Re: python show folder files and not subfolder files

Please advise if the following is ok (i don't think it is) #!/usr/bin/env python3 # -*- coding: utf-8 -*- import os csv_contents = "" output_file = '/home/user/Documents/csv/output3csv.csv' Lpath = '/home/user/Documents/' csv_contents = "FOLDER PATH;Size in Byte;Size in Kb;Size in Mb;Size in Gb

Re: python show folder files and not subfolder files

ok, i came up with if os.path.isfile(path) following path = os.path.join(Lpath, f) and it seems to be ok, no dupplicates or wrong sizes... thanks -- https://mail.python.org/mailman/listinfo/python-list

Use of a variable in parent loop

Hello All, I've been working with Perl a long time and recently started to use Python. I've been surprised by one behavior of Python. In Perl: ===PERL=== #!/usr/pkg/bin/perl use strict; if(4 == 4) { my $name = "Stephane"; print("$name\n" } print("Out $name\n"); = This

Re: Use of a variable in parent loop

On 2020-09-26, Terry Reedy wrote: > Noise. Only 'pass' when there is no other code. Why ? I use pass and continue each time to break a if or a for because emacs understands it and do not break the indentation. Is there any other instruction to end a if than pass and ensure Emacs does not break

Re: Use of a variable in parent loop

On 2020-09-27, [email protected] <[email protected]> wrote: > As ChrisA noted, Python almost always Just Works without declarations. > If you find yourself with a lot of global and/or nonlocal statements, > perhaps you're [still] thinking in another language. I

Re: Use of a variable in parent loop

On 2020-09-27, Stefan Ram wrote: >>Is there any other instruction to end a if than pass and ensure Emacs >>does not break the indentation during a copy paste or an indent-region ? > > We usually do not wish to tie our code to a defective editor. > I use vi, and can assure you that there is no

RE: Use of a variable in parent loop

[email protected] Subject: Re: Use of a variable in parent loop On 2020-09-27 at 15:18:44 +0800, Stephane Tougard via Python-list wrote: > In many non declarative language, if I do print($var), it just prints > and undefined value with returning an error. If I want "many non declarative

Re: Use of a variable in parent loop

On 2020-09-27, Chris Angelico wrote: > If you MUST use a block-end marker, try "# end" instead - at least > then everyone *knows* it's nothing more than a comment. Damn, you could not say that earlier !!! -- https://mail.python.org/mailman/listinfo/python-list

Re: Use of a variable in parent loop

On 2020-09-27, Stefan Ram wrote: >>Is there any other instruction to end a if than pass and ensure Emacs >>does not break the indentation during a copy paste or an indent-region ? > > We usually do not wish to tie our code to a defective editor. > I use vi, and can assure you that there is no

Re: Use of a variable in parent loop

On 2020-09-27, Avi Gross wrote: > But when someone insists Python needs to > change to meet their preconception, I get less sympathetic. To clarify my question, I never asked that Python changes for me, I asked if there was any way to change Python's behavior by using a module or a configuration

Re: Use of a variable in parent loop

On 2020-09-27, Terry Reedy wrote: > emacs with python-mode has been and likely still is used by some > experienced python programmers. I have never seen anyone but a rank Yes, since I discovered that an empty has almost the same effect than a pass to end a block. > The 'pass' line does not mar

Re: Use of a variable in parent loop

On 2020-09-27, Cameron Simpson wrote: >>In many non declarative language, if I do print($var), it just prints >>and undefined value with returning an error. > > And that way lie MANY MANY bugs not detected until an undefined value > actually causes an issue, if that ever happens. In some language

Re: Use of a variable in parent loop

On 2020-09-27, Chris Angelico wrote: > Or maybe Emacs *isn't* breaking it, and it's just an autoindentation > thing. I don't know. >From the discussion I read about this feature, it considers that 'pass' is use to write an empty def() def(); pass So it's logic for it to indent one level

Re: Use of a variable in parent loop

On 2020-09-28, MRAB wrote: > It's used where the language requires a statement. > > In, say, C, you would use empty braces: > > while (process_next_item()) { > /* Do nothing. */ > } If I want to express nothing in C, I put nothing and it works fine. #include int main(int arg

