[Python-announce] SCons 4.6.0 released

A new SCons release, 4.6.0, is now available on the SCons download page: https://scons.org/pages/download.html Here is a summary of the changes since 4.5.2: NEW FUNCTIONALITY - - D compilers : added support for generation of .di interface files. New variables

[Python-announce] SCons 4.5.2 Released

A new SCons release, 4.5.2, is now available on the SCons download page: https://scons.org/pages/download.html Here is a summary of the changes since 4.5.1: FIXES - - Fix a problem (#4321) in 4.5.0/4.5.1 where ParseConfig could cause an exception in MergeFlags when the result would

[Python-announce] SCons 4.5.1 Released

A new SCons release, 4.5.1, is now available on the SCons download page: https://scons.org/pages/download.html Here is a summary of the changes since 4.5.0: FIXES - - Fix a problem in 4.5.0 where using something like the following code will cause a Clone()'d environment to share the

[Python-announce] SCons 4.5.0 Released

A new SCons release, 4.5.0, is now available on the SCons download page: https://scons.org/pages/download.html Here is a summary of the changes since 4.4.0: NOTE: If you build with Python 3.10.0 and then rebuild with 3.10.1 (or higher), you may see unexpected rebuilds. This is due to

[Python-announce] SCons 4.4.0 Released

A new SCons release, 4.4.0, is now available on the SCons download page: https://scons.org/pages/download.html Here is a summary of the changes since 4.3.0: NOTE: If you build with Python 3.10.0 and then rebuild with 3.10.1 (or higher), you may see unexpected rebuilds. This is due

[Python-announce] SCons 4.3.0 released

A new SCons release, 4.3.0, is now available on the SCons download page: https://scons.org/pages/download.html NOTE: 4.3.0 now requires Python 3.6.0 and above. Python 3.5.x is no longer supported Here is a summary of the changes since 4.2.0: NEW FUNCTIONALITY - - Ninja

[issue45825] Heap Segmentation Fault

Bill Borskey added the comment: No worries. I find bugs in my day job, thought this might be a useful segfault but it segfaults because it’s incrementing that reference count on the pyobj that don’t exist. So pretty lame. I did spend an hour tracking it down so I thought I’d let y’all know

[issue45825] Heap Segmentation Fault

New submission from Bill Borskey : Dereferencing a python object that does not exist through ctypes caused a segfault in pymalloc_alloc. rdi: 0x0006 rsi: 0x0006 0 org.python.python 0x0001081ee277 pymalloc_alloc + 74 1 org.python.python

Re: Current thinking on required options

Usage: grocli check|add|delete [-u USERS ...] Bill -- INTERNET: b...@celestial.com Bill Campbell; Celestial Software LLC URL: http://www2.celestial.com/ 6641 E. Mercer Way Mobile: (206) 947-5591 PO Box 820 Fax:(206) 232-9186 Mercer Island, WA 98040-0820 Force a

[issue43745] ssl.OPENSSL_VERSION still reporting 1.1.1i on windows 3.8.9/3.9.4

Bill Collins added the comment: Confirmed, thanks! -- ___ Python tracker <https://bugs.python.org/issue43745> ___ ___ Python-bugs-list mailing list Unsubscribe:

[issue43745] ssl.OPENSSL_VERSION still reporting 1.1.1i on windows 3.8.9/3.9.4

Bill Collins added the comment: The embeddable dists for 3.9.4 have updated, but the 3.8.9 packages are still showing the builds from April 2nd. -- ___ Python tracker <https://bugs.python.org/issue43

[issue43745] ssl.OPENSSL_VERSION still reporting 1.1.1i on windows 3.8.9/3.9.4

Bill Collins added the comment: Thanks for the quick action on this! I've downloaded the new 3.8.9/3.9.4 installers, but they are unable to run over my existing 3.8.9/3.9.4 installs; "Unable to install python 3.9.4 (64-bit) due to an existing install." This is probably fine as

