zoneinfo and tzdata
The zoneinfo module does not work on Windows unless you have installed tzdata. On Ubuntu that data seems to exist already. Not sure how or why but it obviously isn't there in a Windows virtualenv unless deliberately installed. I just spent a bit of time trying to switch from pytz to zoneinfo in Django without luck. I then asked and greatly embarrassed ChatGPT which kept apologizing when I fed back all the zoneinfo errors its advice caused. It wasn't until I read the docs that I saw zoneinfo would get timezone data from tzdata if the real info wasn't where it first looked. As soon as I installed tzdata, ChatGPT's advice started to work. When I reported this, it was very grateful and assured me my generosity in bothering to correct it would be very beneficial for other users having similar problems. Might I suggest that if zoneinfo comes up empty-handed it should raise an error saying no timezone information was found? Currently, it just nominates the timezone key you attempt to use. Behind the scenes it surely knows there are no such keys. In that case it might suggest installing tzdata. Cheers Mike -- https://mail.python.org/mailman/listinfo/python-list
RE: regarding installation of python version
Look in Windows Settings, About, Advanced system settings, Environment variables and you will see two sets of variables. One for the system and one set for yourself.Select Path and click [Edit]Carefully remove all references to Python in both sets.In theory you can now install a new Python and it will update your environment variables and that will be the Python you use.Otherwise, find the Python executable (python.exe) you wish to use and call it in your terminal using its full path.Good luckMike--(Unsigned mail from my phone) Original message From: "Thri sowmya.G via Python-list" Date: 10/10/23 04:43 (GMT+10:00) To: python-list@python.org Subject: regarding installation of python version The problem is how many times I have uninstalled the python version but always it is showing the same version after the installation of new version too .But in all control panel and file explorer at everywhere the system showing that the old version got uninstalled but again in command prompt or terminal it is in same old version. I hope I will get a solution from you. Thank you. -- https://mail.python.org/mailman/listinfo/python-list -- https://mail.python.org/mailman/listinfo/python-list
Re: Checking if email is valid
If i wanted an email verifier I would look at open source frameworks and see how they do it. Django comes to mind.--(Unsigned mail from my phone) Original message From: Michael Torrie via Python-list Date: 3/11/23 07:23 (GMT+10:00) To: python-list@python.org Subject: Re: Checking if email is valid On 11/2/23 00:42, Simon Connah via Python-list wrote:> Basically I'm writing unit tests and one of them passess in a string > with an invalid email address. I need to be able to check the string > to see if it is a valid email so that the unit test passess.If you truly have managed to code an RFC-compliant verifier, I commend you.> Valid as in conforms to the standard. Although having looked at the> standard that might be more difficult than originally planned.You'll have to read the relevant RFCs. Lots of corner cases! From whatI can see virtually no one on the internet gets it right, judging by thenumber of times I have valid email addresses flagged as not valid bypoor algorithms.-- https://mail.python.org/mailman/listinfo/python-list -- https://mail.python.org/mailman/listinfo/python-list
Re: Help
On 7/11/2023 9:02 am, Jason Friedman via Python-list wrote: On Sun, Nov 5, 2023 at 1:23 PM office officce via Python-list < python-list@python.org> wrote: which python version is better to be used and how to make sure it works on my window 10 because i downloaded it and it never worked so I uninstall to do that again please can you give me the steps on how it will work perfectly 1. Download from https://python.org (not Microsoft) and always choose the 64-bit stable version 2. Choose the installation location as C:\Python311 (avoid the default) 4. Accept other recommended installation options especially to include Python on the path (if offered) Guaranteed to work. Also, you will never have to uninstall. Install the next version in C:\Python312 etc In due course, investigate virtual environments so you can work on projects simultaneously using