Re: [Python-ideas] PEP 572: Statement-Local Name Bindings

I have been struggling to justify the need based on what I have read. I hope this isn't a dupe, I only saw caching mentioned in passing. Also please excuse some of the naive generalizations below for illustrative purposes. Is there a reason memoization doesn't work? If f is truly expensive,

Re: [Python-ideas] PEP 572: Statement-Local Name Bindings

On Wed, Feb 28, 2018 at 5:53 PM, Gregory P. Smith wrote: > > My first concern for this proposal is that it gives parenthesis a > non-intuitive meaning. ()s used to be innocuous. A way to group things, > make explicit the desired order of operations, and allow spanning across >

Re: [Python-ideas] PEP 572: Statement-Local Name Bindings

On Tue, Feb 27, 2018 at 2:35 PM Chris Angelico wrote: > This is a suggestion that comes up periodically here or on python-dev. > This proposal introduces a way to bind a temporary name to the value > of an expression, which can then be used elsewhere in the current > statement.

Re: [Python-ideas] PEP 572: Statement-Local Name Bindings

On Wed, Feb 28, 2018 at 4:52 PM, Robert Vanden Eynde wrote: > Hello Chris and Rob, > > did you compare your proposal tothe subject called "[Python-ideas] Temporary > variables in comprehensions" on this month list ? Yes, I did; that's one of many threads on the subject, and

Re: [Python-ideas] PEP 572: Statement-Local Name Bindings

Hello Chris and Rob, did you compare your proposal tothe subject called "[Python-ideas] Temporary variables in comprehensions" on this month list ? If you don't want to go through all the mails, I tried to summarize the ideas in this mail : https://mail.python.org/pipermail/python-ideas/2018-

Re: [Python-ideas] PEP 572: Statement-Local Name Bindings

On Wed, Feb 28, 2018 at 3:38 PM, Rob Cliffe via Python-ideas wrote: > > Hm, apologies. This is in complete contrast to my previous post, where I > was pretty enthusiastic about Chris's PEP. But I can't resist sharing these > thoughts ... > > There was some vague

Re: [Python-ideas] PEP 572: Statement-Local Name Bindings

On Wed, Feb 28, 2018 at 2:47 PM, Rob Cliffe via Python-ideas wrote: > I hope nobody will mind too much if I throw in my (relatively uninformed) 2c > before some of the big guns respond. Not at all! Everyone's contributions are welcomed. Even after the "big guns" respond,

Re: [Python-ideas] PEP 572: Statement-Local Name Bindings

On 27/02/2018 22:27, Chris Angelico wrote: This is a suggestion that comes up periodically here or on python-dev. This proposal introduces a way to bind a temporary name to the value of an expression, which can then be used elsewhere in the current statement. Hm, apologies.  This is in

Re: [Python-ideas] PEP 572: Statement-Local Name Bindings

I hope nobody will mind too much if I throw in my (relatively uninformed) 2c before some of the big guns respond. First: Well done, Chris, for all the work on this.  IMHO this could be a useful Python enhancement (and reduce the newsgroup churn :-)). On 27/02/2018 22:27, Chris Angelico

[Python-ideas] PEP 572: Statement-Local Name Bindings

This is a suggestion that comes up periodically here or on python-dev. This proposal introduces a way to bind a temporary name to the value of an expression, which can then be used elsewhere in the current statement. The nicely-rendered version will be visible here shortly: