value. The part "step=1" inside the parentheses of
the "def" line does exactly that.
def ask_number(question, low, high, step=1):
....................................^^^^^^
Suppose you call the function like this:
ask_number("hello", 1, 10)
Python takes the arguments you give from left to right and assigns them
to the function parameters:
question = "hello"
low = 1
high = 10
step = ??? no value given
Because you haven't supplied a value for step, Python next looks for a
default, and finds the value 1, so it uses that instead of raising an
exception (and error message).
--
Steven
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