different versions of Python or different versions of various Python libraries. Good luck Mike If you are just starting out, the most recent version is 3.12 and is probably your best choice. When you say it never worked, can you describe in more detail what you did and what error messages you encountered? This mailing list does not accept screenshots. -- Signed email is an absolute defence against phishing. This email has been signed with my private key. If you import my public key you can automatically decrypt my signature and be sure it came from me. Your email software can handle signing. OpenPGP_signature.asc Description: OpenPGP digital signature -- https://mail.python.org/mailman/listinfo/python-list
Code improvement question
I'd like to improve the code below, which works. It feels clunky to me. I need to clean up user-uploaded files the size of which I don't know in advance. After cleaning they might be as big as 1Mb but that would be super rare. Perhaps only for testing. I'm extracting CAS numbers and here is the pattern xx-xx-x up to xxx-xx-x eg., 1012300-77-4 def remove_alpha(txt): """ r'[^0-9\- ]': [^...]: Match any character that is not in the specified set. 0-9: Match any digit. \: Escape character. -: Match a hyphen. Space: Match a space. """ cleaned_txt = re.sub(r'[^0-9\- ]', '', txt) bits = cleaned_txt.split() pieces = [] for bit in bits: # minimum size of a CAS number is 7 so drop smaller clumps of digits pieces.append(bit if len(bit) > 6 else "") return " ".join(pieces) Many thanks for any hints Cheers Mike -- https://mail.python.org/mailman/listinfo/python-list
Re: Code improvement question
On 15/11/2023 10:25 am, MRAB via Python-list wrote:
On 2023-11-14 23:14, Mike Dewhirst via Python-list wrote:
I'd like to improve the code below, which works. It feels clunky to me.
I need to clean up user-uploaded files the size of which I don't know in
advance.
After cleaning they might be as big as 1Mb but that would be super rare.
Perhaps only for testing.
I'm extracting CAS numbers and here is the pattern xx-xx-x up to
xxx-xx-x eg., 1012300-77-4
def remove_alpha(txt):
""" r'[^0-9\- ]':
[^...]: Match any character that is not in the specified set.
0-9: Match any digit.
\: Escape character.
-: Match a hyphen.
Space: Match a space.
"""
cleaned_txt = re.sub(r'[^0-9\- ]', '', txt)
bits = cleaned_txt.split()
pieces = []
for bit in bits:
# minimum size of a CAS number is 7 so drop smaller clumps
of digits
pieces.append(bit if len(bit) > 6 else "")
return " ".join(pieces)
Many thanks for any hints
Why don't you use re.findall?
re.findall(r'\b[0-9]{2,7}-[0-9]{2}-[0-9]{2}\b', txt)
I think I can see what you did there but it won't make sense to me - or
whoever looks at the code - in future.
That answers your specific question. However, I am in awe of people who
can just "do" regular expressions and I thank you very much for what
would have been a monumental effort had I tried it.
That little re.sub() came from ChatGPT and I can understand it without
too much effort because it came documented
I suppose ChatGPT is the answer to this thread. Or everything. Or will be.
Thanks
Mike
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Re: Code improvement question
On 15/11/2023 3:08 pm, MRAB via Python-list wrote:
On 2023-11-15 03:41, Mike Dewhirst via Python-list wrote:
On 15/11/2023 10:25 am, MRAB via Python-list wrote:
On 2023-11-14 23:14, Mike Dewhirst via Python-list wrote:
I'd like to improve the code below, which works. It feels clunky to
me.
I need to clean up user-uploaded files the size of which I don't
know in
advance.
After cleaning they might be as big as 1Mb but that would be super
rare.
Perhaps only for testing.
I'm extracting CAS numbers and here is the pattern xx-xx-x up to
xxx-xx-x eg., 1012300-77-4
def remove_alpha(txt):
""" r'[^0-9\- ]':
[^...]: Match any character that is not in the specified set.
0-9: Match any digit.
\: Escape character.
-: Match a hyphen.
Space: Match a space.
"""
cleaned_txt = re.sub(r'[^0-9\- ]', '', txt)
bits = cleaned_txt.split()
pieces = []
for bit in bits:
# minimum size of a CAS number is 7 so drop smaller
clumps of digits
pieces.append(bit if len(bit) > 6 else "")
return " ".join(pieces)
Many thanks for any hints
Why don't you use re.findall?
re.findall(r'\b[0-9]{2,7}-[0-9]{2}-[0-9]{2}\b', txt)
I think I can see what you did there but it won't make sense to me - or
whoever looks at the code - in future.