Re: Use of a variable in parent loop

On 2020-09-28, Manfred Lotz wrote: > On Mon, 28 Sep 2020 05:20:20 +0800 > Stephane Tougard wrote: > >> On 2020-09-27, Manfred Lotz wrote: >> > - http://localhost:2015/tutorial/controlflow.html#pass-statements >> ... >> > (In comparison to guys like ChrisA and StefanR and others here I am >> >

Re: Use of a variable in parent loop

On 2020-09-28, Cameron Simpson wrote: > That said, Stephane: I don't believe in "best practice" as _the_ best > practice, but I certainly believe there's "bad practice". I kind of disagree with that, what I mean that there is no bad practice to get the work done. There may be bad practice to wri

Re: Use of a variable in parent loop

On 2020-09-28, Mike Dewhirst wrote: > [1] If you live with Perl non-stop I agree Perl code can be read in > future. But it requires allocation of serious brain-space for me at > least to come back to it. Let's be franc, I can read my own Perl code (very C-ish) without any issue. I live with it si

Re: Use of a variable in parent loop

On 2020-09-27, Manfred Lotz wrote: > - http://localhost:2015/tutorial/controlflow.html#pass-statements ... > (In comparison to guys like ChrisA and StefanR and others here I am also > a Python beginner) To give me a pointer on your localhost, I could guess. -- https://mail.python.org/mailman/lis

Re: Use of a variable in parent loop

On 2020-09-27, Grant Edwards wrote: > Maybe you need to choose different editors and tools. In my world, humans don't adapt to tools but human adapt tools to their needs. > A guy I worked for many years ago used to write BASIC programs in C by > using a bizarre set of pre-processor macros. Whil

Re: Use of a variable in parent loop

On 2020-09-27, MRAB wrote: >> If a extremist Pythonist takes over my code some day, he'll have to >> search and delete hundreds of useless pass. I laugh already thinking >> about it. > He could write some code to do it. I would do it in Perl, LOL. -- https://mail.python.org/mailman/listinfo/pyth

Re: Use of a variable in parent loop

On 2020-09-27, Joe Pfeiffer wrote: > and so forth. What I discovered in fairly short order was that it made > it easier for me to read my own code, but did absolutely nothing for > either me reading other people's code, nor for them reading mine. I > eventually concluded my best move was to just

python if and same instruction line not working

I need to change the script commented out to the one not commented out. Why? # for x in sorted (fr, key=str.lower): # tmpstr = x.rpartition(';')[2] # if x != csv_contents and tmpstr == "folder\n": # csv_contentsB += x # elif x != csv_contents and tmpstr == "

Problem

Tried to open Python 3.8. I have Windows 10. Icon won’t open. -- https://mail.python.org/mailman/listinfo/python-list

Re: Hot reload Flask app?

On 2020-10-01 16:33, [email protected] wrote: Hi, I would like to create a "/reload" view in my Flask app, so I could easily and safely reload it when code, templates etc change. Similar to what happens when running the app with the debug server. I am using Nginx and G

Re: python if and same instruction line not working

On Tuesday, September 29, 2020 at 5:28:22 PM UTC+2, MRAB wrote: > On 2020-09-29 15:42, pascal z via Python-list wrote: > > I need to change the script commented out to the one not commented out. Why? > > > > # for x in sorted (fr, key=str.lower): > > # t

Re: python show folder files and not subfolder files

On Thursday, September 24, 2020 at 4:37:07 PM UTC+2, Terry Reedy wrote: > On 9/23/2020 7:24 PM, pascal z via Python-list wrote: > > Please advise if the following is ok (i don't think it is) > > > > #!/usr/bin/env python3 > > # -*- coding: utf-8 -*- > >

Trying to Download PygameZero

I am in a 8 grade coding class at the moment and my teacher asked me to download a script called pgzero. I can not seem to download pgzer or pygame when i try it shoots me a error message:  ERROR: Command errored out with exit status 1:     command: 'c:\program files\python39\python.exe' -c 'imp

RE: Python's carbon guilt

People have a tendency to go too far in their religious zeal, Peter. We could go back to writing on chalkboards to do calculations then re-use the chalk dust when erasing to write again. Many computers do almost nothing 90+ percent of the time. Want to outlaw those or force them to accept random

Simple question - end a raw string with a single backslash ?

