t with the standard ones.
This looks like fun!
BTW why are we doing it: is it some sort of 'homework assignment' or are
you a dev 'scratching an itch'?
May I suggest a review of the first few pages/chapters in the PSL docs
(Python Standard Library): Built-in Functions,
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e/class system, which is why
I'm trying to understand it by playing with it.
I accept, one might say 'on faith', that in Python "everything is an
object", and proceed from there. Sorry!
Similarly, I've merely accepted the limitations of pprint() - and
probably use
link. The size of a symbolic link is the length of the pathname it
contains, without a terminating null byte.
Thus, compare the results of the two calls to detect a difference.
--
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On 29/07/2020 07:29, J. Pic wrote:
Ideas for solutions:
- use pip install --user at home, copy over ~/.local/lib/python3.8/site-packages
- same, but with ~/.cache/pip
...or even building an entire parallel Python environment on an
Internet-connected machine (even a VM), from which the
On 31/07/2020 07:25, Barry Scott wrote:
Use the Reply or Reply-To-All feature of your email program and it will do the
rest for you.
I can't find instructions for the proper way to reply to 'python list'. Is
it simply a matter of keeping the message title identical to the o
On 31/07/2020 02:52, o1bigtenor wrote:
I regularly work in planning through multiple years at once.
This means that I like to have a lot of stuff available in a calendar
function.
Python seems to be locked when I need to display more than 1 year at a
time.
I don't see a way to display some
On 01/08/2020 23:36, o1bigtenor wrote:
On Sat, Aug 1, 2020 at 1:29 AM dn via Python-list
mailto:python-list@python.org>> wrote:
On 31/07/2020 02:52, o1bigtenor wrote:
> I regularly work in planning through multiple years at once.
> This means that I like to have a
On 02/08/2020 12:24, o1bigtenor wrote:
On Sat, Aug 1, 2020 at 6:29 PM dn via Python-list
wrote:
On 01/08/2020 23:36, o1bigtenor wrote:
On Sat, Aug 1, 2020 at 1:29 AM dn via Python-list
mailto:python-list@python.org>> wrote:
On 31/07/2020 02:52, o1bigtenor wrote:
> I regul
On 02/08/2020 12:42, o1bigtenor wrote:
On Sat, Aug 1, 2020 at 7:24 PM o1bigtenor wrote:
On Sat, Aug 1, 2020 at 6:29 PM dn via Python-list
wrote:
On 01/08/2020 23:36, o1bigtenor wrote:
On Sat, Aug 1, 2020 at 1:29 AM dn via Python-list
mailto:python-list@python.org>> wrote:
On 31/0
On 03/08/2020 13:52, Steve wrote:
When I double click on a .py file, it executes at the command prompt with black
background and small white font.
Is there python code to change the font size and background color?
Ctrl-Shift-+ ?
===
FootNote:
Would it
On 04/08/2020 20:38, Steve wrote:
Why should line 6 fail until line 7 is commented out?
Python complains that MSN is "referenced before assignment".
def ReadTheEQfile():
global MSN
MSN = ("1 Monitor") #This line works every time.
def EditTheEQlist():
p
On 07/08/2020 05:33, Skip Montanaro wrote:
Hmmm... Rename genes, fix Excel, or dump Excel in favor of Python? I know
what my choice would have been. :-)
https://www.theverge.com/2020/8/6/21355674/human-genes-rename-microsoft-excel-misreading-dates
At the risk of screaming off-topic...
The
ollects a list of changes
to the file which will be saved to the file, as above.
Further, databases have been designed for this sort of partial update
scenario. If/when updates become too frequent, or the file becomes
extensive, recommend you look at using an RDBMS instead of using this
'flat-file' approach...
