如何在Python中捕获finally语句中异常消息

class SelfDefinedException(Exception): pass

try:
    message = "Hello World!"
    raise SelfDefinedException(message)
except MyDefinedException, e:
    print "MyDefinedException", e

class SelfDefinedException(Exception): pass

try:
    message = "Hello World!"
    raise SelfDefinedException(message)
except MyDefinedException, e:
    print "MyDefinedException", e
finally:
    # What goes here? So I can see what went wrong?

class SelfDefinedException(Exception): pass

try:
    message = "Hello World!"
    raise SelfDefinedException(message)
except MyDefinedException, e:
    print "MyDefinedException", e
except Exception, e:
    # Hopefully catches all messages except for the one of MyDefinedException
    print "Unexpected Exception raised:", e

try:
    foo()
except:
    print sys.exc_info()
    raise

caught_exception=None
try:
  x = 10/0
  #return my_function()
except Exception as e:
  caught_exception = e
finally:
  if caught_exception:
     #Do stuff when exception
     raise # re-raise exception
  print "No exception"

import logging

try:
    # Do something that might raise an exception
except Exception as e:
    logging.exception("An error occurred:")
finally:
    # Do something whether an exception occurred or not

# Define a custom exception
class MyException(Exception):
    def __init__(self, message):
        self.message = message

# Create a function that raises an exception
def my_function():
    raise MyException("This is an exception message")

try:
    my_function()
except MyException as e:
    print(f"Caught exception: {e.message}")
finally:
    print("This will always be printed, regardless of whether an exception was raised or not.")