[issue43745] ssl.OPENSSL_VERSION still reporting 1.1.1i on windows 3.8.9/3.9.4

New submission from Bill Collins : >>> import sys,ssl >>> sys.version '3.9.4 (tags/v3.9.4:1f2e308, Apr 4 2021, 13:27:16) [MSC v.1928 64 bit (AMD64)]' >>> ssl.OPENSSL_VERSION 'OpenSSL 1.1.1i 8 Dec 2020' I may well be holding it wrong, but something seems off. ---

Re: How to remove "" from starting of a string if provided by the user

(.*)(\1)$') slast = None while slast != s: slast = s s = pat.cub(r'\2', s) return s # end stripquotes(s) Bill -- INTERNET: b...@celestial.com Bill Campbell; Celestial Software LLC URL: http://www2.celestial.com/ 6641 E. Mercer Way Mobile: (206) 947

SCons 4.0.1 Released

A new SCons release, 4.0.1, is now available on the SCons download page: https://scons.org/pages/download.html Here is a summary of the changes since 4.0.1: NEW FUNCTIONALITY - Added Environment() variable TEMPFILEDIR which allows setting the directory which temp

[issue39085] Improve docs for await expression

Bill Wallace added the comment: There are a few other places on the documentation that are imprecise or misleading for await. While the information needed is scattered around the docs, I think these can also be improved. I'm pretty sure these fit with this issue. Developing with asyncio

Re: Missing python curses functions?

alent is attr_get() which gets the current >attributes. I haven't looked for it. ... >Is anyone other than me still even using Python curses? :-) Raises hand. Bill -- INTERNET: b...@celestial.com Bill Campbell; Celestial Software LLC URL: http://www2.celestial.com/ 6641 E. Mercer Way

Re: OT: ALGOL 60 at 60

their roots in doing a lot of scientific programming in ALGOL on the B-5500, then in BPL (Burroughs Programming Language) on Burroughs Medium Systems, B-2500->B-4500. Bill -- INTERNET: b...@celestial.com Bill Campbell; Celestial Software LLC URL: http://www2.celestial.com/ 6641 E. Mercer Way Mobi

Re: [Scons-dev] SCons 3.1.2 Released

Glad that helped! Big thanks to Mats Wichmann for that one! On Sat, Dec 21, 2019 at 10:41 AM Eric Fahlgren wrote: > On Mon, Dec 16, 2019 at 7:02 PM Bill Deegan > wrote: > >> - EXPERIMENTAL NEW FEATURE: Enable caching MSVC configuration >> If SCONS_CACHE_MSVC_CON

SCons 3.1.2 Released

A new SCons checkpoint release, 3.1.2, is now available on the SCons download page: https://scons.org/pages/download.html Here is a summary of the changes since 3.1.1: NOTE: The 4.0.0 Release of SCons will drop Python 2.7 Support NEW FUNCTIONALITY - Added debug option

Re: Vim settings for Python (was: tab replace to space 4)

On Sat, Dec 07, 2019, Peter J. Holzer wrote: >As an aside, to prevent vim from inserting tabs in the first place, set >expandtab >sw=4 >and maybe also >ts=4 Inserting a comment in the file like this makes thing easy. # vim: expandtab sw=4 ts=4 nows wm=0 Bill --

Re: Using Makefiles in Python projects

You could use SCons (native python... ) On Mon, Nov 11, 2019 at 2:04 PM Grant Edwards wrote: > On 2019-11-11, Rhodri James wrote: > >> I'm sure it's possible to write Makefiles that work with both GNU make > >> and NMake, but I imagine it's a rather limiting and thankless > enterprise. > >> >

Re: Would you be interested in this Python open source project?

