Supporting JavaScript-style template literals, specifically tagged
templates, could be generally useful. If we look at
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Template_literals#tagged_templates,
it's a really simple idea:
The tag function is called with the following argu
JavaScript's tagged template literals do provide nice ergonomics. These
should work well with some variation on PEP
501's types.InterpolationTemplate as the backend implementation. Some
thoughts on what that should look like:
* I also increasingly prefer the idea of using backticks to define such
On Mon, Jul 5, 2021, 12:56 PM Barry Scott wrote:
>
>
> On 5 Jul 2021, at 08:07, Thomas Güttler wrote:
>
> This means backticks, but without the dollar sign.
>
>
> In bash the backtick was so often a problem that $(cmd) was added.
>
> Having removes the grit-on-Tim's-screen backtick in python 3 I
On Mon, Jul 5, 2021, 2:40 PM Guido van Rossum wrote:
> FWIW, we could make f-strings properly nest too, like you are proposing
> for backticks. It's just that we'd have to change the lexer. But it would
> not be any harder than would be for backticks (since it would be the same
> algorithm), nor
On Thu, Jul 8, 2021 at 6:25 PM Nick Coghlan wrote:
> On Tue, 6 Jul 2021, 7:56 am Jim Baker, wrote:
>
>>
>>
>> On Mon, Jul 5, 2021, 2:40 PM Guido van Rossum wrote:
>>
>>> FWIW, we could make f-strings properly nest too, like you are proposing
>>
Supporting ~ as a binary operator is an interesting idea, especially given
the relatively limited usage of unary ~. However, the big hole in this
proposal for formulas is that there is a de facto standard "minilanguage"
for writing such formulas in Python, namely what Patsy supports:
https://patsy.
I am no expert on R, but R lazily evaluates arguments to functions; see
https://cran.r-project.org/doc/manuals/r-devel/R-lang.html#Argument-evaluation
(plus
the rest of that page, which is the language spec). Tilde is strictly used
for modeling. Also relevant would be the operator precedence
https:
-1 on this new functionality
Referring again to PEP 3106, and its support for views - this was inspired
by the functionality seen with java.util.Map. Now that dict is sort of like
java.util.LinkedHashMap - albeit safe for concurrent operations* - it's
worth exploring if there's anything in the exp
This is a bad idea in the generator itself, as commented earlier by others
here.
>From a cross implementation perspective, in Jython, different threads can
call next on a non running generator, *so long as they coordinate with each
other external to any use of this generator*, and this works fine.
Eric,
Something like these subinterpreters in CPython are used from Jython's Java
API. Like nearly all of Jython* this can be directly imported into using
Python code, as seen in tests using this feature: https://github.com/
jythontools/jython/blob/master/Lib/test/test_pythoninterpreter_jy.py
Mo
On Thu, Sep 21, 2017 at 1:57 AM, Paul Moore wrote:
> ...
>
> It's also worth remembering that there will be implementations other
> than CPython that will need changes, too - Jython, PyPy, possibly
> Cython, and many editors and IDEs. So setting the bar at "someone who
> wants this will have to s
On Thu, Sep 21, 2017 at 7:32 PM, Steven D'Aprano
wrote:
> On Thu, Sep 21, 2017 at 01:09:11PM -0700, David Mertz wrote:
> > -1
> >
> > Writing a floating point literal requires A LOT more knowledge than
> writing
> > a hex integer.
> >
> > What is the bit length of floats on your specific Python c
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