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On 09/08/2020 15:23, Jason Friedman wrote:
I have some code I'm going to share with my team, many of whom are not yet
familiar with Python. They may not have 3rd-party libraries such as pandas
or selenium installed. Yes I can instruct them how to install, but the path
of least resistance
On 10/08/2020 05:23, Dennis Lee Bieber wrote:
On Sun, 9 Aug 2020 11:50:51 +1200, dn via Python-list
declaimed the following:
To be a logomach, let's talk about "update":-
May I advise that a 'good practice' would be to create a new file, and
thus be able to (also) main
On 11/08/2020 16:35, Martin wrote:
I am running Python 3.4.4, and would like to
use the Python Imaging Library (PIL). This
is currently not available for Python
Version 3. Does anybody know when it will
become available?
Plan B is to install Python 2.7.18. I just
need an idea of how long I
On 11/08/2020 21:27, Lim Clayton wrote:
Hi,
I am a relatively new Python User. I recently downloaded Python on my
desktop and I am unable to save anything when I use IDLE. I can run codes
on the shell without any issue but running anything on the window which
requires saving causes nothing to
On 14/08/2020 08:31, Alexa Oña wrote:
Helo, I am already subscribed.
I
De: Alexa Oña
Enviado: jueves, 13 de agosto de 2020 18:51
Para: python-list@python.org
Asunto: Support
Hello, I am Alexa
I have tried to install PYTHON 3.8.5, but could not install it on
Although many new-comers are intrigued by the compulsory indentation
rule, I have been surprised to discover that even though whitespace does
not usually feature as a formatting-specification, nevertheless Python
sometimes requires an absence of whitespace.
Will this behavior/requirement
On 14/08/2020 22:32, Antoon Pardon wrote:
Well the question is in the subject.
I have a number of modules/packages which were until recently
personal use only. However python is getting more popular
at work and some of my work was considered useful enough to
install in a public available spot
On 15/08/2020 08:01, Dennis Lee Bieber wrote:
On Fri, 14 Aug 2020 16:29:18 +1200, dn via Python-list
declaimed the following:
it is ignored by Python. (yes, this discussion disdains comments!) For
example, whitespace is no problem when it comes to defining a list:
month_names = ['Ja
Does the word "public" mean world-wide, or perhaps only amongst your
work-colleagues?
Only among work-colleagues.
We only want that anyone writing and running python scripts on particular
hosts, can
easily import these modules/packages.
Of possible interest:-
Private Pyth
On 16/08/2020 20:12, Klaus Jantzen wrote:
Hi,
the other day I came across the book "Classic Computer Science Problems
in Python" by David Kopec.
The function definitions in the examples like
=
def fib2(n: int) -> int:
if n < 2: # base case
return n
r
i would say i'm new at programing i have a year of experience in
python(but i'm tottaly a noob) i guess i'm starting to learn SQL now.What
should i do to learn better and faster?
Enroll in the local college and start your journey there?
Successfully finish it and get an internsh
Chuck's" Programming for Everybody (Getting Started with
Python) on edX, nor Paul Resnick's Python Basics on Coursera, even
mention the need to provide documentation. Where did you look, that
required such a formal application?
A public-access course means that no pre-requisite
On 21/08/2020 07:01, Sreelakshmi Madhu wrote:
not able to open IDLE
and also while running a program in cmd saved in notepad, it's showing not
found such a python file.
Please review the Python documentation (https://docs.python.org/3/), in
particular the "Python Setup and Us
itle that will help other beginners with
similar problems to benefit from answers-given
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On 22/08/2020 02:17, Meghna Karkera wrote:
Dear Respected Sir
I am Meghna, a PhD student. I have installed python in my ubuntu OS from
your website recently and tried using spyder and jupyter.
May I request you to help me with importing few matrices, each of size
100*100 in python from XLSX
On 23/08/2020 19:31, Rob Cliffe via Python-list wrote:
On WIndows 10, running Python programs in a DOS box, I would like one
Python program to chain to another. I.e. the first program to be
replaced by the second (*not* waiting for the second to finish, as with
e.g. os.system). This doesn&#
On 24/08/2020 09:04, Chris Angelico wrote:
On Mon, Aug 24, 2020 at 6:39 AM dn via Python-list
wrote:
On 23/08/2020 19:31, Rob Cliffe via Python-list wrote:
On WIndows 10, running Python programs in a DOS box, I would like one
Python program to chain to another. I.e. the first program to be
Many of us learn Python by memorising code-constructs and their use.