I am trying to write a simple expression to build a raw string that ends in a single backslash. My understanding is that a raw string should ignore attempts at escaping characters but I get this : >>> a = r'end\'   File "", line 1     a = r'end\'   ^ SyntaxError:

Re: Simple question - end a raw string with a single backslash ?

On 10/13/20 4:14 PM, Serhiy Storchaka wrote: 13.10.20 11:52, Tony Flury via Python-list пише: I am trying to write a simple expression to build a raw string that ends in a single backslash. My understanding is that a raw string should ignore attempts at escaping characters but I get this

Re: CLI parsing—with `--help` text—`--foo bar`, how to give additional parameters to `bar`?

Hi Sam, I’ve been using abseil python API. https://abseil.io/docs/python/guides/flags https://abseil.io/docs/python/quickstart It’s a distributed command line system with features that appear to support you

Subprocess Connection Error

Hello, I bought a book called Coding for Beginners to learn how to code using Python. The first few exercises went fine. When I got to the page called Recognizing types and did the exercise and saved it and tried to run the module it comes up with a Subprocess Connection Error. It says, "IDLE's

Re: Simple question - end a raw string with a single backslash ?

On Thu, 15 Oct 2020 21:30:15 +, Stefan Ram wrote: > Tony Flury writes: >> >>> a = r'end' + chr(92) > > Or maybe, > > a = r''' > end\ > '''[ 1: -1 ] > > ? The first and the last line are messy, but in the middle, > the intended string is clearly visible. You can use perl module for

Re: File Name issue

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("HOURLY-LOG.txt", 'r') as infile: > does not. The complaint is: Cannot Assign to operator Try this: with open("HOURLY\-LOG.txt", 'r') as infil

Re: File Name issue

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("HOURLY-LOG.txt", 'r') as infile: >> does not. The complaint is: Cannot Assign

Re: Embedding version in command-line program

On 07/10/2020 12:06, Loris Bennett wrote: Hi, I have written a program, which I can run on the command-line thus mypyprog --version and the get the version, which is currently derived from a variable in the main module file. However, I also have the version in an __init__.py file and in

Re: MERGE SQL in cx_Oracle executemany

On Sat, 17 Oct 2020 21:23:40 -0600, Jason Friedman wrote: >> I'm looking to insert values into an oracle table (my_table) using the >> query below. The insert query works when the PROJECT is not NULL/empty >> (""). However when PROJECT is an empty string(''), the query creates a >> new duplicate

Re: File Name issue

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: >>> On Sat, 17 Oct 2020 18:12:16 -0400, Steve wrote: >>> >>>> with open("HOURLYLOG.

Re: Simple question - end a raw string with a single backslash ?

On Sun, 18 Oct 2020 16:13:16 +0200, Peter J. Holzer wrote: > > Ah, I see, that the sillyness of Perl's grammar-altering modules (which > let you write Perl in Latin (with proper declensions and conjugations, > of course) or Chinese) has found its way to Python > To tell the truth, I only instal

Re: Simple question - end a raw string with a single backslash ?

On Sun, 18 Oct 2020 12:19:18 -0600, Michael Torrie wrote: > Python certainly is procedural. A script starts at the top and executes > through to the bottom and ends, barring any flow control in the middle. > Like Perl you can use it in many different ways and paradigms including > OO if you desi

Re: Simple question - end a raw string with a single backslash ?

On Mon, 19 Oct 2020 02:44:25 +, Stefan Ram wrote: > Mladen Gogala writes: >>In Perl, there are no classes. > > If there are no classes in Perl, then what does > > bless REF,CLASSNAME > > do? bless \$ref will make the given reference a reference to the class. And classes is Perl are

Re: Debugging a memory leak

> On Oct 22, 2020, at 5:51 PM, Pasha Stetsenko wrote: > > Dear Python gurus, > > I'm a maintainer of a python library "datatable" (can be installed from > PyPi), and i've been recently trying to debug a memory leak that occurs in > my library. > The program that exposes the leak is quite simp

Re: Is there a log file that tracks every statement that is being executed when a program is running?

