Here's a finaliser that runs:
class Spam(object):
def __new__(cls):
instance = object.__new__(cls)
print("instance created successfully")
return instance
def __del__(self):
print("deleting", repr(self))
An example:
py> s = Spam(); del s
instance created successfully
deleting <__main__.Spam object at 0xb7bf270c>
Why doesn't __del__ run here?
class Eggs(object):
def __new__(cls):
instance = object.__new__(cls)
print("instance created successfully")
return instance
def __init__(self):
print("self definitely exists:", self)
raise Exception
def __del__(self):
print("deleting", repr(self))
And an example:
py> e = Eggs()
instance created successfully
self definitely exists: <__main__.Eggs object at 0xb7bf21ec>
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "<stdin>", line 8, in __init__
Exception
py>
--
Steve
“Cheer up,” they said, “things could be worse.” So I cheered up, and sure
enough, things got worse.
--
https://mail.python.org/mailman/listinfo/python-list
