Move loop attribute to _FlowControlMixin

Move loop attribute to _FlowControlMixin

[GvR, 2014-11-03 03:03:47]

Good catch. LGTM.

[Andrew Svetlov, 2014-11-05 15:39:50]

https://codereview.appspot.com/168070043/diff/1/asyncio/transports.py
File asyncio/transports.py (right):

https://codereview.appspot.com/168070043/diff/1/asyncio/transports.py#newcode243
asyncio/transports.py:243: assert loop is not None
assert is inconsistent with ctor signature: looking on __init__ the loop
parameter has default None value.

[Andrew Svetlov, 2014-11-05 15:39:50]

https://codereview.appspot.com/168070043/diff/1/asyncio/transports.py
File asyncio/transports.py (right):

https://codereview.appspot.com/168070043/diff/1/asyncio/transports.py#newcode243
asyncio/transports.py:243: assert loop is not None
assert is inconsistent with ctor signature: looking on __init__ the loop
parameter has default None value.

[haypo_gmail, 2014-11-05 15:49:27]

https://codereview.appspot.com/168070043/diff/1/asyncio/transports.py
File asyncio/transports.py (right):

https://codereview.appspot.com/168070043/diff/1/asyncio/transports.py#newcode243
asyncio/transports.py:243: assert loop is not None
On 2014/11/05 15:39:50, Andrew Svetlov wrote:
> assert is inconsistent with ctor signature: looking on __init__ the loop
> parameter has default None value.

Well, that's right but I wanted to use the same prototype than other classes.
Example with Future:

    def __init__(self, *, loop=None):

[Andrew Svetlov, 2014-11-05 16:04:56]

On 2014/11/05 15:49:27, haypo_gmail wrote:
> https://codereview.appspot.com/168070043/diff/1/asyncio/transports.py
> File asyncio/transports.py (right):
> 
>
https://codereview.appspot.com/168070043/diff/1/asyncio/transports.py#newcode243
> asyncio/transports.py:243: assert loop is not None
> On 2014/11/05 15:39:50, Andrew Svetlov wrote:
> > assert is inconsistent with ctor signature: looking on __init__ the loop
> > parameter has default None value.
> 
> Well, that's right but I wanted to use the same prototype than other classes.
> Example with Future:
> 
>     def __init__(self, *, loop=None):

Yes, Future and others can be constructed with implicit event loop.
But every transport in asyncio requires explicit pass of loop parameter.