The cause turned out to be my misunderstanding:
class SomeClass:
my_list = []
def add_to_list(self, item):
self.my_list.append(item)
def print_list(self):
for l in self.my_list:
# some action
I didn't realize that the
my_list=[]
Would create a shared list instance between all instances of the
class ... Duh! As a result, threads were all appending to that
instance.
On Jul 8, 12:44 pm, aiden <[email protected]> wrote:
> Hello!
>
> I am running into a problem with mod_wsgi. Variables are accumulating
> data across requests. A simple example might be:
>
> def print_list( sapi, list ):
> for item in list:
> sapi.write(item)
>
> In one request the list contains 5 items (as it should). In subsequent
> requests the list contains 5,10,15,20 items and so on. Even with `del
> the_list` at the end of each request. I am sure that no logic or state
> in the application itself is the culprit.
>
> Interestingly the list goes to 5,10,15,20,15,30,35 and then back to 5.
> If I turn KeepAlive off in Apache, I get different results. Simple
> test-cases do not reproduce the problem, only when the code gets
> sufficiently large does the problem occur, leading me to think that
> its cause is rather subtle. Has anyone else had experiences with data
> persisting/repeating across requests?
>
> Thank you in advance
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