Try Except in Python

Python exist exception Handling which more helpful in handling with error.

try and except

try excute the code which is inside the try block and if any error is found then then it return their respective error to the except block.

except block handle the error.

try:
    ................
    ................
    ................
except:
    ................
    ................
    ................

try:
   print(2/0)
except:
   print("We cannot divide by zero")

We cannot divide by zero

Here we cannot divide 4 as 0 so except section is excute.

More then one exception

We can use more then one exception in one time.

try:
    print(2/0)
except ZeroDivisionError:
    print("Zero Division Error")
else:
    print("Error But Zero Division Error")

  Zero Division Error

Types of Error

ZeroDivisionError when we divide any number with zero then this zero occur.
NameError occur when the error in name.
SyntaxError occur when the error in syntax.
TypeError occur when the error in type of variable like if we sum any character with number.

try-except with finally

finally block are always execute.

try:
    print(2/0)
except ZeroDivisionError:
    print("Zero Division Error")
except:
    print("Error But Zero Division Error")
finally:
    print("Finally always execute")

Zero Division Error
Finally always execute

try-except with else

else block are execute if no error is occur.

try:
    print("No Error")
except ZeroDivisionError:
    print("Zero Division Error")
except:
    print("Error But Zero Division Error")
else:
    print("There is no Error")

No Error
There is no Error