On Sun, 25 Oct 2020 12:14:52 +0100, Maxime S wrote: > Hi, > > You can use the trace module for that: > https://docs.python.org/3.8/library/trace.html > > Personally I tend to put print statement at strategic places instead, I > find that easier to analyse than a full trace but YMMV. > > Maxime

Re: Live Write to File with Code That is Reading File and Writing to Serial Port

> On Oct 28, 2020, at 5:49 AM, ktkelly_1 wrote: > > Currently have a code that takes in a .txt file and submits commands to the > serial. Then it reads the reply from the serial port and writes it to a > hardcoded .txt file. The problem is it doesn't save it live and so if I need > to stop th

Re: Why x+=1 doesn't return x value instead of an object

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? > > Expressions never return values. Except when they're assignment expressions, when they do. -- https://mail.python

Re: Why x+=1 doesn't return x value instead of an object

On 2020-10-31, 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.

RE: Find word by given characters

I, too, have wondered what exactly the point was of the required functionality for SCRABBLE but note you can extend a current word so additional letters may be available in a game but only if they are an exact fit to put before, after, or in middle of your word. But this seems to be a fairly simp

RE: Find word by given characters

Duncan, my comments below yours at end. ---YOURS--- The Counter approach only requires iterating over the letters once to construct the letters bag, then each word once to create the relevant word bag. After that it's (at worst) a couple of lookups and a comparison for each unique character in let

RE: Find word by given characters

My comments at end: -Original Message- From: Python-list On Behalf Of duncan smith Sent: Wednesday, November 4, 2020 1:09 PM To: [email protected] Subject: Re: Find word by given characters On 04/11/2020 04:21, Avi Gross wrote: > Duncan, my comments below yours at end. > > ---YOURS

Re: Is there a conflict of libraries here?

ha! ha! 2 empowering___ we make it. __ +44 1635 887711 On Sunday, November 8, 2020, 01:06:03 a.m. PST, Cameron Simpson wrote: On 07Nov2020 22:57, Steve wrote: >Ok, the light just went out. >I thought I was getting something, but no... > >I will keep on

io.TextIOWrapper.readlines

Hi folks, import io with io.open(filename, ‘r’) as fd: lines = fd.readlines(hint=1000) for line in lines: # do something I was just looking at the io module. io.open(‘file’, ‘r') returns an io.TextIOWrapper object, which has the io.TextIOWrapper.readlines(hint=-1/) method. >>>

Cannot update parso

I cannot update parso because of the rule from jedi: <0.8.0,>=0.7.0 This kind of things happens more often, but normally in less of a week the module that prevents another to be installed is updated and the restriction is lifted. But I think it is about half a year that this restriction is ac

Error issue - Kindly resolve

Dear Sir/Madam,I am trying to install python on my laptop with windows 7, 32 bit operating system with service pac 1 installed. I have installed python 3.7.1 and some more versions but while opening the command prompt always it is showing the message as :The above program can’t start because ap

Python Error

Hi, I had uninstalled and installed Python in Windows 10 but I am getting the error below. Can you please help ? C:\Users\mchak>pythonFatal Python error: init_sys_streams: can't initialize sys standard streamsPython runtime state: core initializedAttributeError: module 'io' has no attribute 'Ope

Re: Python Error

install but it didn't solve the issue. Regards,Mayukh On Monday, November 23, 2020, 06:17:00 PM GMT, Barry Scott wrote: > On 23 Nov 2020, at 14:10, Mayukh Chakraborty via Python-list > wrote: > > Hi, > I had uninstalled and installed Python in Windows 10 but I am

Re: Python Error

nstall but it didn't solve the issue. Regards,MayukhOn Monday, November 23, 2020, 06:34:43 PM GMT, Terry Reedy wrote: On 11/23/2020 9:10 AM, Mayukh Chakraborty via Python-list wrote: > Hi, > I had uninstalled and installed Python in Windows 10 but I am getting the > error be

Re: Python Error

: Python3.9 from "C:\Users\mchak\AppData\Local\Programs\Python\Python39\python.exe"  * The NumPy version is: "1.19.4" and make sure that they are the versions you expect.Please carefully study the documentation linked above for further help. Original error was: No module na

Re: Python Error

Thanks - I am able to launch 'py' from the command prompt and it gives me the python versions installed in my machine from python.org website. However, when I am trying to execute a python program from command prompt, I am getting the error below. I had reinstalled python packages (numpy, pandas

