python try and finally code example

Example 1: try catch python

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

Example 2: try except python

try:
  print("I will try to print this line of code")
except ERROR_NAME:
  print("I will print this line of code if error ERROR_NAME is encountered")

Example 3: python finally

try:
   # Code to test / execute
   print('Test')
except (SyntaxError, IndexError) as E:  # specific exceptions
   # Code in case of SyntaxError for example
   print('Synthax or index error !')
except :
   # Code for any other exception
   print('Other error !')
else:
   # Code if no exception caught
   print('No error')
finally:
   # Code executed after try block (success) or any exception (ie everytime)
   print('Done')

# This code is out of try / catch bloc
print('Anything else')

Example 4: 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')

Example 5: python: raise error

class MyError(TypeError):
    pass

raise MyError('An error happened')