Re: [Python-ideas] Allow not in lambda expressions

On 2019-03-26 23:29, Abdur-Rahmaan Janhangeer wrote: Suppose i have (lambda x: x if x != None else '')(someVar) returning an empty string if none but, if "not" was allowed (lambda x: x if x not None else '')(someVar) it might have been more elegant PROPOSAL: Allow "not" in lambda expression

Re: [Python-ideas] Allow not in lambda expressions

@Brendan unfortunately i've realised it. py sounded suddenly english. ___ Python-ideas mailing list [email protected] https://mail.python.org/mailman/listinfo/python-ideas Code of Conduct: http://python.org/psf/codeofconduct/

Re: [Python-ideas] singledispatch for methods

The motivation is the same as for functools.singledispatch ( https://www.python.org/dev/peps/pep-0443/) - provide generic methods. These are useful for visitor implementations that are cleaner than the visit_ approach typically used today (e.g. https://github.com/mbr/visitor). It is also useful fo

Re: [Python-ideas] singledispatch for methods

On Wed, Mar 27, 2019 at 5:09 AM Tim Mitchell wrote: > > Is it time to add singledispatch for methods to the core library? > If so, would the methoddispatch implementation suffice or are there changes > you would like made? > singledispatchmethod will be added in Python 3.8. Please try Python 3.8

Re: [Python-ideas] Simpler thread synchronization using "Sticky Condition"

Ben, Thanks very much for your reply. Everything you say is true, and the system can certainly be made to work (and without the performance problem I described) using only Condition variables. I think the correct version of my pseudo-code becomes: def sender(): while alive(): wa

Re: [Python-ideas] Simpler thread synchronization using "Sticky Condition"

Thank you everyone who has commented on this issue, I've been overwhelmed by the helpfulness and thoughtfulness of the responses. In summary: * Condition variables work without problems provided you use them correctly, but using them correctly is quite tricky. * Using an event to achieve the s

[Python-ideas] Unified style of cache management API

re module [1] and struct module [2] have module-level cache for compiled stuffs. Other third-party modules may also need cache for something. Do we need an unified cache management API like this? I suppose it's not mandatory, but welcome each module to use this API.   module.cache_get_capacity(

Re: [Python-ideas] Unified style of cache management API

On Wed, Mar 27, 2019 at 6:47 AM Ma Lin wrote: > re module [1] and struct module [2] have module-level cache for compiled > stuffs. > Other third-party modules may also need cache for something. > > Do we need an unified cache management API like this? > Need? No. Nice to have? Maybe. > I suppo

Re: [Python-ideas] Unified style of cache management API

27.03.19 15:46, Ma Lin пише: re module [1] and struct module [2] have module-level cache for compiled stuffs. Other third-party modules may also need cache for something. Do we need an unified cache management API like this? I suppose it's not mandatory, but welcome each module to use this API.

[Python-ideas] New Project to Capture summaries from this list

Hi all, Inspired by Abdur-Rahmaan Janhangeer and some previous discussion son this list, I've started a project to capture some of the common threads from this list (and others). We often find ourselves saying things like "this was discussed on this list a year or so ago" when someone brings up a

Re: [Python-ideas] The Mailing List Digest Project

continuing a better effort here: https://github.com/PythonCHB/PythonListsSummaries moving to an impersonal repo later! Garanti sans virus. www.avast.com