You might just consider working with the BuildBot project to add support for lighter weight build workers. Re-Re-Re-inventing the wheel is almost always wasted effort. On Tue, Oct 8, 2019 at 8:33 AM Rhodri James wrote: > On 08/10/2019 11:22, Simon Connah wrote: > > I'm posting this message as a

Announcing Methodfinder

t;>> methodfinder.find(1,2) == 3 1+2 1^2 1|2 2+1 2^1 2|1 >>> methodfinder.find(1,1) == 1 1&1 1**1 1*1 1.__class__(1) 1.denominator 1.numerator 1.real 1//1 1|1 math.gcd(1, 1) max(1, 1) min(1, 1) pow(1, 1) round(1, 1) >>> methodfinder.find([1,2], '__iter__') == True hasattr([1, 2], '__iter__') Bill Six -- https://mail.python.org/mailman/listinfo/python-list

[issue38014] Python 3.7 does not compile

Bill Minasian added the comment: Under OSX 10.15 beta and Xcode 11.0 beta the following does not work: ./configure --enable-framework DYLD_FRAMEWORK_PATH=/Users/bill/cpython ./python.exe -E -S -m sysconfig --generate-posix-vars ;\ if test $? -ne 0 ; then \ echo

SCons 3.1.1 Released

SCons - a software construction tool What is SCons? SCons is an Open Source software construction tool—that is, a next-generation build tool. Think of SCons as an improved, cross-platform substitute for the classic Make utility with integrated functionality similar to

[issue37654] 2to3 no-ops on embeddable distribution

New submission from Bill Collins : Firstly, I'd acknowledge that expecting 2to3 to work on the embeddable distribution might be the problem, but the mode of failure is silent and delayed. The problem is that 2to3 loads fix names by searching for files in a package that end in '.py' (https

[issue37641] Embeddable distribution pyc filenames show build machine location

New submission from Bill Collins : pyc files within the embeddable zip are compiled with their filename as the temporary directory in which they are compiled. Thus, stack traces will appear as (e.g.) D:\obj\windows-release\37win32_Release\msi_python\zip_win32\image.py, which is a little

SCons 3.1.0 Released

A new SCons checkpoint release, 3.1.0, is now available on the SCons download page: https://scons.org/pages/download.html SCons is an Open Source software construction tool—that is, a next-generation build tool. Think of SCons as an improved, cross-platform substitute for the classic

Re: pip vs python -m pip?

you must be picking up pip from a different python installl (or virtualenv) than you are picking up python. Check your %PATH% On Fri, Jun 21, 2019 at 6:29 AM Malcolm Greene wrote: > 64-bit Python 3.6.8 running on Windows with a virtual environment > activated. > > "pip -v" reports 19.0.3 >

SCons 3.0.5 Released

A new SCons release, 3.0.5, is now available on the SCons download page: https://scons.org/pages/download.html And via pypi: pip install scons SCons is a tool for building software (and other files). SCons is implemented in Python, and its "configuration files" are actually

Re: Convert Windows paths to Linux style paths

rs plus some other platform specific logic? See os.path.join Bill -- INTERNET: b...@celestial.com Bill Campbell; Celestial Software LLC URL: http://www2.celestial.com/ 6641 E. Mercer Way Mobile: (206) 947-5591 PO Box 820 Fax:(206) 232-9186 Mercer Island, WA 98040-0820 The

Re: preferences file

h the ConfigParser libraries. >3. File location? I'm using Ubuntu and I believe that the correct location >would be home/.config/ . What about Mac and Windows? See above. Same for Mac. I don't do Windows. Bill -- INTERNET: b...@celestial.com Bill Campbell; Celestial Software LLC URL: http://

SCons 3.0.4 Release

A new SCons release, 3.0.4, is now available on the SCons download page: http://www.scons.org/download.php Or via pypi: pip install scons Here is a summary of the changes since 3.0.3: NEW FUNCTIONALITY - Added TEMPFILESUFFIX to allow user to specify suffix for

