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

Posted by Mohamad Ismail
Mohamad Ismail
Courses Plus Student 428 Points

Stuck on Python Exceptions... help please!

Want to add an ValueError exception to the function add. I believe I have the correct format, yet I keep getting a can't convert an int error.

```def add(arg1,arg2): try: adding = arg1 + arg2 except ValueError: return None else: adding = float(arg1) + float(arg2) return adding

add(2,3)```

trial.py 
def add(arg1,arg2):
    try:
        adding = arg1 + arg2

    except ValueError:
        return None

    else:
        adding = float(arg1) + float(arg2)
        return adding
Bleza Takouda
Bleza Takouda
5,129 Points

It think you missed a point. From the challenge description the else block is supposed to return the result adding . It should work if you move/replace the addition line with float casting to the try block.

Enzie Riddle
.a{fill-rule:evenodd;}techdegree seal-36
Enzie Riddle
Front End Web Development Techdegree Graduate 19,278 Points

On the second part of the challenge, it has you convert your arguments to floats before adding them. It seems in your try block you have removed the floats. Your ValueError block is fine. All you are required to do in the else block is return your adding variable. Hope this helps! Reply if you have any more questions!

Mohamad Ismail
Mohamad Ismail
Courses Plus Student 428 Points

Thank you Bleza Takouda and Enzie Riddle ... I can see clearly now! Much appreciated.