That answers your specific question. However, I am in awe of people who
can just "do" regular expressions and I thank you very much for what
would have been a monumental effort had I tried it.
That little re.sub() came from ChatGPT and I can understand it without
too much effort because it came documented
I suppose ChatGPT is the answer to this thread. Or everything. Or
will be.
\b Word boundary
[0-9]{2,7} 2..7 digits
- "-"
[0-9]{2} 2 digits
- "-"
[0-9]{2} 2 digits
\b Word boundary
The "word boundary" thing is to stop it matching where there are
letters or digits right next to the digits.
For example, if the text contained, say, "123456789-12-1234", you
wouldn't want it to match because there are more than 7 digits at the
start and more than 2 digits at the end.
Thanks
I know I should invest some brainspace in re. Many years ago at a Perl
conferenceI did buy a coffee mug completely covered with a regex cheat
sheet. It currently holds pens and pencils on my desk. And spiders now I
look closely!
Then I took up Python and re is different.
Maybe I'll have another look ...
Cheers
Mike
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Signed email is an absolute defence against phishing. This email has
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Re: Code improvement question
On 16/11/2023 9:34 am, Rimu Atkinson via Python-list wrote:
Why don't you use re.findall?
re.findall(r'\b[0-9]{2,7}-[0-9]{2}-[0-9]{2}\b', txt)
I think I can see what you did there but it won't make sense to me -
or whoever looks at the code - in future.
That answers your specific question. However, I am in awe of people
who can just "do" regular expressions and I thank you very much for
what would have been a monumental effort had I tried it.
I feel the same way about regex. If I can find a way to write
something without regex I very much prefer to as regex usually adds
complexity and hurts readability.
You might find https://regex101.com/ to be useful for testing your
regex. You can enter in sample data and see if it matches.
If I understood what your regex was trying to do I might be able to
suggest some python to do the same thing. Is it just removing numbers
from text?
The for loop, "for bit in bits" etc, could be written as a list
comprehension.
pieces = [bit if len(bit) > 6 else "" for bit in bits]
For devs familiar with other languages but new to Python this will
look like gibberish so arguably the original for loop is clearer,
depending on your team.
It's worth making the effort to get into list comprehensions though
because they're awesome.
I agree qualitatively 100% but quantitively perhaps I agree 80% where
readability is easy.
I think that's what you are saying anyway.
That little re.sub() came from ChatGPT and I can understand it
without too much effort because it came documented
I suppose ChatGPT is the answer to this thread. Or everything. Or
will be.
I am doubtful. We'll see!
R
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Re: XML Considered Harmful
I had to use XML once because that was demanded by the receiving machine over which I had no say.I wouldn't use it otherwise because staring at it makes you dizzy.I would want to know how the data are derived from the multiple sources and transmitted to the collating platform before pontificating.Then I would ignore any potential future enhancements and choose the easiest possible mechanism. I have used json with python and been delighted at the ease of converting data into dicts and even arbitrary nesting where data values can also be dicts etc.Good luck--(Unsigned mail from my phone) Original message From: dn via Python-list Date: 24/9/21 15:42 (GMT+10:00) To: python-list@python.org Subject: Re: XML Considered Harmful On 24/09/2021 14.07, Stefan Ram wrote:> dn writes:>> With that, why not code it as Python expressions, and include the module?> > This might create a code execution vulnerability if such > files are exchanged between multiple parties.The OP's spec, as quoted earlier(!), reads:"It's my own research, so I can give myself the data in any format thatI like."Whither "files are exchanged" and/or "multiple parties"? Are theseanticipations of problems that may/won't ever apply? aka YAGNI.Concern about such an approach *is* warranted.However, the preceding question to be considered during the design-stageis: 'does such concern apply?'. The OP describes full and unique agency.Accordingly, "KISS"!NB my personal choice would likely be JSON or YAML, but see reservations(eg @Chris) - and with greater relevance: shouldn't we consider the OP's'learning curve'?(such deduced only from OP's subsequent reactions/responses 'here' -with any and all due apologies)-- Regards,=dn-- https://mail.python.org/mailman/listinfo/python-list -- https://mail.python.org/mailman/listinfo/python-list
pythonpapers.org domain name to lapse in November
The board of editors of the Python Papers has decided to let the pythonpapers.org domain name to lapse. It will not be renewed in November. Anyone interested in it can get in touch. Cheers Mike -- Signed email is an absolute defence against phishing. This email has been signed with my private key. If you import my public key you can automatically decrypt my signature and be sure it came from me. Just ask and I'll send it to you. Your email software can handle signing. OpenPGP_signature Description: OpenPGP digital signature -- https://mail.python.org/mailman/listinfo/python-list
Isn't TypeError built in?
