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Mit Sengupta
13,823 PointsWhat am I doing wrong here?
I keep getting an error that : ValueError: can not convert strings into float:'a'
here's my code:
try: float(a), float(b) except ValueError: return None else: return a + b
2 Answers
Bart Bruneel
27,212 PointsHello Mit,
I copy-pasted your last solution and added
def add(a,b):
in front. With the proper indentation the test passed for me. Maybe there is a problem with the indentation?
Bart Bruneel
27,212 PointsHello Mit,
you need to assign the result of calling float() back to the variable. Like this
a, b=float(a), float(b)
Try for example typing the following in the python shell:
A=5
float(A)
print(A)
You will see that at the end A is still an integer and not a float. If a would have been an integer you would still return an integer in the else-block.
Happy coding!
C H
6,587 PointsMutable and immutable are some good terms to review in regards to this.
Mit Sengupta
13,823 PointsHello Bart,
Thanks for helping out.
Here's my modified code and it is still not passing and still getting the same error as in past:
try: a, b = float(a), float(b) except ValueError: return None else: return a + b
Can you elaborate what am I doing wrong here?
Mit Sengupta
13,823 PointsMit Sengupta
13,823 PointsHello Bart, thank you for your help. It passed. I actually did not know how I needed to have a function and but now am through.