try:
   You do your operations here;
   ......................
   Due to any exception, this may be skipped.
finally:
   This would always be executed.
   ......................

try:
   fh = open("testfile", "w")
   fh.write("This is my test file for exception handling!!")
finally:
   print ("Error: can\'t find file or read data")
   fh.close()

Error: can't find file or read data

try:
   fh = open("testfile", "w")
   try:
      fh.write("This is my test file for exception handling!!")
   finally:
      print ("Going to close the file")
      fh.close()
except IOError:
   print ("Error: can\'t find file or read data")

try:
   You do your operations here
   ......................
except ExceptionType as Argument:
   You can print value of Argument here...

# Define a function here.
def temp_convert(var):
   try:
      return int(var)
   except ValueError as Argument:
      print("The argument does not contain numbers\n",Argument)
# Call above function here.
temp_convert("xyz")

The argument does not contain numbers
invalid literal for int() with base 10: 'xyz'