SCons Version 3.0.3 Released

A new SCons release, 3.0.3, is now available on the SCons download page: https://scons.org/pages/download.html Here is a summary of the changes since 3.0.1: NEW FUNCTIONALITY - Properly support versioned shared libraries for MacOS. We've also introduced two new env

SCons 3.0.2 Release

A new SCons release, 3.0.2, is now available on the SCons download page: https://scons.org/pages/download.html Here is a summary of the changes since 3.0.1: NEW FUNCTIONALITY - Properly support versioned shared libraries for MacOS. We've also introduced two new env

Re: [Tutor] Unable to get the gateway IP of wlan interface using python code

tr(f.read().strip())* This command should get the gateway IP. Linux: cmd = "ip route list | awk '/^default/{print $3}'" or perhaps Linux: cmd = "netstat -rn | awk '/^0.0.0.0/{print $2}'" OSX: cmd = "netstat -rn | awk '/^default/{print $2}'" I don't have a freebsd system

Re: Google weirdness

I also got such. I'm guessing your track record of searches has flagged you as someone they might want to hire. On Fri, Jul 13, 2018 at 5:36 AM, Steven D'Aprano < steve+comp.lang.pyt...@pearwood.info> wrote: > On Thu, 12 Jul 2018 22:31:35 -0400, Travis McGee wrote: > > > I somehow managed to

Splitting up large python module impact on performance?

Greetings, I'm doing some refactoring on a fairly large python codebase. Some of the files are > 4000 lines long and contain many classes. Should I expect any performance hit from splitting some of the classes out to other files? Thanks, Bill -- https://mail.python.org/mailman/listinfo/pyt

Re: [Python-Dev] [RELEASE] Python 2.7.15

Is it possible to get the release notes included on the download page(s)? On Tue, May 1, 2018 at 10:35 AM, Guido van Rossum wrote: > Simple. I misread "latest" for "last" and was hopeful that no new bugs > would need to be fixed between now and 2020. I will post a correction

Re: www.python.org down

back up for me. On Mon, Apr 30, 2018 at 2:26 PM, Mark Lawrence wrote: > On 30/04/18 19:17, Paul Moore wrote: > >> It's working for me now. >> Paul >> >> On 30 April 2018 at 18:38, Jorge Gimeno wrote: >> >>> Not sure who to report to, but the site

Re: www.python.org down

Still 502 for me. On Mon, Apr 30, 2018 at 2:17 PM, Paul Moore wrote: > It's working for me now. > Paul > > On 30 April 2018 at 18:38, Jorge Gimeno wrote: > > Not sure who to report to, but the site comes back with a 503. Anyone > know > > where I can

Re: www.python.org down

Ditto. I see a 502. On Mon, Apr 30, 2018 at 1:38 PM, Jorge Gimeno wrote: > Not sure who to report to, but the site comes back with a 503. Anyone know > where I can direct this to? > > -Jorge L. Gimeno > -- > https://mail.python.org/mailman/listinfo/python-list > --

Re: Minmax tictactoe :c Cannot understand why this does not work

You need a good lesson in "program documentation". Your code looks terrible--really! fifii.ge...@gmail.com wrote: class AiMove: def __init__(self): self.x = -1 self.y=-1 self.score = 0 def Imprimir(Matriz,n): for i in range(n):

Re: please test the new PyPI (now in beta)

Re color. Would the python.org background color (which is darker) work? To my eyes the background on pypi looks like the highlight color on python.org (I've said this earlier, but just curious if that's what others see as well) On Thu, Mar 29, 2018 at 2:33 PM, Ethan Furman

Re: please test the new PyPI (now in beta)

The back ground blue on the pypi page is the highlight blue on the python.org page, they should change the color to match to background python.org color. -Bill On Tue, Mar 27, 2018 at 7:50 AM, Steven D'Aprano < steve+comp.lang.pyt...@pearwood.info> wrote: > On Tue, 27 Mar 2018 22:25