Even over-coming this learning-curve is but a small portion of becoming
a competent coder or programmer.
The challenges of learning how to construct an algorithm, and/or how to
analyse a real-world problem to produce a
On 25/08/2020 01:12, Py Noob wrote:
Hi!
i'm new to python and would like some help with something i was working on
from a tutorial. I'm using VScode with 3.7.0 version on Windows 7. Below is
my code and the terminal is showing the word "None" everytime I execute my
code.
r solutions - it might be quite fun to compare the
performances (PSL's time library).
My first thought was that the count() from the itertools library enables
one to step using a floating-point number. So, herewith two
generator-based solutions:-
<<< Code NB Python v3.8 &g
Am 30.09.2020 um 17:55 schrieb Dennis Lee Bieber:
> On Tue, 29 Sep 2020 22:31:18 + (UTC), Ron Villarreal via Python-list
> declaimed the following:
>
>> Tried to open Python 3.8. I have Windows 10. Icon won’t open.
>
> What "Icon"?
>
> Pyth
Am 30.09.2020 um 23:44 schrieb Chris Angelico:
> On Thu, Oct 1, 2020 at 7:33 AM Mirko via Python-list
>> We are seeing these troubles from newcomers on Windows all of the
>> time -- and that for years. Isn't it time to ask if the way Python
>> installs itself on Wind
Am 01.10.2020 um 22:17 schrieb Chris Angelico:
> Maybe those usability improvements have already been done.
Haven't doubted that. Maybe they are just not enough yet.
> Renaming Idle to "Python IDE" would be a very bad idea, since there
> are many other Python IDEs.
You
Am 02.10.2020 um 11:58 schrieb Terry Reedy:
> On 10/1/2020 4:09 PM, Mirko via Python-list wrote:
>
>> Renaming "IDLE" to "Python IDE" (or similar) might also.
> "IDLE" intentionally echoes 'Idle', as in Eric Idle of Monty
> Python. It sta
Am 03.10.2020 um 17:25 schrieb Dennis Lee Bieber:
> On Fri, 2 Oct 2020 21:47:38 +0200, Hexamorph declaimed
> the following:
>
>
>>
>> - Add a folder named "Python.org " (or similar) to the
>> desktop with shortcuts to Python, IDLE and the CHM.
>&
rg/mailman/listinfo/python-list
everything else is done.
Which (Python) tool(s) are you currently using?
What (Python) research have you done?
--
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, and then identifying d2 as
datetime.datetime.now() instead.
These questions befuddle the mind when first presented, yet the answer
seems so logical once it becomes hindsight...
Evidence:-
(blank lines added for readability)
dn $ ... python3
Python 3.8.5 (default, Aug 12 2020, 00:00:00)
[
On 18/10/2020 12:58, Mladen Gogala via Python-list wrote:
On Sat, 17 Oct 2020 22:51:11 +, Mladen Gogala wrote:
On Sat, 17 Oct 2020 18:12:16 -0400, Steve wrote:
with open("HOURLYLOG.txt", 'r') as infile:
works but, when I rename the file, the line:
with open("
On 19/10/2020 05:58, Mladen Gogala via Python-list wrote:
On Sun, 18 Oct 2020 21:00:18 +1300, dn wrote:
On 18/10/2020 12:58, Mladen Gogala via Python-list wrote:
On Sat, 17 Oct 2020 22:51:11 +, Mladen Gogala wrote:
BTW, I used this
cp /var/log/syslog ./in-file.log
#!/usr/bin/env python3
rs in some alternate fashion)
How to produce a robust Python/Panda script to coping with all these?
u'historicRatings': [{u'overall': {u'keyQuestionRatings': [{u'name':
u'Safe', u'rating': u'Requires improvement'}, {u'name&#
at we can't "snip" or 'do some gardening', to remove unnecessary
or erroneous material, as the conversation progresses. You will notice
(as below) that this also enables a posting with multiple questions, to
be discussed point-by-point.
