Cannot stub logging with open stream

[jonathan-benn]

I'm not 100% sure this is a bug, or just something that we can't do anything about. But it's possible that a different internal implementation would allow the following code to execute.

This code succeeds:

import sinon
import logging
log = logging.getLogger('test')
stub = sinon.stub(log, 'warning')

This code fails:

import sinon
import logging
import sys
log = logging.getLogger('test')
streamHandler = logging.StreamHandler(sys.stdout)
log.addHandler(streamHandler)
stub = sinon.stub(log, 'warning') # raises "TypeError: can't pickle thread.lock objects"

[jonathan-benn]

I've found a similar issue with the following code:

import ConfigParser
import sinon
config = ConfigParser.ConfigParser()
stub = sinon.stub(config, 'get') # TypeError: cannot deepcopy this pattern object