Matt Fuller
941 PointsPractice Creating and Using Functions in Python  task two
I really don't get this one. Completely new to coding and struggling to remember it all, can anyone just walk me through
1 Answer
Chris Freeman
Treehouse Moderator 57,148 PointsThe task asks Create a function that determines if a specific value is odd
. Specifically:

Create a function. This is done by include the keywork
def
in front of a variable and including a parameter list in parens, followed by a colon
def function_name(parameters):
 Name the function
is_odd
def is_odd(parameters):

have it declare a single parameter. This can be any variable name, let's use
value
def is_odd(value):

return
True
if the value is not divisible by 2. The Python way to check if a value is even is to use the modulo operator % with 2. A zero result is even, a one result is odd
is_odd_value = False
if value %2 == 1:
is_odd_value = True
 Return result
return is_odd_value
Time to simplify the code
Instead of checking a Boolean (true/false) statement to set a Boolean value, just use the Boolean value directly
is_odd_value = value %2 == 1
return is_odd_value
But since value % 2
returns either a 0 or a 1, and 0 is equivalent to False
and 1 is equivalent to True
you can use the results of the modulo directly to get an even result.
# adding not and changing 0 to 1
is_odd_value = not value %2 == 0
# or, simply
is_odd_value = not value %2
Returning the result:
# Return results
return is_odd_value
# or simply
return not value % 2
Post back if you need more help. Good luck!!
Matt Fuller
941 PointsThank you so much for taking the time to write that explanation out, it really helped me solidify my understanding!
KRIS NIKOLAISEN
Pro Student 50,935 PointsKRIS NIKOLAISEN
Pro Student 50,935 PointsThere is only one task. What is task two?