Re: Python Error

09:27:00 PM GMT, Barry wrote: Two observations. Python.exe is not on your PATH. But that does not matter as you can use the py command instead And nymph may not be available for python 3.9 yet. Check on pypi to see if there is a build for 3.9. Maybe use 3.8 for the time being. Barry &

Re: Fw: See example

On 05/12/2020 09:17, Dan Stromberg wrote: On Fri, Dec 4, 2020 at 12:01 PM dn via Python-list mailto:[email protected]>> wrote: On 05/12/2020 07:57, Arthur R. Ott wrote: ... >     Microsoft Windows [Version 10.0.19042.630] >     (c) 2020 Microsoft Corp

Error

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 a path because I'm getting this "pgzrun is not recognized as an internal or e

Re: Letter replacer - suggestions?

On 2020-12-07, Chris Angelico wrote: > On Tue, Dec 8, 2020 at 6:41 AM Grant Edwards > wrote: >> On 2020-12-07, MRAB wrote: >> > Avoid a 'bare' except unless you _really_ mean it, which is >> > virtually never. Catch only those exceptions that you're going to >> > handle. >> >> And sometimes "ha

RE: Returning from a multiple stacked call at once

As always, it may be useful to know WHY the questioner wants to skip intermediate functions already in progress and jump back to some unspecified earlier level. There is a reason why functions are "stacked" and there are data structures that really may need to be unwound. But if the question is no

dict.get(key, default) evaluates default even if key exists

Hi. # Running this script D = {'a':1} def get_default():     print('Nobody expects this')     return 0 print(D.get('a', get_default())) # ...generates this output: Nobody expects this 1 ### Since I'm brand new to this community, I thought I'd ask here first... Is this worthy of a bug rep

Re: dict.get(key, default) evaluates default even if key exists

Storchaka wrote: 15.12.20 19:07, Mark Polesky via Python-list пише: > # Running this script > > D = {'a':1} > def get_default(): >     print('Nobody expects this') >     return 0 > print(D.get('a', get_default())) > >

RE: How do you find what exceptions a class can throw?

The original question sounded like someone was asking what errors might be thrown for a routine they wrote that used other components that might directly throw exceptions or called yet others, ad nauseum. Some have questioned the purpose. I can well imagine that if such info was available, you co

RE: How do you find what exceptions a class can throw?

I agree Chris, that your original question is quite to the point. But is it always? If you do something that tries to read a file (such as opening a database to send queries) on a remote server, how many different things might time out for various reasons? Some may resolve if you keep trying an

RE: Which method to check if string index is queal to character.

This may be a nit, but can we agree all valid email addresses as used today have more than an @ symbol? I see it as requiring at least one character before the @ that come from a list of allowed characters (perhaps not ASCII) but does not include the symbol @ again. It is normally followed by some

RE: Which method to check if string index is queal to character.

. Dropping out, ... -Original Message- From: Python-list On Behalf Of Chris Angelico Sent: Monday, December 28, 2020 8:02 PM To: Python Subject: Re: Which method to check if string index is queal to character. On Tue, Dec 29, 2020 at 10:08 AM Avi Gross via Python-list wrote: > > This

Re: Funny error message

On 1/1/21 11:46 AM, Bob van der Poel wrote: > When I run python from the command line and generate an error I get the > following: > > Python 3.8.5 (default, Jul 28 2020, 12:59:40) > [GCC 9.3.0] on linux > Type "help", "copyright", "credits" or "license" for more information. z > /home/bob/.l

Re: Funny error message

On 1/2/21 6:35 AM, Bob van der Poel wrote: > Found it! Well done! >> I had the proper urllib3 installed. But, in my .local/lib/ a previous >> version was installed. Removing .local/lib/python3.8 has resolved the >> problem. >> >> Anyone hazard a guess as to why I had a .local tre

Re: Funny error message

On 1/2/21 9:39 AM, Bob van der Poel wrote: > > > On Fri, Jan 1, 2021 at 12:17 PM DL Neil via Python-list > mailto:[email protected]>> wrote: > > On 1/2/21 6:35 AM, Bob van der Poel wrote: > > Found it! > > Well done! > > > &

learning python building 2nd app, need advices

Hi, This is a python app I was working on, can you help making it a beautiful looking app like bleachbit or ccleaner? The whole code below (what it does: it lists all folders and files from a specified path and tells some infos like size in mb or gb... and export it to a csv file for further p