Obviously something is wrong elsewhere but I'm not sure where to look. Ubuntu 20.04 with plenty of RAM. def __del__(self): try: for context_obj in self._context_refs: try: delattr(context_obj, self._attr_name) except AttributeError: pass except TypeError: # THIS IS LINE 96 IN THE APACHE2 ERROR LOG BELOW # WeakSet.__iter__ can crash when interpreter is shutting down due # to _IterationGuard being None. pass [Mon Dec 13 01:15:49.875993 2021] [mpm_event:notice] [pid 1033:tid 140446449658944] AH00493: SIGUSR1 received. Doing graceful restart [Mon Dec 13 01:15:49.878443 2021] [so:warn] [pid 1033] AH01574: module dav_module is already loaded, skipping [Mon Dec 13 01:15:49.885659 2021] [mpm_event:notice] [pid 1033:tid 140446449658944] AH00489: Apache/2.4.41 (Ubuntu) SVN/1.13.0 OpenSSL/1.1.1f mod_wsgi/4.6.8 Python/3.8 configured -- resuming normal operations [Mon Dec 13 01:15:49.885664 2021] [core:notice] [pid 1033:tid 140446449658944] AH00094: Command line: '/usr/sbin/apache2' Exception ignored in: Traceback (most recent call last): File "/usr/local/lib/python3.8/dist-packages/asgiref/local.py", line 96, in __del__ NameError: name 'TypeError' is not defined Exception ignored in: Traceback (most recent call last): File "/usr/local/lib/python3.8/dist-packages/asgiref/local.py", line 96, in __del__ NameError: name 'TypeError' is not defined Any hints welcome ... Thanks Mike -- Signed email is an absolute defence against phishing. This email has been signed with my private key. If you import my public key you can automatically decrypt my signature and be sure it came from me. Just ask and I'll send it to you. Your email software can handle signing. OpenPGP_signature Description: OpenPGP digital signature -- https://mail.python.org/mailman/listinfo/python-list
Re: Isn't TypeError built in?
