Just an FYI that I actually plan to try and make the activation scripts (at
least under PowerShell) completely static so they can be signed.
On Tue, Jun 18, 2019 at 3:31 PM Caleb Donovick
wrote:
> Currently EnvBuilder allows for a number of customizations of virtual
> environments, changing whic
Currently EnvBuilder allows for a number of customizations of virtual
environments, changing which python is used, automatically installing
libraries, etc... However, it does not allow for any modifications of the
activate script itself (unless one wants to rewrite it completely).
However, a fairl
On Tue, Jun 18, 2019 at 3:37 PM James Lu wrote:
> # regular code
> unittest:
> # test code goes here
>
> This code would be run when the runtime -unittest flag is passed. It would
> function as test usages and example client code. The code within the block
> would remain in .pyc, unless the -O s
> And what I'm asking for is a justification for that. Python in
> general has done fine without it for almost 3 decades. I believe you
> that you have so far not found a way to make a pretty DSL without it,
> and similarly for Yanghao's HDL. But it's far from obvious that none
> exists that mo
Hi James
Something similar can already be done, say via
from somewhere import unittest
@unittest
def f():
# test code goes here
As it's your idea, I suggest you create and put up an implementation on
PyPi, and post again to this list when you have some real-world examples of
the use of this
I have been following this discussion for a long time, and coincidentally I
recently started working on a project that could make use of assignment
overloading. (As an aside it is a configuration system for a astronomical
data analysis pipeline that makes heavy use of descriptors to work around
his
# regular code
unittest:
# test code goes here
This code would be run when the runtime -unittest flag is passed. It would
function as test usages and example client code. The code within the block
would remain in .pyc, unless the -O switch is passed.
Write "" or ## above a unittest to in
> python is not build for speed
Yes, but it scales to speed, letting you speed up your code easily when you
need it. Consider Cython and Nuitka. Consider GraalPython. Consider... consider
that C dylibs can be loaded and used from within Python without any wrappers.
You can create the <- operato
Dan Sommers writes:
> How would I "think of types as collections of their instances"?
The canonical example of a type as a collection of instances is an
enumeration, the simplest (useful) example of which is bool = {False,
True}.
In pre-big-integer Python, in principle you could do the same thi
;-)
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On 17/06/2019 16.47, Guido van Rossum wrote:
> Type theorists apparently have chosen to use the <: notation, and
> presumably for the same reason.
Can we call it "party hat operator", please? <:-)
Christian
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On 18/06/2019 11:06, Yanghao Hua wrote:
On Sun, Jun 16, 2019 at 7:41 PM Steven D'Aprano wrote:
On Sun, Jun 16, 2019 at 08:04:44AM -0700, Christopher Barker wrote:
On Sun, Jun 16, 2019 at 6:08 AM Franklin? Lee
wrote:
The proposed feature is for expressing type relations, which only
matters
On Sun, Jun 16, 2019 at 7:41 PM Steven D'Aprano wrote:
>
> On Sun, Jun 16, 2019 at 08:04:44AM -0700, Christopher Barker wrote:
> > On Sun, Jun 16, 2019 at 6:08 AM Franklin? Lee
> >
> > wrote:
> >
> > > The proposed feature is for expressing type relations, which only
> > > matters when you care
On Tue, Jun 18, 2019 at 10:57 AM Stephen J. Turnbull
wrote:
> Maybe you'll persuade enough committers without examples. Maybe the
> problem will be solved en passant if the "issubclass needs an
> operator" thread succeeds (I've already suggested to Yanghao offlist
> that Guido's suggested spellin
`<:` kind of notation would look more clear, I agree.
My proposition came after thinking the wording used in Python.
issubclass() - is subclass?
By definition, subclass reminds me set theory.
https://en.wikipedia.org/wiki/Subclass_(set_theory) which also has a relativity
with Subtyping as Gui
Caleb Donovick writes:
> I don't really want to change the semantic of =. What Yanghao and
> I are asking for is an in-place update/assign operator which isn't
> burdened with numeric meaning.
And what I'm asking for is a justification for that. Python in
general has done fine without it for
17.06.19 17:47, Guido van Rossum пише:
Indeed it would work the same way as set comparison does, if you
interpret a type as the set of its instances.
But I imagine that many Python users are not so familiar with this
abstraction level (even if they use isinstance() and issubclass() all
day lo
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