Re: learning python building 2nd app, need advices

any way to attach a file because I loose indentation? -- https://mail.python.org/mailman/listinfo/python-list

Re: learning python building 2nd app, need advices

And something important to this app, is about listing files, how to avoid listing small application files parts .ini and binary files so if it's an application it would tell the size of of the folder of this application and not list the content or make it optionnal? -- https://mail.python.org/m

Re: learning python building 2nd app, need advices

tab to space on linux is not something easy to do, I had to launch windows and use notepad++. Anyway, indentation should all be converted to spaces below #!/usr/bin/env python3 # -*- coding: utf-8 -*- import locale import os import csv from tkinter import messagebox as msg try: from tkinter

Re: learning python building 2nd app, need advices

tab to space on linux is not something easy to do, I had to launch windows and use notepad++. Anyway, indentation should all be converted to spaces below #!/usr/bin/env python3 # -*- coding: utf-8 -*- import locale import os import csv from tkinter import messagebox as msg try: from tkinte

Re: learning python building 2nd app, need advices

#!/usr/bin/env python3 # -*- coding: utf-8 -*- import locale import os import csv from tkinter import messagebox as msg try: from tkinter import * import ttk except: import tkinter as tk #GUI package from tkinter import ttk def fx_BasicListing(): #argx mode = 1 pour basic li

Re: learning python building 2nd app, need advices

On Monday, January 11, 2021 at 12:00:28 PM UTC, Loris Bennett wrote: > pascal z writes: > > > tab to space on linux is not something easy to do > > I would argue that you are mistaken, although that depends somewhat on > your definition of 'easy'. > > > , I had to launch windows and use not

Re: learning python building 2nd app, need advices

On Monday, January 11, 2021 at 1:45:31 PM UTC, Greg Ewing wrote: > On 12/01/21 1:12 am, pascal z wrote: > > As alternative, I pasted it into github and pasted it back into this page, > > it's ok when pasting but when posting it fails keeping spaces... > The indentation in your last three posts lo

Re: learning python building 2nd app, need advices

On Monday, January 11, 2021 at 2:07:03 PM UTC, Chris Angelico wrote: > On Tue, Jan 12, 2021 at 1:01 AM pascal z via Python-list > wrote: > > > > On Monday, January 11, 2021 at 1:45:31 PM UTC, Greg Ewing wrote: > > > On 12/01/21 1:12 am, pascal z wrote: > >

Re: on writing a number as 2^s * q, where q is odd

jak writes: Alan Bawden ha scritto: > Julieta Shem writes: > > How would you write this procedure? > def powers_of_2_in(n): > ... > > def powers_of_2_in(n): > return (n ^ (n - 1)).bit_count() - 1 > Great solution, unfortunately the return va

Re: on writing a number as 2^s * q, where q is odd

Alan Bawden writes: > jak writes: > >Alan Bawden ha scritto: >> Julieta Shem writes: >> >> How would you write this procedure? >> def powers_of_2_in(n): >> ... >> >> def powers_of_2_in(n): >> return (n ^ (n - 1)).bit_count() - 1 >> >

Re: on writing a number as 2^s * q, where q is odd

jak writes: [...] >> --8<---cut here---start->8--- >> def powers_of_2_in(n): >>if remainder(n, 2) != 0: >> return 0, n >>else: >> s, r = powers_of_2_in(n // 2) >> return 1 + s, r >> --8<---cut here---end--

Re: on writing a number as 2^s * q, where q is odd

On Sun, 3 Dec 2023 at 10:25, Julieta Shem via Python-list wrote: > > Alan Bawden writes: > > > > def powers_of_2_in(n): > > bc = (n ^ (n - 1)).bit_count() - 1 > > return bc, n >> bc > > That's pretty fancy and likely the fastest. It might b

Request: inspect: signature & getfullargspec & getcallargs

Hello, I have a request. Would it be possible to include `follow_wrapper_chains` and `skip_bound_arg` arguments to higher level functions of `inspect` module? Would exposing them, but setting defaults to what they currently are, be possible? I sometimes need: * `getcallargs`, but with

