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861 Points"try:" and built function
I don't know how to implement try and def function in it. I was worked as it wrote in instruction and it's wrong. I can't fix it because the attached chunk of code is not my logic it is just a results of following the instruction.
def add(a, b):
try:
except ValueError:
return(none)
else:
return(float(a) + float(b))
1 Answer
Ryan S
27,276 PointsHi Juro,
When using a try:
block, you need to try to do something in it. In this case, you are trying to see if your arguments "a" and "b" can be converted into a float. If they cannot (if they are non-numeric strings, for example), you will get an error. This is where the except ValueError:
comes in, it will allow you to handle the error without breaking the code.
So the logic of the try/except blocks in this challenge would look something like this:
def add(num1, num2):
try:
# try to convert num1 and num2 into floats
except ValueError:
# If they cannot be converted and a ValueError is raised, handle it here.
else:
# If the try block passed and no error was raised, return whatever you need to here.
Hope this helps.