On 13/12/2021 12:42 pm, Chris Angelico wrote: On Mon, Dec 13, 2021 at 12:31 PM Mike Dewhirst via Python-list wrote: Obviously something is wrong elsewhere but I'm not sure where to look. Ubuntu 20.04 with plenty of RAM. def __del__(self): try: for context_obj in self._context_refs: try: delattr(context_obj, self._attr_name) except AttributeError: pass except TypeError:# THIS IS LINE 96 IN THE APACHE2 ERROR LOG BELOW # WeakSet.__iter__ can crash when interpreter is shutting down due # to _IterationGuard being None. pass [Mon Dec 13 01:15:49.875993 2021] [mpm_event:notice] [pid 1033:tid 140446449658944] AH00493: SIGUSR1 received. Doing graceful restart [Mon Dec 13 01:15:49.878443 2021] [so:warn] [pid 1033] AH01574: module dav_module is already loaded, skipping [Mon Dec 13 01:15:49.885659 2021] [mpm_event:notice] [pid 1033:tid 140446449658944] AH00489: Apache/2.4.41 (Ubuntu) SVN/1.13.0 OpenSSL/1.1.1f mod_wsgi/4.6.8 Python/3.8 configured -- resuming normal operations [Mon Dec 13 01:15:49.885664 2021] [core:notice] [pid 1033:tid 140446449658944] AH00094: Command line: '/usr/sbin/apache2' Exception ignored in: Traceback (most recent call last): File "/usr/local/lib/python3.8/dist-packages/asgiref/local.py", line 96, in __del__ NameError: name 'TypeError' is not defined Exception ignored in: Traceback (most recent call last): File "/usr/local/lib/python3.8/dist-packages/asgiref/local.py", line 96, in __del__ NameError: name 'TypeError' is not defined Any hints welcome ... During interpreter shutdown, all kinds of things can go weird. The order that things get destroyed isn't always clearly defined. Is it possible to do the cleanup work before interpreter shutdown? Alternatively: maybe take a local reference to the exception types you need to refer to (just "AttributeError = AttributeError" at top level should do it), which should keep them alive longer (I think). Worst case, capture *all* exceptions, then look at e.__class__.__name__ and match on that. ChrisA OK - not solved but resolved anyway. The Django project was failing on the new server and working fine in dev. The problem seems to be a mis-export from an old subversion repo.The project was being reconstituted on a new staging server from a reloaded svn dump from the old (ancient) svn server to the new svn server on the same machine. Resolution "happened" when I updated the (c) notice in all source files and recommitted to the new server and re-exported from that. The repo looks fine. The log is all there back to the beginning. As a test I have deployed from an earlier revision and that all works. It's either a miracle or I did something else (which I didn't notice) which fixed it. Thanks to everyone for thinking about this. Cheers Mike -- Signed email is an absolute defence against phishing. This email has been signed with my private key. If you import my public key you can automatically decrypt my signature and be sure it came from me. Just ask and I'll send it to you. Your email software can handle signing. OpenPGP_signature Description: OpenPGP digital signature -- https://mail.python.org/mailman/listinfo/python-list
Re: Isn't TypeError built in?
Thanks Peter ... the problem was all mine.Can't quite remember what it was exactly but I introduced a bug in my own code and it manifested down there in the bowels of the snake.I suppose that indicates a possible kink to be ironed out and if that interests you I am happy to retrace my steps and describe it.Fyi, there was nothing out of kilter in the machine. It was in production and is stable.CheersMike--(Unsigned mail from my phone) Original message From: "Peter J. Holzer" Date: 26/12/21 06:19 (GMT+10:00) To: python-list@python.org Subject: Re: Isn't TypeError built in? On 2021-12-13 12:22:28 +1100, Mike Dewhirst via Python-list wrote:> Obviously something is wrong elsewhere but I'm not sure where to look.> Ubuntu 20.04 with plenty of RAM.[...]> [Mon Dec 13 01:15:49.885659 2021] [mpm_event:notice] [pid 1033:tid> 140446449658944] AH00489: Apache/2.4.41 (Ubuntu) SVN/1.13.0 OpenSSL/1.1.1f> mod_wsgi/4.6.8 Python/3.8 configured -- resuming normal operations> [Mon Dec 13 01:15:49.885664 2021] [core:notice] [pid 1033:tid> 140446449658944] AH00094: Command line: '/usr/sbin/apache2'> Exception ignored in: > Traceback (most recent call last):> File "/usr/local/lib/python3.8/dist-packages/asgiref/local.py", line 96,> in __del__> NameError: name 'TypeError' is not definedDid you upgrade the OS recently and do you use virtual environents withmod_wsgi?"Impossible" errors like the above are common when the virtualenvironment was built with a different (older) version of the Pythoninterpreter than the one trying to use it. Nuking and rebuilding thevirtual environment is usually the quickest way to fix it. hp-- _ | Peter J. Holzer | Story must make more sense than reality.|_|_) | || | | h...@hjp.at | -- Charles Stross, "Creative writing__/ | http://www.hjp.at/ | challenge!"-- https://mail.python.org/mailman/listinfo/python-list -- https://mail.python.org/mailman/listinfo/python-list