Now to work...
> On Sun, 18
On 20/10/2020 04:12, Azhar Ansari wrote:
Hello Python Community,
Kindly help me with the best practice to learn python.
Lots of material over net but its very confusing.
You are so right - it is very confusing!
Different people have different preferences for 'the best way to learn&#x
Hello!
I've been reading the GUI toolkit posts.
If anyone can give me a push in the right python direction on
my needs, I'd be grateful.
This is for business applications, not games.
(but if a game toolkit fits...)
I'm coming from Actionscript,
where there is a lot of GUI fl
> The Python toolkits that I've looked at feel mostly grid-oriented
> or zone-oriented (you can put the button on the left, or middle,
> or right, etc).
I don't think it is easily possible in a cross-platform environment. But even
if your software is one platform only how
sages off list, and sending a self-composed
> summary of the replies back to the list.
>
> -------
Perhaps a more tactical approach would best to figure
out how to do cross-platform python apps.
What is the best approach to determining the user's available screensize,
when they open your python application?
Note that the "desktop" application could be running on Android, iOS,
efore.
I just ignored the grouchy user with the hate over me wanting screensize.
(every list has one of those types, eh? :-)
Screensize, in part, determines the aspect ratio calcs to dynamically
resize and place the components on the screen.
Anyway, I'm pushing on to do this under python.
he geometry of that monitor
monitor = s.get_monitor_geometry(m)
# This is an example output
print("Height: %s, Width: %s" % (monitor.height, monitor.width))
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ibly crushed that you won't use my app(s) /s
Bye, bye.
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On 31/10/2020 16:20, Chris Angelico wrote:
On Sat, Oct 31, 2020 at 1:51 PM Jon Ribbens via Python-list
wrote:
On 2020-10-31, Stefan Ram wrote:
Siddhharth Choudhary writes:
I want to know why x+=1 does not return the value of the variable.
Which value? The old or the new one
On 31/10/2020 19:41, Chris Angelico wrote:
On Sat, Oct 31, 2020 at 4:44 PM dn via Python-list
wrote:
Free advice: whatever you do, don't call @Chris a walrus!
Yeah... I do have quite a moustache, but it doesn't merit a high title
like that! :)
It's the tusks I'd
a large enough collection of words you'd notice the difference.
You're pretty much right, it doesn't go too fast.
I've done this years ago with Python2, had a bit free time now and
wanted to ReLearn Python from starting old projects I've done in past
but can't reme
, working as Chef, now have some
more time, working part time so a got back to old hobby and learning
again, however I see now with age everything is going slower lol
Apologies, I hoped that you had the Py2 code to-hand.
Multiple loops written in Python are likely to be slower than same in
compiled
over the letters / words for each x in letters (rather than
once). For a large enough collection of words you'd notice the
difference.
Multiple loops written in Python are likely to be slower than same in
compiled code - which was probably part of the motivation for @Terry's
response.
probably, this time I came to idea to rewrite using count. But
it seems I'm crap and takes me hell a lot of time to get on it.
Don't beat yourself up about it. As you have already noted, it is
difficult for an 'apprentice' to know things (s)he has yet to learn -
and that was
:
(python 3.7 | debian 10.6 | venv)
But, it could be me.
I'll try it again.
I look forward to seeing your game.
Thanks!
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-
https://mail.python.org/mailman/listinfo/python-list
ccept an arbitrary number of arguments and collect
them into a tuple:
def add(*numbers):
# then the rest of the function as before
+1
BTW, why initialize total to 1?
Because OP copied 'multiply' code, completed earlier?
