Notes

try:
with open("testfile", "w") as fh:
fh.write("This is test file for exception handling!!")
print("File closed successfully.")
except IOError:
print("Error: can't find file or read data")


try:
with open("testfile", "r") as fh:
fh.write("This is test file for exception handling!!")
print("File closed successfully.")
except IOError:
print("Error: can't find file or read data")


def temp_convert(var):
try:
return int(var)
except ValueError as Argument:
print("The argument does not contain numbersn", Argument)

num = temp_convert("xyz")
print(num)


class NetworkError(RuntimeError):
def __init__(self, arg):
self.args = arg

try:
raise NetworkError("Bad hostname")
except NetworkError as e:
print(e.args)



class MyError(Exception):
def __init__(self, value):
self.value = value
def __str__(self):
return(repr(self.value))

try:
raise MyError(3*2)
except MyError as error:
print('A New Exception occurred: ', error.value)