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
oshayne anderson
839 Pointscant figure out this error
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.
def add(num1,num2):
num1=float(num1)+float(num2);
return num1;
try:
int(input("Please enter a number: "))
break
except ValueError:
return none
else:
return num1
1 Answer
oshayne anderson
839 Pointsdef add(num1,num2):
try:
num1=float(num1)+float(num2);
return num1
except ValueError:
return None
else:
print(num1)
i made a simple typo error "none should be None"