Re: Python 3.12.1, Windows 11: shebang line #!/usr/bin/env python3 doesn't work any more
Apologies for top posting - my phone seems unable to do otherwise. Here's my view - which may not be popular. 1. Py.exe is an awful idea. 2. Installing python in %PROGRAMFILES% is not a good idea 3. Installing Python from a Microsoft shop or server is a bad idea 4. Shebang lines are pretty much redundant now that most python interpreters are run from venvs 5. Shebang lines have never had a place in Windows TL;DR 1. Py.exe is not a standard python thing and learning to rely on it is following Microsoft's marketing strategy. That strategy has served them brilliantly since the 1980s. They make their environment just different enough to force users to invest brainspace to make it work and thereby lock-in their users with their own muscle-memory. Very subtle. Not. 2. Installing Python in Microsoft's preferred location wasn't always "standard". Python downloaded from python.org always defaulted to C:\PythonXXX. I'm not saying that was a perfect location but at least it was (in my case still is) nicely visible for researching multiple different pythons. Putting deep in Program files does nothing other than hide it. 3. You cannot trust Microsoft. You can trust Python Software Foundation. Python from PSF works the same in all environments - or if not it is a bug. Python from Microsoft is tweaked to satisfy their aforementioned strategy of locking in users to Windows. 4. Shebang lines are a fallback if you don't wish to type the interpreter location before typing your script name. You must know your interpreter location to get the shebang line right. Shebangs were never intended as primary devices. They are linux/unix things. 5. Shebangs on Windows are a new opportunity for Microsoft to plough its own furrow. They are difficult to handle simply because of 4 above. To finish this rant, I believe it is far better to aim for standardisation rather than subtle and annoying differences deliberately designed to supplant standards in favour of market dominance. Merry Christmas all Cheers Mike On 24 December 2023 3:35:42 am AEDT, Michael Torrie via Python-list wrote: >On 12/22/23 20:56, Thomas Passin via Python-list wrote: >> It's just better not to make assumptions about which version of Python >> will be running. Just specify it yourself when you can, and then you can >> be sure. > >Precisely, which is why the shebang is so useful, even on Windows with >py launcher. For example, set the shebang to: > >#!/usr/bin/python3.6 > >And py launcher will always try to run it with Python 3.6. > >-- >https://mail.python.org/mailman/listinfo/python-list -- https://mail.python.org/mailman/listinfo/python-list
Re: Python 3.12.1, Windows 11: shebang line #!/usr/bin/env python3 doesn't work any more
Well spotted Chris. 4 was a generalisation based on my own circumstances.However, I'm not wrong about Microsoft motivationsM--(Unsigned mail from my phone) Original message From: Chris Angelico via Python-list Date: 25/12/23 15:57 (GMT+10:00) To: Michael Torrie via Python-list Subject: Re: Python 3.12.1, Windows 11: shebang line #!/usr/bin/env python3 doesn't work any more On Mon, 25 Dec 2023 at 15:42, Mike Dewhirst via Python-list wrote:>> Apologies for top posting - my phone seems unable to do otherwise.>> Here's my view - which may not be popular.You're right about that part, anyhow :)> 4. Shebang lines are pretty much redundant now that most python interpreters are run from venvsStrongly dispute that. The rest. you're entitled to your opinions(they happen to be wrong, but you're entitled to them :) ), but thisis a statement of fact that I would need to see some evidence for.ChrisA-- https://mail.python.org/mailman/listinfo/python-list -- https://mail.python.org/mailman/listinfo/python-list
Re: Python 3.12.1, Windows 11: shebang line #!/usr/bin/env python3 doesn't work any more