Re: Python gotcha of the day

Dan Sommers wrote: On Wed, 14 Mar 2018 04:08:30 +, Steven D'Aprano wrote: Explain the difference between these two triple-quoted strings: But remove the spaces, and two of the quotation marks disappear: py> """\"" '"' That's (a) a triple quoted string containing a single escaped

Re: Are the critiques in "All the things I hate about Python" valid?

boB Stepp wrote: This article is written by Nathan Murthy, a staff software engineer at Tesla. The article is found at: https://medium.com/@natemurthy/all-the-things-i-hate-about-python-5c5ff5fda95e Apparently he chose his article title as "click bait". Apparently he does not really hate

Re: correctness proof for alpha-beta algorithm

Steve D'Aprano wrote: On Thu, 21 Dec 2017 08:37 am, Bill wrote: namenobodywa...@gmail.com wrote: On Tuesday, December 19, 2017 at 3:28:39 PM UTC-8, Steve D'Aprano wrote: Does this have anything specifically to do with Python programming? i'm working on a game-playing script (ie: in python

Re: correctness proof for alpha-beta algorithm

namenobodywa...@gmail.com wrote: On Tuesday, December 19, 2017 at 3:28:39 PM UTC-8, Steve D'Aprano wrote: Does this have anything specifically to do with Python programming? i'm working on a game-playing script (ie: in python), i want to incorporate pruning into my search algorithm, and i'd

Re: adding elif to for

bob gailer wrote: Has any thought been given to adding elif to the for statement? I don't think it is a good idea because it needlessly, from my point of view, embeds too much complexity into a single construct (making it more difficult to maintain, for instance). That's what language

Re: Python Learning

quot;know it all". ; )The point of college is more about teaching students to think rather than in being efficient. I have little doubt that a tech school could "get through everything" much faster. Bill -- https://mail.python.org/mailman/listinfo/python-list

Re: Python Learning

Chris Angelico wrote: On Sun, Dec 17, 2017 at 12:01 PM, Bill <bill_nos...@noway.net> wrote: I think we are talking about the same people. But in college, the prerequisite of "at least co-enrolled in pre-calc", turned out to be the right one (based upon quite a lot of tea

Re: Python Learning

Chris Angelico wrote: On Mon, Dec 18, 2017 at 4:04 PM, Chris Angelico <ros...@gmail.com> wrote: On Mon, Dec 18, 2017 at 3:54 PM, Bill <bill_nos...@noway.net> wrote: Chris Angelico wrote: I don't know about vtables as needing to be in ANY programming course. They're part of a

Re: Python Learning

Chris Angelico wrote: I agree with some of that, but you then take it to absurdity. You most certainly CAN drive a car without knowing how one works; in fact, with this century's cars, I think that's very much the case. How many people REALLY know what happens when you push the accelerator

Re: Python Learning

Chris Angelico wrote: I don't know about vtables as needing to be in ANY programming course. They're part of a "let's dive into the internals of C++" course. You certainly don't need them to understand how things work in Python, because they don't exist; and I'm doubtful that you need to explain

Re: Python Learning

Chris Angelico wrote: I don't know about vtables as needing to be in ANY programming course. They're part of a "let's dive into the internals of C++" course. You certainly don't need them to understand how things work in Python, because they don't exist; and I'm doubtful that you need to

Re: Python Learning

Chris Angelico wrote: On Mon, Dec 18, 2017 at 11:31 AM, Bill <bill_nos...@noway.net> wrote: Larry Martell wrote: So, your experience is that the style of learning you offer is unsuitable to anyone who doesn't have some background in algebra. That's fine. For your course, you set the p

Re: Python Learning

Chris Angelico wrote: On Mon, Dec 18, 2017 at 6:51 AM, Bill <bill_nos...@noway.net> wrote: The point is that it takes a certain amount of what is referred to as "mathematical maturity" (not mathematical knowledge) to digest a book concerning computer programming. Emphasis on *

