Hi All,

I bumped into this using Michael Foord's Mock library.
It feels like a bug to me, but thought I'd ask here before logging one in the tracker in case people know that we won't be able to fix it:

On 05/11/2012 13:43, Michael Foord wrote:

class Foo(object):
...  def __setattr__(s, k, v):
...   print k
...
f = Foo()

f.g = f.x = 3
g
x

Hmm, that's definitely counter-intuitive. Worth raising on python-dev?

Well, I guess "it's always been that way", so changing it would be backwards 
incompatible. Feel free to raise it though. :-)

Here's the actual problem I had:

mock = Mock()
inst = mock.Popen.return_value = mock.Popen_instance = Mock(spec=Popen)


Here the *return_value* is set first. So when mock.Popen_instance is assigned 
it already has a parent! (Setting a mock as the return value of another mock 
also establishes the child / parent relationship.)

This is why calls to the instance are then not recorded in "method_calls".

cheers,

Chris

--
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