Re: [Twisted-Python] Problem with installing twisted 13.0 with Python 2.7 on 64 bit Win 7

On Tue, Jun 18, 2013 at 8:12 AM, Weikai (Victor) Xie wrote: > Hi, folks, > > I was trying to install twisted 13.0 on my 64 bit win 7 but get some > strange problem - there is no sub-packages available under twisted! > > Here is a screen copy: > > Python 2.7.4 (default, Apr 6 2013, 19:54:46) [MSC

Re: [Twisted-Python] Problem with installing twisted 13.0 with Python 2.7 on 64 bit Win 7

On Tue, Jun 18, 2013 at 04:12:17PM +1000, Weikai (Victor) Xie wrote: > >>> import twisted > >>> twisted.web > Traceback (most recent call last): > File "", line 1, in > AttributeError: 'module' object has no attribute 'web' I believe that's just how packages work in Python. On a Linux machine I

[Twisted-Python] If the errbacks of a canceled Deferred are called with error other than CancelledError, is this acceptable?

If I cancel a Deferred, the errbacks of the Deferred are not called with CancelledError but with other errors like ConnectionDone, is this acceptable? ___ Twisted-Python mailing list Twisted-Python@twistedmatrix.com http://twistedmatrix.com/cgi-bin/mailma

Re: [Twisted-Python] If the errbacks of a canceled Deferred are called with error other than CancelledError, is this acceptable?

By way of background, Kai Zhang is one of our GSoC interns, working on adding Deferred cancellation support to Twisted. I believe the specific module he is working on is the POP3 client, but it's a general question - should we try to keep CancelledError percolating all the way to the top of callbac

Re: [Twisted-Python] logging

On Tue, Jun 18, 2013, at 4:50, Glyph wrote: > On Jun 17, 2013, at 5:48 PM, James Y Knight wrote: ... > > And having a logging system which doesn't even support a basic > > log level is just silly. Hopefully the new system can at least > > have that. > > The new system being proposed does have log

Re: [Twisted-Python] If the errbacks of a canceled Deferred are called with error other than CancelledError, is this acceptable?

On Tue, Jun 18, 2013 at 8:37 AM, Itamar Turner-Trauring < ita...@futurefoundries.com> wrote: > By way of background, Kai Zhang is one of our GSoC interns, working on > adding Deferred cancellation support to Twisted. I believe the specific > module he is working on is the POP3 client, but it's a g

Re: [Twisted-Python] logging

On Jun 18, 2013, at 8:25 AM, Peter Westlake wrote: > On Tue, Jun 18, 2013, at 4:50, Glyph wrote: >> On Jun 17, 2013, at 5:48 PM, James Y Knight wrote: > ... >>> And having a logging system which doesn't even support a basic >>> log level is just silly. Hopefully the new system can at least >>>

Re: [Twisted-Python] If the errbacks of a canceled Deferred are called with error other than CancelledError, is this acceptable?

On Jun 18, 2013, at 8:42 AM, Christopher Armstrong wrote: > On Tue, Jun 18, 2013 at 8:37 AM, Itamar Turner-Trauring > wrote: > By way of background, Kai Zhang is one of our GSoC interns, working on adding > Deferred cancellation support to Twisted. I believe the specific module he is > work

Re: [Twisted-Python] If the errbacks of a canceled Deferred are called with error other than CancelledError, is this acceptable?

On Tue, Jun 18, 2013 at 8:22 PM, Glyph wrote: > I would say that if we want to percolate this information up to the > caller, there should be a ConnectingCancelled exception that is a subtype > of the previous exception type. > Doesn't that mean we'll have many subclasses that mean that somethin

Re: [Twisted-Python] If the errbacks of a canceled Deferred are called with error other than CancelledError, is this acceptable?

On Jun 18, 2013, at 12:03 PM, Laurens Van Houtven <_...@lvh.io> wrote: > On Tue, Jun 18, 2013 at 8:22 PM, Glyph wrote: > I would say that if we want to percolate this information up to the caller, > there should be a ConnectingCancelled exception that is a subtype of the > previous exception t

Re: [Twisted-Python] logging

On Mon, Jun 17, 2013 at 11:50 PM, Glyph wrote: > On Jun 17, 2013, at 5:48 PM, James Y Knight wrote: > > And having a logging system which doesn't even support a basic log level > is just silly. Hopefully the new system can at least have that. > > +1 > The new system being proposed does have lo

Re: [Twisted-Python] If the errbacks of a canceled Deferred are called with error other than CancelledError, is this acceptable?

On 06/18/2013 02:22 PM, Glyph wrote: Making an API that previously documented raising (or failing) exception types A, B, and C raise (or fail with) D is not necessarily a compatible change. Making it raise (or fail with) A' (a subclass of A) is, though. The API for pop3client does *not* docu

Re: [Twisted-Python] If the errbacks of a canceled Deferred are called with error other than CancelledError, is this acceptable?

On Jun 18, 2013, at 2:13 PM, Itamar Turner-Trauring wrote: > On 06/18/2013 02:22 PM, Glyph wrote: >> Making an API that previously documented raising (or failing) exception >> types A, B, and C raise (or fail with) D is not necessarily a compatible >> change. Making it raise (or fail with) A'

Re: [Twisted-Python] If the errbacks of a canceled Deferred are called with error other than CancelledError, is this acceptable?

First off, +1 on propagating the CancelledError failure (or something even more specific) all the way back up the errback chain. lvh> Personally, I think it's enough of a change in functionality to warrant a chance in ways a function can fail I'm not sure what change in functionality you mean. De

Re: [Twisted-Python] If the errbacks of a canceled Deferred are called with error other than CancelledError, is this acceptable?

On 06/18/2013 05:24 PM, Glyph wrote: Hrm. I would say that if you don't document exceptions, then you just have to support whatever your behavior was before :). http://twistedmatrix.com/trac/wiki/CompatibilityPolicy does not explore this issue, though. The many possible options in this ca