Re: Python Learning

Gregory Ewing wrote: Bill wrote: In my years of teaching experience, students who came to college without the equivalent of "college algebra" were under-prepared for what was expected of them. This could be simply because it weeds out people who aren't good at the required style o

Re: Python Learning

Larry Martell wrote: So, your experience is that the style of learning you offer is unsuitable to anyone who doesn't have some background in algebra. That's fine. For your course, you set the prereqs. But that's not the only way for someone to get into coding. You do NOT have to go to college

Re: Python Learning

Rustom Mody wrote: In response to Rustom Mody wrote: On Saturday, December 16, 2017 at 9:45:17 AM UTC+5:30, Bill wrote: so it really doesn't make that much difference where one starts, just "Do It!". : ) Really ¿? https://en.wikipedia.org/wiki/Principles_of_learning#Primacy

Re: Python Learning

Gregory Ewing wrote: Bill wrote: In my experience, if they do not have the basic (~pre-calc) math behind them, then learning from a textbook on a programming language, say, may be a bit beyond them. Very little mathematical *knowledge* is needed to get started with programming. You can do

Re: Python Learning

Rustom Mody (Rustom Mody) wrote: On Saturday, December 16, 2017 at 9:45:17 AM UTC+5:30, Bill wrote: Chris Angelico wrote: On Sat, Dec 16, 2017 at 8:51 AM, Bill wrote: Varun R wrote: Hi All, I'm new to programming, can anyone guide me, how to start learning python programming language,...plz

Re: Python Learning

Chris Angelico wrote: On Sat, Dec 16, 2017 at 8:51 AM, Bill <bill_nos...@noway.net> wrote: Varun R wrote: Hi All, I'm new to programming, can anyone guide me, how to start learning python programming language,...plz suggest some books also. Thanks all Are you sure you want to learn

Re: Python Learning

Varun R wrote: Hi All, I'm new to programming, can anyone guide me, how to start learning python programming language,...plz suggest some books also. Thanks all Are you sure you want to learn Python first? Python does enough things "behind the scene" that it makes me question the wisdom of

Re: Processing Game Help

sooner I start doing that, the sooner my debugging session is over. Good luck! Bill As you can see, I tried using globals in order use variables from previous classes, but nothing has worked. For this specific approach, no error message popped up, but nothing happened either. Thanks so much! COLORS

Re: Python homework

I think carelessness in choosing variable names may be at the root of the problem. nick.martin...@aol.com wrote: I have a question on my homework. My homework is to write a program in which the computer simulates the rolling of a die 50 times and then prints (i). the most frequent side of

SCons 3.0.1 released

SCons - a software construction tool Release Notes This is SCons, a tool for building software (and other files). SCons is implemented in Python, and its "configuration files" are actually Python scripts, allowing you to use the full power of a

Re: Easiest way to access C module in Python

John Pote wrote: Hi all, I have successfully used Python to perform unit and integration tests in the past and I'd like to do the same for some C modules I'm working with at work. There seem to be a number of ways of doing this but being busy at work and home I looking for the approach with

Re: Getting started with python

subhendu.pand...@gmail.com wrote: Hi, Could you please help me with the below if possible: Possible and reasonable are two different things. Why don't you try some web searches and try to answer some of your own questions. I offer this advice as a Python newbe myself. Bill 1. Best

Re: Let's talk about debuggers!