[OP]
Once you have this code working, as abo
o help you draw comparisons and/or re-factor (improve the
code - or improve the approach) - whether your question is about 'math'
or about 'Python'.
* best to copy-paste directly from the code-editor.
Incidentally, if you would prefer, there is a "Tutor" list where
uot;You got a D ")
if grade >= 50:
print("You failed")
First: open a Python terminal (REPL) and try:
import this
(wrt the post's title, lines three and four apply. This output is known
as "The Zen of Python"!)
Did you ever run the code? Hint: it won
Dear Python Community,
I am new to python. I sucessfully installed python 3.9 from python.org on my
windows 10 pc.
I checked it by typing 'py' in the windows cmd prompt and the system indeed
responds with the version number, then the >>> prompt, and I can run simple
p
-length-encoding/
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ot;])
A worthwhile read is: https://docs.python.org/3/tutorial/classes.html
(including @Alan's most-pertinent warning of the subtleties introduced
by mutable data-structures)
On the other hand, Python has long?always had an aversion to the
object-induced 'boiler-plate' requi
the add and whatever happens after that;
and the delete, likewise.
Otherwise the code must first decide which action-handler, and later,
which result-handler - but aren't they effectively the same decision?
Thus, is the reporting integral to the get (even if they are in separate
routines)?
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generate a generic response?
Is the problem caused by coding the first step before thinking of the overall
task? Try diagramming or pseudo-coding the complete solution (with multiple
approaches), ie the operations AND the printing and exception-handling.
You could have a point, although I do
ng.
You could have a point, although I do have a reasonable idea of what the
task is and coming from a Perl background, Python always feels a bit
like pseudocode anyway (which is one of the things I like about Python).
+1 the ease of Python, but can this be seductive?
Per the comment about Perl/Python
; is being used as part of a path name?
Is this a Python question? ie the above code should be run inside the
Python interpreter (it won't).
MS-Windows has an option to use a comma or a semi-colon as a
list-separator on the 'command line' - as a local/locale definitio
ination/mix of characters - until after you've
entered your [ignorant] choice - twice. Grrr!
--
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giving a suitable solution of this.
Please copy-paste the actual commands being used and error messages
reported.
OpSys?
Source of Python?
Source of numpy?
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On 26/11/2020 08:43, Chris Angelico wrote:
On Thu, Nov 26, 2020 at 6:19 AM dn via Python-list
wrote:
I've got a program which accepts an optional env variable listing a single
or multiple directory for the app to use. I've done a bit of a search and
see both a comma and semicolon
mail.python.org/mailman/listinfo/python-list
o_me/
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On 29/11/2020 20:56, Gabor Urban wrote:
Hi,
I am facing an issue I was not able to solve yet. I have a class saving
messages to a file. The relevant code is:
import OS
if you're wanting the Python Standard Library, this should not be in
upper-case
import sys
are thes
On 30/11/2020 10:36, Gabor Urban wrote:
Hi guys,
I tried to solve the problem once again. I have inserted some print
statements the check the variables.
The actual code (naplo.py) is copy-pasted here:
Thanks = helpful
+1 @Chris' response!
Meantime, what happens if you start python
27;t waste time "camping" the website. Thank you
https://duckduckgo.com/?q=python+web+form+fill
- the third or fourth response seemed to handle a log-on screen.
Although if you're prepared to pay for their time, others may be able to
save your time...
--
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--
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to be operating normally.
What can you suggest
C:\WINDOWS\system32>python
Python 3.9.0a2 (tags/v3.9.0a2:6202d85, Dec 18 2019, 22:54:12) [MSC v.1916
64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more inf
On 06/12/2020 07:41, Barry Fitzgerald via Python-list wrote:
Good day,"
I purchased a book for my son and followed the directions to a T. (Coding Games
in Python)
Whenever I got to the point of of moving the "hello" file over to pgzrun is
where my trouble began.
Its not finding
tion_table )
NB because maketrans() is a static method (of the str[ing] class) we
must use the "str.".