On 29/12/2023 12:09 pm, Félix An via Python-list wrote: On 2023-12-25 12:36, Mike Dewhirst wrote: 3. You cannot trust Microsoft. You can trust Python Software Foundation. Python from PSF works the same in all environments - or if not it is a bug. Python from Microsoft is tweaked to satisfy their aforementioned strategy of locking in users to Windows. I strongly disagree with this. Not sure which part of the above you strongly disagree with. I might seem a bit OTT with "You cannot trust Microsoft" but I did put it in a specific context. PSF does try to make Python work identically in all operating systems it supports. The OP was using py.exe which I discovered (just now - and it is why I'm writing this) exists on my Windows 10 machine. I have never installed any Python other than personally downloaded from the python.org website - therefore py.exe must have come from PSF! I had assumed the OP had installed Python from the Microsoft shop and that's where py.exe must have come from. I learn something every day. I don't get all the irrational hate for Microsoft that exists within the Linux community. Perhaps you are too young to remember when Steve Ballmer was head of Microsoft? He specifically and loudly hated Linux and developed the anti-linux culture/strategy within Microsoft. If memory serves correctly he called it a virus. That was in the context of trying to get rid of Linux in Europe (Germany I think) where it had gained a small municipal foothold. Microsoft eventually succeeded in reversing that public mistake. In recent years, Microsoft has made great contributions to the everyday life of Linux users. VS Code is based on open source and available on Linux, .NET is now on Linux, Windows has WSL2 and Visual Studio Linux development tools to help you develop software for Linux, SQL Server (despite still being commercial software except for the Express and Developer versions) is on Linux, etc. I only use Linux on servers without GUI. I have used Windows desktop since it was released because most of my clients used it. I had no choice. I have been watching what they do for decades. I agree they appear to have become more civilised in recent years. M -- Signed email is an absolute defence against phishing. This email has been signed with my private key. If you import my public key you can automatically decrypt my signature and be sure it came from me. Your email software can handle signing. OpenPGP_signature.asc Description: OpenPGP digital signature -- https://mail.python.org/mailman/listinfo/python-list
Re: Python 3.12.1, Windows 11: shebang line #!/usr/bin/env python3 doesn't work any more
In Windows the provided methods for running complex command lines are either a batch file or a shortcut.Someone very kindly pointed out to me in this thread that there is a PEP for py.exe. I don't use py.exe originally because I didn't trust it believing it was a new-fangled Microsoft trick. I did read that PEP but it has no relevance for my mixed Windows/Linux environments. On reflection I now believe I won't use py.exe because it introduces an unnecessary layer of indirection.The bottom line is that you still need to know which Python a particular set of circumstances demands and if you use py.exe you then need to also understand how it chooses and how it interprets shebang lines written for your Linux environment. And if that isn't your situation I have jumped to the wrong conclusion.I have found no problem in Windows when I use shebang lines in scripts intended for execution in both Linux and Windows. They are ignored unless you use py.exe.My advice is to give up py.exe unless your use case mandates shebang lines in Windows.M--(Unsigned mail from my phone) Original message From: Sibylle Koczian via Python-list Date: 14/1/24 23:59 (GMT+10:00) To: python-list@python.org Subject: Re: Python 3.12.1, Windows 11: shebang line #!/usr/bin/env python3 doesn't work any more Am 09.01.2024 um 12:36 schrieb Barry Scott via Python-list:> > >> On 7 Jan 2024, at 15:09, Sibylle Koczian via Python-list wrote: Oh, and the two Windows and Python versions are on two different computers. Will remove the "/env" from my shebang lines, even if I don't understand what's happening.> > Thanks for the details.> > Only thing I can think of is that "python" may be defaulting to mean python 2.> If you use "#!/usr/bin/env python3" it may work on both.No, it doesn't. That's the form I started with. When it didn't work I thought "python3" might be too old, because Python 2 is dead for so long.> > Did you creates a py.ini file to configure py.exe?> > See if you have %userappdata%\py.ini on either windows 10 or windows 11.> If so what is its contents?No to both.> > I've tried with and without a py.ini and cannot duplicate what you see.> It really seems strange. Only thing I can think of - and I don't really believe in that idea: as far as I know in Windows 11 the handling of PATH has changed. My Python isn't on the path, perhaps that is it. A shebang line without "/env" doesn't check the path, right?Thank you for helping,Sibylle-- https://mail.python.org/mailman/listinfo/python-list -- https://mail.python.org/mailman/listinfo/python-list
Re: troglodytes