Fabien wrote: On 10/25/2017 03:07 PM, Thomas Jollans wrote: What options are there for Python (that work)? PyCharm's debugger is fine (also available in the community edition) +1 Cheers, Fabien -- https://mail.python.org/mailman/listinfo/python-list

Re: I used list, def. why li += [100,200] , and li = li + [100,200] is different

t newly created object and it gets lost. The problem and both solutions are great! Thanks for posting! Bill -- https://mail.python.org/mailman/listinfo/python-list

Re: Lies in education [was Re: The "loop and a half"]

Marko Rauhamaa wrote: Grant Edwards : I like [const qualifiers] in C because it allows the linker to place them in ROM with the code. It also _sometimes_ provides useful diagnostics when you pass a pointer to something which shouldn't be modified to something that is

Re: Lies in education [was Re: The "loop and a half"]

Grant Edwards wrote: On 2017-10-11, Bill <bill_nos...@whoknows.net> wrote: Grant Edwards wrote: On 2017-10-11, Bill <bill_nos...@whoknows.net> wrote: [...] I'm not here to "cast stones", I like Python. I just think that you shouldn't cast stones at C/C++.

Re: Lies in education [was Re: The "loop and a half"]

Mikhail V wrote: [...] I'm not here to "cast stones", I like Python. I just think that you shouldn't cast stones at C/C++. Not while PHP exists. There aren't enough stones in the world... PHP seems (seemed?) popular for laying out web pages. Are their vastly superior options? Python?

Re: Lies in education [was Re: The "loop and a half"]

Grant Edwards wrote: On 2017-10-11, Bill <bill_nos...@whoknows.net> wrote: [...] I'm not here to "cast stones", I like Python. I just think that you shouldn't cast stones at C/C++. Not while PHP exists. There aren't enough stones in the world... PHP seems (seemed?) popula

Re: Lies in education [was Re: The "loop and a half"]

Dennis Lee Bieber wrote: On Tue, 10 Oct 2017 20:48:26 -0400, Bill <bill_nos...@whoknows.net> declaimed the following: cast stones at C/C++. People started programming in C in the late 70's, and before that some were programming in B ("B Programming Language"), Precede

Re: Lies in education [was Re: The "loop and a half"]

s and write device drivers, from scratch. And "woe" if you need performance, such as applications involving AI. Cheers, Bill But even if it were the best language in the world, and Stroustrup the greatest language designer in the history of computing, what makes you think that he

Re: Lies in education [was Re: The "loop and a half"]

s have 5-star rankings on Amazon.com. That doesn't mean that either of them is right for everybody. Come back to Stroustrup's book "after" you learn C++ somewhere else, and maybe you'll enjoy it more. Bill -- https://mail.python.org/mailman/listinfo/python-list

Re: why does memory consumption keep growing?

Fetchinson . wrote: Hi folks, I have a rather simple program which cycles through a bunch of files, does some operation on them, and then quits. There are 500 files involved and each operation takes about 5-10 MB of memory. As you'll see I tried to make every attempt at removing everything at

Re: Lies in education [was Re: The "loop and a half"]

Marko Rauhamaa wrote: That's good advice, but it's not all that dangerous to express off-topic statements in this newsgroup. It may not be "dangerous", but I find it a little annoying. I wasn't going to say anything, but now you are bringing it up explicitly. --

Re: Introducing the "for" loop

But neither »range« nor lists have been shown so far. As long as I have two teachers here, which textbooks are you using? I am hoping to teach a college course in Python next fall. Thanks, Bill The basic course may already and there after about 12 - 18 hours. (This time includes

Re: Creating a Dictionary

Stefan Ram wrote: One might wish to implement a small language with these commands: Explain why. What is the advantage? F - move forward B - move backward L - larger stepsize S - smaller stepsize . One could start with the following pseudocode for a dictionary: { 'F': lambda:

Re: Python community "welcoming" feedback

Leam Hall wrote: A while back I pointed out some challenges for the Python community's intake of new coders. Mostly focusing on IRC and the Python e-mail list. What is the Python e-mail list? Thanks, Bill Several people have stepped up their "welcome" game and I've been very

Re: The "loop and a half"

