if error python code example

Example 1: throwing an exception python

raise Exception("message")

Example 2: exception pyton print

except Exception as e: print(e)

Example 3: python if statement

usrinput = input(">> ")
if usrinput == "Hello":
  print("Hi")
elif usrinput == "Bye":
  print("Bye")
else:
  print("Okay...?")

Example 4: try catch in python

try:
  print("try to run this block")
except:
  print("run this bock if there was error in earlier block")

Example 5: how to use except statement in python

>>> def divide(x, y):
...     try:
...         result = x / y
...     except ZeroDivisionError:
...         print("division by zero!")
...     else:
...         print("result is", result)
...     finally:
...         print("executing finally clause")
...
>>> divide(2, 1)
result is 2.0
executing finally clause
>>> divide(2, 0)
division by zero!
executing finally clause
>>> divide("2", "1")
executing finally clause
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<stdin>", line 3, in divide
TypeError: unsupported operand type(s) for /: 'str' and 'str'

Example 6: catch error data with except python

import sys
try:
	S = 1/0 #Create Error
except: # catch *all* exceptions
    e = sys.exc_info()
    print(e) # (Exception Type, Exception Value, TraceBack)

############
#    OR    #
############
try:
	S = 1/0
except ZeroDivisionError as e:
    print(e) # ZeroDivisionError('division by zero')