On 14/08/2024 12:54 am, Michael Torrie via Python-list wrote: On 8/13/24 3:24 AM, Robin Becker via Python-list wrote: I am clearly one of the troglodytes referred to in recent discussions around the PSF. I've been around in python land for far too long, my eyesight fails etc etc. I feel strongly that a miscarriage of justice has been made in the 3-month banning of a famous python developer from some areas of discourse. I have had my share of disagreements with others in the past and have been sometimes violent or disrespectful in emails. I might have been in the kill list of some, but never banned from any mailing lists. Honest dialogue is much better than imposed silence. -- grumblingly-yrs -- Robin Becker Agreed. Here's a good summary of the issue: https://chrismcdonough.substack.com/p/the-shameful-defenestration-of-tim The PSF has really screwed this up. Really embarrassing, frankly. And sad. I read Chris McDonough's defence of Tim Peters and he has convinced me. Not because of everything he said but because I have experience of committees. And other things. The problem is generational. Later generations can see the faults of earlier generations in brilliant hindsight. I certainly did. In my case, those earlier generations caused depressions and world wars. That was pretty bad wasn't it? Can I blame my ancestors for that? My great-grandparents were born in the second half of the 1800s; my grandparents in the late 1800s. They were undoubtedly responsible for WW1 and the great depression wouldn't you say? So my parents who grew up after WW1 and both fought in WW2 were forced to give the best years of their lives to the worst of times. Not their fault. In fact they were heroic to do all that and have me and my siblings starting in their mid-twenties. Here's the rub: they had serious faults and I could see them clearly - when I was in my twenties and having children of my own. I'll be 80 next year and I have a clearer perspective now. I now understand why the oldest known culture (60k+ years) survived intact for so long including the last few thousand years of trading between Australia and Asia and more recent centuries with Europe. It wasn't entirely due to isolation. In fact there were hundreds of separate nations and languages in Australia so no-one was all that isolated. They had traders and diplomats and warriors just like the rest of humanity. The difference isn't with them it is with us. We have lost what keeps them together. They respect their elders. We don't. They had to because their survival depended on lore and knowledge which was passed orally across generations. The real difference is the invention of the printing press and its successors right down to television and the internet. We no longer rely on our elders for knowledge. That has eroded respect. With each generation the erosion gets worse. When I was a child, my parents gave me a bike and a set of encyclopedia. They tested me on my knowledge and taught me other stuff too, which I can't remember now but I could look it up. Our children got bikes and encyclopedia too but they were growing up after Germaine Greer published "The Female Eunuch". They are Gen Xers. That means they became totally aware of female emancipation and the comcomitant male emancipation and other isms. Knowledge is a small part of life. You have heard "it's not what you know, it's who you know". Inherited wealth solves all problems for the wealthy because that inheritance includes every "who" who matters. For the rest of us getting on with people is what really matters. Without the right "who", survival is at risk. All the knowledge in the world is at our fingertips today and still our survival needs to be curated. So PSF Board members survival depends not on knowledge nor on having policies and codes of conduct but on the right "who". The survival of the Board and perhaps even the P language itself depends on elders. Elders have something which was well respected by earlier generations. That is lore which is steeped in experience. Leadership can be taught and learned. Experience has to be experienced. Young people almost by definition, don't have it. "Young" is obviously a relative term given one's perspective. Experience and respect for experience kept the oldest known culture on the planet functioning for a very long time. Even the advent of the web has not detracted from that respect. The PSF Board should reflect on their lack of respect for experience and try to retrieve any damage that lack of respect may have done to the very thing they were elected to look after. I'm old and I respect Tim's age and would not expect him to suffer the load of becoming BDFL but by golly that would be my preference. -- We recommend signal.org Signed email is an absolute defence against phishing. This email has been signed with my private key. If you import my public key you c