Stefan Ram wrote: Is this the best way to write a "loop and a half" in Python? Is your goal brevity or clarity, or something else (for instance, what does the code written by the other members of your "team" look like--woudn't it be nice if it matched)? Bill x

Re: newb question about @property

Steve D'Aprano wrote: On Tue, 3 Oct 2017 06:51 am, Bill wrote: Can you inspire me with a good decorator problem (standard homework exercise-level will be fine)? Here is a nice even dozen problems for you. Please ask for clarification if any are unclear. Thank you for sharing the problems

Re: newb question about @property

Bill wrote: Chris Angelico wrote: Decorators are fairly straight-forward if you understand higher-order functions. ChrisA I was just minding my own business, and thought to write my first decorator for a simple *recursive* function f. The decorator WORKS if f does not make a call

Re: newb question about @property

I might do that yet (first things first... ). Thanks! Bill -- https://mail.python.org/mailman/listinfo/python-list

Re: newb question about @property

Steve D'Aprano wrote: There's no need to set the radius and the diameter, as one is completely derived from the other Good point; I'm glad I submitted my code for grading. Sort of a "trick question" to ask me to add diameter and then take off points because I used it!

Re: newb question about @property

Chris Angelico wrote: On Tue, Oct 3, 2017 at 6:23 AM, Larry Hudson via Python-list <python-list@python.org> wrote: On 10/01/2017 03:52 PM, Bill wrote: Steve D'Aprano wrote: The definitive explanation of descriptors is here: https://docs.python.org/3/howto/descriptor.html Tha

Re: newb question about @property

:-) It WAS a good exercise!! I was concerned about "infinite recursion" between my two property setters.. Thanks! Next? :) Bill import math class Circle(object): """ Define a circle class with radius and diameter""" def __init__(self

Re: newb question about @property

Steve D'Aprano wrote: The definitive explanation of descriptors is here: https://docs.python.org/3/howto/descriptor.html Thank you! It is next on my list. Then I'll try that Circle problem you mentioned as an exercise last night! I don't expect run into any difficulties. : ) --

Re: newb question about @property

Stephan Houben wrote: Op 2017-10-01, Bill schreef <bill_nos...@whoknows.net>: I watched an example on YouTube where someone wrote a simple descriptor ("@Time_it) to output the amount of time that it took ordinary functions to complete.To be honest, I AM interested in descriptor

Re: newb question about @property

Steve D'Aprano wrote: On Sun, 1 Oct 2017 05:46 pm, Bill wrote: If you were going to show non-Python users, say science undergraduates and faculty, that Python is an interesting tool (in 45 minutes), would one delve into descriptors? Hell no :-) Oops, I see I used the word "descriptor&qu

Re: newb question about @property

Steve D'Aprano wrote: [1] Technically, the interpreter knows nothing about properties. What it cares about is *descriptors*. Properties are just one kind of descriptor, as are methods. But I'm intentionally not talking about the gory details of descriptors. Feel free to ask if you care, but

Re: newb question about @property

ested. Thanks, Bill -- https://mail.python.org/mailman/listinfo/python-list

Re: newb question about @property

Ned Batchelder wrote: On 9/30/17 7:18 PM, Bill wrote: Ned Batchelder wrote: On 9/30/17 5:47 PM, Bill wrote: I spent a few hours experimenting with @property. To my mind it seems like it would be preferable to just define (override) instance methods __get__(), __set__(), and possibly __del__

Re: newb question about @property

Steve D'Aprano wrote: On Sun, 1 Oct 2017 08:47 am, Bill wrote: I spent a few hours experimenting with @property. To my mind it seems like it would be preferable to just define (override) instance methods __get__(), __set__(), and possibly __del__(), as desired, as I could easily provide them

newb question about @property

I spent a few hours experimenting with @property. To my mind it seems like it would be preferable to just define (override) instance methods __get__(), __set__(), and possibly __del__(), as desired, as I could easily provide them with "ideal" customization. Am I overlooking somethi

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