Error python : [ZeroDivisionError: division by zero]

Question

I faced an error when I run my program using python: The error is like this:

ZeroDivisionError: division by zero

My program is similar to this:

In [55]:

x = 0
y = 0
z = x/y
---------------------------------------------------------------------------
ZeroDivisionError                         Traceback (most recent call last)
<ipython-input-55-30b5d8268cca> in <module>()
      1 x = 0
      2 y = 0
----> 3 z = x/y

ZeroDivisionError: division by zero

Thus, I want to ask, how to avoid that error in python. My desired output is z = 0

Answer 1

Catch the error and handle it:

try:     z = x / y except ZeroDivisionError:     z = 0 

Or check before you do the division:

if y == 0:     z = 0 else:     z = x / y 

The latter can be reduced to:

z = 0 if y == 0 else (x / y)  

Or if you're sure y is a number, which implies it`s truthy if nonzero:

z = (x / y) if y else 0 z = y and (x / y)   # alternate version 

Answer 2

Returning zero instead of the division by zero error can be accomplished with a Boolean operation.

z = y and (x / y)

Boolean operations are evaluated left to right and return the operand, not True or False.

If y is 0, the value returned is y. If y is different from 0, the right side of the operation is executed and the value returned is x / y