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Python Python Basics (2015) Logic in Python Try and Except

Raman Chandran
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Raman Chandran
Full Stack JavaScript Techdegree Student 7,664 Points

trial.py

I don't understand why this is not processing and saying Bummer Try Again???

def add(first, second): try: total = float(first) + float(second) except ValueError: return None else: return total

trial.py
def add(first, second):
try:
    total = float(first) + float(second)
except ValueError:
    return None
else:
    return total

2 Answers

Hey there!

Nice job thinking this through! You code is really correct, but since Python is really picky about indentation (spacing), Python will spit out an error at you because you didn't add four spaces to every single line except the def add(first, second): line. If you add the spaces, it will make the code below the first line "inside" the definition.

def add(first, second):
    try:
        total = float(first) + float(second)
    except ValueError:
        return None
    else:
        return total

I hope this helps. ~Alex

If this answered your question, please mark it as a Best Answer! Thank you!

No problem. :)

Just remember to properly indent your code! :wink: