On 4/5/2021 3:32 PM, Chris Angelico wrote:
On Tue, Apr 6, 2021 at 5:14 AM Terry Reedy wrote:
Python *could* do the same for expresssions: load 'a' (in this case)
once into a register or stack slot and use that value consistently
throughout the expression. Replacing the eval with the following
On Mon, Apr 5, 2021 at 10:46 AM Terry Reedy wrote:
> If there were a 'dead
> (unreachable) code' exception, a reader or compiler would have to
> analyze each use of 'yield' and decide whether it is reachable or not.
>
It's also subject to how hard the compiler feels like trying in any given
rele
On 6/04/21 4:02 am, Terry Reedy wrote:
*Any* use of 'yield' in a function makes the function a generator
function. ... If there were a 'dead
(unreachable) code' exception, a reader or compiler would have to
analyze each use of 'yield' and decide whether it is reachable or not.
It would als
Terry: ... '__missing__' is new since I learned Python ...
With so many new dunder variables added, I am wondering when some dunderhead
comes up with:
__mifflin__
The documented use paper is:
https://theoffice.fandom.com/wiki/Dunder_Mifflin_Paper_Company
-Original Message
On 04/04/2021 20:57, Julien Hofmann wrote:
Hi everyone,
I've created a code to run a 2D mapping using matplotlib from a .csv file.
I've tried to set the maximum color (red) of the scale as 80% of the maximum
value and not as the maximum value of my .csv file.
Does someone know how to modify th
Le lundi 5 avril 2021 à 21:50:49 UTC+2, David Lowry-Duda a écrit :
Thank you for your response!
I just tried it but it doesn't make what I want.
Bassically, I would like to not put any color for every values above 0.8 times
the maximum value (ie. 488).
Hence, the ''maximum'' color (ie. red) woul
On Tue, Apr 6, 2021 at 5:36 AM Rob Cliffe via Python-list
wrote:
>
>
>
> On 05/04/2021 18:33, Chris Angelico wrote:
> >
> > Firstly, anything with any variable at all can involve a lookup, which
> > can trigger arbitrary code (so "variables which do not occur on the
> > LHS" is not sufficient).
>
Hello,
> I've created a code to run a 2D mapping using matplotlib from a .csv
> file.
> I've tried to set the maximum color (red) of the scale as 80% of the maximum
> value and not as the maximum value of my .csv file.
> Does someone know how to modify that?
If I understand what you're trying t
On 05/04/2021 18:33, Chris Angelico wrote:
Firstly, anything with any variable at all can involve a lookup, which
can trigger arbitrary code (so "variables which do not occur on the
LHS" is not sufficient).
Interesting. I was going to ask: How could you make a variable lookup
trigger arbitra
On Tue, Apr 6, 2021 at 5:14 AM Terry Reedy wrote:
>
> On 4/5/2021 1:53 PM, Chris Angelico wrote:
> > On Tue, Apr 6, 2021 at 3:46 AM Terry Reedy wrote:
> >> *While 'a and not a' == False in logic, in Python it might raise
> >> NameError. But that would still mean that it is never True, making
> >
On 4/5/2021 1:53 PM, Chris Angelico wrote:
On Tue, Apr 6, 2021 at 3:46 AM Terry Reedy wrote:
*While 'a and not a' == False in logic, in Python it might raise
NameError. But that would still mean that it is never True, making
'yield 0' still unreachable.
When I wrote that, I knew I might be m
> It seems that the os.open API cannot distinguish between a permission error
> and the fact that a directory cannot be opened like files.
> The following script reproduces the scenario (tested on Python 3.8.2
> (tags/v3.8.2:7b3ab59, Feb 25 2020, 22:45:29) [MSC v.1916 32 bit (Intel)] on
> win32) :
On Tue, Apr 6, 2021 at 3:50 AM Rami Khaldi wrote:
>
> Hello,
>
> It seems that the os.open API cannot distinguish between a permission error
> and the fact that a directory cannot be opened like files.
> The following script reproduces the scenario (tested on Python 3.8.2
> (tags/v3.8.2:7b3ab59,
On Tue, Apr 6, 2021 at 3:46 AM Terry Reedy wrote:
> *While 'a and not a' == False in logic, in Python it might raise
> NameError. But that would still mean that it is never True, making
> 'yield 0' still unreachable.
>
And even just the lookup can have side effects, if your code is
pathologicall
Hello,
It seems that the os.open API cannot distinguish between a permission error
and the fact that a directory cannot be opened like files.
The following script reproduces the scenario (tested on Python 3.8.2
(tags/v3.8.2:7b3ab59, Feb 25 2020, 22:45:29) [MSC v.1916 32 bit (Intel)] on
win32) :
On 4/5/2021 8:25 AM, Bischoop wrote:
The return suspends the function execution so how is it that in below
example I got output:
def doit():
return 0
yield 0
print(doit())
*Any* use of 'yield' in a function makes the function a generator
function. This is a simple rule that
On Tue, Apr 6, 2021 at 3:26 AM Rob Cliffe via Python-list
wrote:
>
>
>
> On 05/04/2021 17:52, Chris Angelico wrote:
> > On Tue, Apr 6, 2021 at 2:32 AM Rob Cliffe via Python-list
> > wrote:
> >>
> >>
> >> It doesn't appear to, at least not always. In Python 3.8.3:
> >> from dis import dis
> >> de
On 05/04/2021 17:52, Chris Angelico wrote:
I don't understand. What semantic difference could there be between
x = { 1: 2 } ; y = [3, 4] ; z = (5, 6)
and
x, y, z = { 1:2 }, [3, 4], (5, 6)
? Why is it not safe to convert the latter to the former?
But I withdraw "set" from my "
On 05/04/2021 17:52, Chris Angelico wrote:
On Tue, Apr 6, 2021 at 2:32 AM Rob Cliffe via Python-list
wrote:
It doesn't appear to, at least not always. In Python 3.8.3:
from dis import dis
def f(): x = 1 ; y = 2
def g(): (x,y) = (1,2)
dis(f)
dis(g)
Output:
2 0 LOAD_CONST
On Tue, Apr 6, 2021 at 2:32 AM Rob Cliffe via Python-list
wrote:
>
>
>
> It doesn't appear to, at least not always. In Python 3.8.3:
> from dis import dis
> def f(): x = 1 ; y = 2
> def g(): (x,y) = (1,2)
> dis(f)
> dis(g)
>
> Output:
>2 0 LOAD_CONST 1 (1)
>
On 05/04/2021 00:47, dn via Python-list wrote:
On 04/04/2021 01.00, Rob Cliffe via Python-list wrote:
On 03/04/2021 04:09, 2qdxy4rzwzuui...@potatochowder.com wrote:
On 2021-04-03 at 02:41:59 +0100,
Rob Cliffe via Python-list wrote:
x1 = 42; y1 = 3; z1 = 10
x2 = 41; y2 = 12;
On 2021-04-05 2:25 PM, Bischoop wrote:
The return suspends the function execution so how is it that in below
example I got output:
def doit():
return 0
yield 0
print(doit())
The 'yield' in the function makes the function a 'generator' function.
'Calling' a generator functio
The return suspends the function execution so how is it that in below
example I got output:
def doit():
return 0
yield 0
print(doit())
--
https://mail.python.org/mailman/listinfo/python-list
On 05/04/2021 06:25, Cameron Simpson wrote:
If you truly need to test msg() _without_ the file= parameter, you could
monkey patch module_2:
old_MSG_DESTINATION = module_2.MSG_DESTINATION
module_2.MSG_DESTINATION = sys.stderr
# now the module_2 module has an updated reference for
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