NBB because str.maketrans() checks the length of the two
translation-strings, wrapping that with try...except might be considered
more 'pythonic' than the "first if-cond
On 08/12/2020 12:15, Marco Sulla wrote:
On Tue, 8 Dec 2020 at 00:10, dn via Python-list wrote:
The translation phase is most easily achieved with the built-in
str.translate()
I forgot it :-)
That's down to the rich-ness of the Python eco-system!
IIRC (from previous posts) the
t what (it would appear) is desired:
>>> class Foo:
... bar:str
... @property
... def bar( self ):
... return 1
...
>>> get_type_hints( Foo )
{'bar': }
Yet the 'bar' property will return an int!
...and this is proven/made worse when we add explicit typ
lass-attributes will become (actually be 'hidden'
by) instance-attributes if used on the LHS of an expression within the
class (replicating the 'two' entity problem, discussed earlier).
--
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Has something happened to the Planet Python feed?
- Last update: December 07, 2020 04:48 PM UTC
--
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=dn
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e.
Code: https://bpa.st/KVGA
How this functions should look properly?
In the event of "yes" the function returns a value (return ask).
When the function calls itself, what happens to the return-ed value?
--
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ment
tab-stops as eight-spaces apart.
--
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On 12/12/2020 15:25, Chris Angelico wrote:
On Sat, Dec 12, 2020 at 1:23 PM dn via Python-list
wrote:
Speaking personally, I prefer the code to be included in the email.
However, it would be better to use spaces rather than tabs (Python's
preferred style, per PEP-8) because many email pac
this is inconvenient?
There are alternatives, for example passing in a Queue and put()ing the
data onto the queue. It's quite dependent on what you're trying to do
though.
I don't really need it. I was just wondering and guessed it was
not feasible.
[somewhat simplified]
The way
On 12/12/2020 07:22, dn via Python-list wrote:
Has something happened to the Planet Python feed?
- Last update: December 07, 2020 04:48 PM UTC
Fixed! (Thanks!)
Although, still reported as an 'open' issue
https://github.com/python/planet/issues/446
--
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--
https://mail.
> On Tue, Dec 15, 2020 at 9:57 AM Mark Polesky via Python-list <
> python-list@python.org> wrote:
>
>> Hi.
>>
>> # Running this script
>>
>> D = {'a':1}
>> def get_default():
>> print('Nobody expects this')
&
unction?
Other than personal-preference (which should be respected), and a
uniform default-value, what is the rationale for defaultdict over
dict.get()?
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On 17/12/2020 15:40, Bischoop wrote:
On 2020-12-12, Terry Reedy wrote:
Don't post links to unknown sites. Reduce it to the minimum needed to
exhibit the questionable behavior and include inline with the question.
BTW bpa.st/+python is well known for code sharing among Python
commun
m as advice from folk who have been 'here' and/or using
Python for some time.
--
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n the top programming languages
by Brandon Vigliarolo in Security on December 17, 2020, 9:32 AM PST
A heatmap shows PHP has the most flaws followed by C++, then Java, .Net,
JavaScript, and Python in Veracode's annual security report.
>>>
https://www.techrepublic.com/article/the-worst-bug
tions.
(... and, yes, I know I should maybe move to IMAP but that's too much
work at the moment!)
This morning, reading the results of the Virtual Python Core Developer
Sprint 2020
(https://pyfound.blogspot.com/2020/12/virtual-python-core-developer-sprint.html)
and from there, PEP 594 -
On 22.12.2020 at 20:24 Chris Green wrote:
> Yes, I do have the Python source. The only thing I don't have the
> source for is a .so file and that's why I can't simply migrate the
> program(s) from Python 2 to Python 3.
>
If it's just one .so and that library is
tempting to solve multiple problems in one go.
(I'm writing this from the perspective of 'Apprentice' professionals or
a ComSc student - with any/all due apologies and respect to the OP)
There is much virtue in saying that every Python routine should solve
one problem (and only one
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