Re: Request: inspect: signature & getfullargspec & getcallargs

> On 4 Dec 2023, at 02:29, Dom Grigonis via Python-list > wrote: > > Hello, > > I have a request. > > Would it be possible to include `follow_wrapper_chains` and `skip_bound_arg` > arguments to higher level functions of `inspect` module? > > Would expos

Re: on writing a number as 2^s * q, where q is odd

jak writes: Oscar Benjamin ha scritto: ... If we now use the function being discussed: powers_of_2_in(n) (63, 1) we can see that the bit_count() method had to do 63 iterations to count the bits I certainly hope that the bit_count method doesn't count bits by iterating

How/where to store calibration values - written by program A, read by program B

Is there a neat, pythonic way to store values which are 'sometimes' changed? My particular case at the moment is calibration values for ADC inputs which are set by running a calibration program and used by lots of programs which display the values or do calculations with them. From the program re

Re: How/where to store calibration values - written by program A, read by program B

On 12/5/23 07:37, Chris Green via Python-list wrote: Is there a neat, pythonic way to store values which are 'sometimes' changed? My particular case at the moment is calibration values for ADC inputs which are set by running a calibration program and used by lots of programs which d

Re: How/where to store calibration values - written by program A, read by program B

> On 5 Dec 2023, at 14:37, Chris Green via Python-list > wrote: > > Are there any Python modules aimed specifically at this sort of > requirement? I tend to use JSON for this type of thing. Suggest that you use the options to pretty print the json that is saved so that a hu

Re: How/where to store calibration values - written by program A, read by program B

On 12/6/23 03:37, Chris Green via Python-list wrote: Is there a neat, pythonic way to store values which are 'sometimes' changed? My particular case at the moment is calibration values for ADC inputs which are set by running a calibration program and used by lots of programs which d

Re: How/where to store calibration values - written by program A, read by program B

Apologies: neglected suggested web.refs: https://datagy.io/python-environment-variables/ https://pypi.org/project/json_environ/ -- Regards =dn -- https://mail.python.org/mailman/listinfo/python-list

Re: How/where to store calibration values - written by program A, read by program B

On 12/5/2023 11:50 AM, MRAB via Python-list wrote: On 2023-12-05 14:37, Chris Green via Python-list wrote: Is there a neat, pythonic way to store values which are 'sometimes' changed? My particular case at the moment is calibration values for ADC inputs which are set by running a c

Re: How/where to store calibration values - written by program A, read by program B

Thomas Passin wrote: > On 12/5/2023 11:50 AM, MRAB via Python-list wrote: > > On 2023-12-05 14:37, Chris Green via Python-list wrote: > >> Is there a neat, pythonic way to store values which are 'sometimes' > >> changed? > >> > >> My part

Re: How/where to store calibration values - written by program A, read by program B

Paul Rubin wrote: > Chris Green writes: > > I could simply write the values to a file (or a database) and I > > suspect that this may be the best answer but it does make retrieving > > the values different from getting all other (nearly) constant values. > > I've used configparser for this, thou

Re: How/where to store calibration values - written by program A, read by program B

Thank you everyone for all the suggestions, I now have several possibilities to follow up. :-) -- Chris Green · -- https://mail.python.org/mailman/listinfo/python-list

Re: How/where to store calibration values - written by program A, read by program B

On 2023-12-06 at 09:32:02 +, Chris Green via Python-list wrote: > Thomas Passin wrote: [...] > > Just go with an .ini file. Simple, well-supported by the standard > > library. And it gives you key/value pairs. > > > My requirement is *slightly* more complex t

Re: How/where to store calibration values - written by program A, read by program B

> On 6 Dec 2023, at 09:32, Chris Green via Python-list > wrote: > > My requirement is *slightly* more complex than just key value pairs, > it has one level of hierarchy, e.g.:- > >KEY1: > a: v1 > c: v3 > d: v4 >KEY2: >

Re: How/where to store calibration values - written by program A, read by program B

On 2023-12-06, Stefan Ram wrote: > Chris Green writes: >>KEY1: >> a: v1 >> c: v3 >> d: v4 >>KEY2: >> a: v7 >> b: v5 >> d: v6 > > That maps nicely to two directories with three files > (under an application-specific configuration directory). Or an .ini fil

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