Welcome to the Treehouse Community
Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.
Start your free trial
Anusha Singh
Courses Plus Student 22,106 Pointswhat do we really have to do?
the question is {' You're doing great! Just one more task but it's a bigger one. Right now, we turn everything into a float. That's great so long as we're getting numbers or numbers as a string. We should handle cases where we get a non-number, though. Add a try block before where you turn your arguments into floats. Then add an except to catch the possible ValueError. Inside the except block, return None. If you're following the structure from the videos, add an else: for your final return of the added floats'} The thing I don't understand is that, in the try block ( I have added a comment over there) What do we really have to do and how will we convert the arguments into floats. Please reply A.S.A.P
def add(num1, num2):
try:
//Over here
except ValueError:
return None
else:
return float(num1) + float(num2)
1 Answer
Philip Gales
15,193 PointsDo the addition in the try block
def add(num1, num2):
try:
num3 = float(num1) + float(num2)
except ValueError:
return None;
else:
return num3
Anusha Singh
Courses Plus Student 22,106 PointsAnusha Singh
Courses Plus Student 22,106 PointsThanks for the answer, I was in a desperate need of that.
Fernando Mendoza
Courses Plus Student 408 PointsFernando Mendoza
Courses Plus Student 408 PointsGot a question on that. Why on the return None;
why does it have to be a semicolon instead of a colon?