On Sat, May 30, 2020 at 04:41:58PM +1200, Greg Ewing wrote:
> On 30/05/20 2:52 am, Dominik Vilsmeier wrote:
> >Indeed locals are special, but why was it designed this way? Why not
> >resolve such an unbound local name in the enclosing scopes?
>
> From experience with other languages I can attest t
OK, I didn't want to be guilty of advertising, but it is ImDisk and can,
I believe, be downloaded from
https://sourceforge.net/projects/imdisk-toolkit/
and I have used it happily for some years.
Disclosure: I have no interest in or connection with, direct or
indirect, financial or otherwise
On 30/05/20 4:28 pm, Steven D'Aprano wrote:
py> len()
TypeError: len() takes exactly one argument (0 given)
to be replaced with something like this:
UnboundLocalError: local variable referenced before assignment
Not in my version of the idea, because a parameter would only be
a
On Sat, May 30, 2020 at 04:34:49PM +1200, Greg Ewing wrote:
> On 30/05/20 12:11 am, Steven D'Aprano wrote:
> >I said that the storage mechanism of *how* local variables are stored,
> >and hence whether or not writes to `locals()` are reflected in the
> >local variables, is an implementation detail.
On Sat, May 30, 2020 at 6:13 PM Steven D'Aprano wrote:
>
> On Sat, May 30, 2020 at 04:34:49PM +1200, Greg Ewing wrote:
> > On 30/05/20 12:11 am, Steven D'Aprano wrote:
> > >I said that the storage mechanism of *how* local variables are stored,
> > >and hence whether or not writes to `locals()` are
On 30/05/20 7:15 pm, Steven D'Aprano wrote:
Out of curiosity, which languages are you thinking of? I know Lua does
that, I can't think of any others.
You've probably never seen the one I'm thinking of. It's a
proprietary, vaguely VB-like language used for scripting a
particular application. It
On 30/05/20 8:03 pm, Steven D'Aprano wrote:
Is this `?=` idea for a general purpose operator we can use anywhere we
like?
I introduced it as part of a two-part idea for allowing optional
parameters without a default. But there would be nothing to stop
you from using it elsewhere.
The syntax wa
On Thu, May 28, 2020 at 10:37:58PM +1200, Greg Ewing wrote:
> I think we need a real example to be able to talk about this
> meaningfully.
>
> But I'm having trouble thinking of one. I can't remember ever
> writing a function with a default argument value that *has* to
> be mutable and *has* to h
On Sat, May 30, 2020 at 6:00 AM Steven D'Aprano wrote:
> On Fri, May 29, 2020 at 06:03:30PM +0200, Alex Hall wrote:
>
> > > I never said that Python's scoping rules were implementation details.
> > >
> > > I said that the storage mechanism of *how* local variables are stored,
> > > and hence whet
On Fri, 29 May 2020 22:18:15 +0300
Paul Sokolovsky wrote:
> In all fairness, I don't know if Stackless ever fully waved GIL
> goodbye. If not, it shows how much the Python userbase needs to get rid
> of GIL.
Yes, nevermind that Stackless was designed at a time when multicore
computers were an exo
On Thu, May 28, 2020 at 10:27:47PM +1200, Greg Ewing wrote:
> On 28/05/20 7:31 pm, Chris Angelico wrote:
> >Is it an implementation detail that 4 will be used for eggs if it
> >isn't passed?
>
> That feels different to me somehow. I think it has something to do
> with declarative vs. procedural st
On 31/05/20 1:31 am, Steven D'Aprano wrote:
On Thu, May 28, 2020 at 10:27:47PM +1200, Greg Ewing wrote:
On 28/05/20 7:31 pm, Chris Angelico wrote:
Is it an implementation detail that 4 will be used for eggs if it
isn't passed?
The default value of eggs
being 4 is a static fact, but creating a
On 2020-05-28 18:02, Greg Ewing wrote:
If __name__ == '__main__':
sys.exit(main(sys.argv[1:]))
It's not clear that exiting with the return value of main() is
the most Pythonic thing to do -- it's more of a C idiom that
If you'd like a script to be uhh, highly-scriptable, returning one
On Sun, May 31, 2020 at 6:14 AM Mike Miller wrote:
>
>
> On 2020-05-28 18:02, Greg Ewing wrote:
> >> If __name__ == '__main__':
> >> sys.exit(main(sys.argv[1:]))
> >
> > It's not clear that exiting with the return value of main() is
> > the most Pythonic thing to do -- it's more of a C idiom
On Sun, May 31, 2020 at 06:45:01AM +1000, Chris Angelico wrote:
> On Sun, May 31, 2020 at 6:14 AM Mike Miller wrote:
> >
> >
> > On 2020-05-28 18:02, Greg Ewing wrote:
> > >> If __name__ == '__main__':
> > >> sys.exit(main(sys.argv[1:]))
> > >
> > > It's not clear that exiting with the return
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