IF and ELSE Exception in Python3

Question

I am trying to catch an exception for two boolean (for if and else separately).

this is what I am working on:

from math import *
from decimal import Decimal


def add(self, *args):
    try:
        if all(isinstance(n, int) for n in args):
            print(sum(int(n) for n in args))
        else:
            print(fsum(Decimal(n) for n in args))
    except (NameError, SyntaxError) as e:
        print("Error! {}".format(e))

def main():
    add(a)

if __name__ == '__main__': main()

Both if and else gives me two exceptions NameError and SyntaxError, if I give add(a) its giving me NameError as the exception. But the except is not catching the error.

How should I catch the exception for both of them separately?

`NameError` is not raised in the `if..else`, but in `add(a)`, which is in `main` function. You cannot catch an exception raised in the calling function, in the called function. — thefourtheye, Nov 04 '14 at 06:09

d-coder · Answer 1 · 2015-07-11T19:27:11.943

2

From what I understand I think you can try like this.

except NameError as e :
      print "Name error occured"
      print("Error! {}".format(e))
except SyntaxError as f:
      print "Syntax error occurred"
      print("Error! {}".format(f))

edited Jul 11 '15 at 19:27

answered Nov 04 '14 at 06:08

d-coder

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score 1 · Answer 2 · edited May 23 '17 at 12:14

Ok, person who gave me -1, just to let you know that it was an honest mistake and i am new to python. keeping that aside.

so just got to know that SyntaxError are thrown at compile time which cannot be caught at run time that is what -> [SyntaxError not excepting in Python 3 says

so I figured it and thanks to @thefourtheye

from math import *
from decimal import Decimal


    def add(*args):

        if all(isinstance(n, int) for n in args):
            print(sum(int(n) for n in args))
        else:
            print(fsum(Decimal(n) for n in args))


    def main():
        try:
            add(dfvdv)
        except NameError:
            print("Error!")

    if __name__ == '__main__': main()

IF and ELSE Exception in Python3

2 Answers2