Guido van Rossum wrote:
The issue here is that asyncio only interprets StopIteration as
returning from the generator (with a possible value), while a Trollius
coroutine must use "raise Return()" to specify a return value;
this works as long as Return is a subclass of StopIteration, but PEP 479
2014-11-28 10:12 GMT+01:00 Greg Ewing :
> I don't understand. If I'm interpreting PEP 479 correctly, in
> 'x = yield from foo', a StopIteration raised by foo.__next__()
> doesn't get turned into a RuntimeError
The Trollius coroutine uses "raise Return(value)" which is basically a
"raise StopIterat
On Fri, Nov 28, 2014 at 8:18 PM, Victor Stinner
wrote:
> 2014-11-28 10:12 GMT+01:00 Greg Ewing :
>> I don't understand. If I'm interpreting PEP 479 correctly, in
>> 'x = yield from foo', a StopIteration raised by foo.__next__()
>> doesn't get turned into a RuntimeError
>
> The Trollius coroutine u
2014-11-28 3:49 GMT+01:00 Nick Coghlan :
> I think between contextlib and Trollius, the case is starting to be
> made for raising an UnhandledStopIteration subclass of RuntimeError,
> rather than a generic RuntimeError.
I modified Trollius to test such idea:
* Return inherits from Exception (not
off-topic , not about asyncio but related to the PEP and other things
been discussed in this thread
On 11/28/14, Victor Stinner wrote:
> 2014-11-28 3:49 GMT+01:00 Nick Coghlan :
>
[...]
>
> So yes, it may help to have a new specialized exception, even if "it
> works" with RuntimeError.
>
This is
correction ...
On 11/28/14, Olemis Lang wrote:
>
> try:
>...
> except RuntimeError:
>return
>
... should be
{{{#!py
# inside generator function body
try:
...
except StopIteration:
return
}}}
[...]
--
Regards,
Olemis - @olemislc
Apache(tm) Bloodhound contributor
http://issue
ACTIVITY SUMMARY (2014-11-21 - 2014-11-28)
Python tracker at http://bugs.python.org/
To view or respond to any of the issues listed below, click on the issue.
Do NOT respond to this message.
Issues counts and deltas:
open4668 (+10)
closed 30056 (+42)
total 34724 (+52)
Open issues wit
On Tue, Nov 25, 2014 at 6:52 AM, Brett Cannon wrote:
>
> I suspect if we make sure we add Bitbucket and GitHub login support to the
> issue tracker then that would help go a fair distance to helping with the
> GitHub pull of reach (and if we make it so people can simply paste in their
> fork's
@Victor: I'm glad you found a work-around. Maybe you can let your users
control it with a flag? It is often true that straddling code pays a
performance cost. Hopefully the slight performance dip might be an
incentive for people to start thinking about porting to asyncio.
@Olemis: You never showed
> On Nov 27, 2014, at 8:52 AM, Guido van Rossum wrote:
>
> I understand that @allow_import_stop represents a compromise, an attempt at
> calming the waves that PEP 479 has caused. But I still want to push back
> pretty hard on this idea.
>
> - It means we're forever stuck with two possible se
Thanks for being a good sport, Raymond! I've probably spent too much time
fretting about this, so thanks for the reminder. I want to get back to
other things too, in particular the type hinting PEP: there's a draft, but
there are many things we --the co-authors-- want to change before we bother
the
Hi all,
There was some discussion on python-ideas last month about how to make
it easier/more reliable for a module to override attribute access.
This is useful for things like autoloading submodules (accessing
'foo.bar' triggers the import of 'bar'), or for deprecating module
attributes that aren
On Sat, Nov 29, 2014 at 12:59 PM, Nathaniel Smith wrote:
> Option 4: Add a new function sys.swap_module_internals, which takes
> two module objects and swaps their __dict__ and other attributes. By
> making the operation a swap instead of an assignment, we avoid the
> lifecycle pitfalls from Optio
Are these really all our options? All of them sound like hacks, none of
them sound like anything the language (or even the CPython implementation)
should sanction. Have I missed the discussion where the use cases and
constraints were analyzed and all other approaches were rejected? (I might
have so
14 matches
Mail list logo
