🌐 Mailman 3 December 2021 - Python-list - python.org

Re: problem reading a CSV file
by Greg Ewing Dec. 13, 2021

Dec. 13, 2021

On 14/12/21 7:07 am, MRAB wrote: > It's difficult to say what the problem is when you haven't given us the > code! Note: Attachments do not make it to this list. You will need to insert the code into the message as text. -- Greg

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Re: Installation problems
by Greg Ewing Dec. 13, 2021

Dec. 13, 2021

On 13/12/21 8:25 pm, Cristiano Loro wrote: > In production I performed a custom installation defining "for all users", but the modules are placed elsewhere and this is perhaps the problem. How can I put the modules in the correct folder? How are you installing the modules? Are you doing it with sufficient privileges to put them in the shared area? Are you sure that your users are running the same Python that you installed? -- Greg

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problem reading a CSV file
by Larry Warner Dec. 13, 2021

Dec. 13, 2021

Win 10, Chrome, Python 3.10.1 New at python error on open statement Probably simple error but I do not see it. The program is a python example with the file name being changed. I want to experiment with changing the literal file name in the open statement to a variable name later. Larry

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Installation problems
by Cristiano Loro Dec. 13, 2021

Dec. 13, 2021

Good morning, i am using a python application to program ESP8266. in my office everything works fine, but in production, where users don't have the same access privileges, I can't get it to go. In production I performed a custom installation defining "for all users", but the modules are placed elsewhere and this is perhaps the problem. How can I put the modules in the correct folder? in general how can I get around the obstacle many thanks in advance for your help [Firma-Mail-Roger_Cristiano-Loro] <Le informazioni contenute in questa comunicazione sono riservate e destinate esclusivamente alla/e persona/e o all'ente/i sopra indicati. È vietato ai soggetti diversi dai destinatari qualsiasi uso, copia, diffusione di quanto in essa contenuto sia ai sensi dell'art. 616 c..p., sia ai sensi del Regolamento UE 679/2016. Se questa comunicazione vi è pervenuta per errore, vi preghiamo di rispondere a questa e-mail comunicando l'errore e successivamente cancellarla, compresi gli eventuali allegati, dal vostro sistema. La informiamo che il trattamento dei suoi dati personali è effettuato dalla presente struttura con l'adozione delle misure previste dalla normativa vigente a tutela della protezione dei dati personali (Regolamento UE 679/2016).>

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Re: Sad news: Fredrik Lundh ("Effbot") has passed away
by jkn Dec. 12, 2021

Dec. 12, 2021

On Sunday, December 12, 2021 at 2:01:19 PM UTC, Skip Montanaro wrote: > Like many others, I'm saddened to hear of Fredrik Lundh's passing. I > vaguely recall meeting him just once, probably at a Python workshop, > before they grew big enough to be called conferences. Effbot.org was > my Tkinter, ElemenTree, and PIL reference and cheat sheet. > > My attention to Python development has waxed and waned over the years. > Most of the time, the trip through the Python folder in my mail > program was generally pretty quick, hitting the 'd' key far more often > than I'd stop to read a message. There are only a few people whose > messages I'd always read. Effbot was one. In my opinion, Fredrik ranks > up there with Guido, Tim Peters and Barry Warsaw. > > I went to effbot.org and saw the "on hiatus" message. Searching > through The Wayback Machine, it seems it went on hiatus in late > November, 2020. The 11 November 2020 snapshot appears to be the last > usable version: > > https://web.archive.org/web/20201111145627/http://effbot.org/ > > Probably worth a bookmark in your browser. > > Rest easy /F ... > > Skip I hadn't realised effbot.org was 'on hiatus'. Yes, definitely worth bookmarking The Wayback Machine backup - or even (someone?) making a separate archive?

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Re: Sad news: Fredrik Lundh ("Effbot") has passed away
by Skip Montanaro Dec. 12, 2021

Dec. 12, 2021

Like many others, I'm saddened to hear of Fredrik Lundh's passing. I vaguely recall meeting him just once, probably at a Python workshop, before they grew big enough to be called conferences. Effbot.org was my Tkinter, ElemenTree, and PIL reference and cheat sheet. My attention to Python development has waxed and waned over the years. Most of the time, the trip through the Python folder in my mail program was generally pretty quick, hitting the 'd' key far more often than I'd stop to read a message. There are only a few people whose messages I'd always read. Effbot was one. In my opinion, Fredrik ranks up there with Guido, Tim Peters and Barry Warsaw. I went to effbot.org and saw the "on hiatus" message. Searching through The Wayback Machine, it seems it went on hiatus in late November, 2020. The 11 November 2020 snapshot appears to be the last usable version: https://web.archive.org/web/20201111145627/http://effbot.org/ Probably worth a bookmark in your browser. Rest easy /F ... Skip

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ERROR: No matching distribution found for PyQt5==5.15.4
by CINDY PANTALUNAN Dec. 12, 2021

Dec. 12, 2021

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Set git config credential.helper cache and timeout via python
by TomK Dec. 12, 2021

Dec. 12, 2021

Hey All, I have a set of bash and python scripts that all interact with a remote git repository. While running the scripts, when ever a repo is cloned using HTTP and a user/pass combination, that information is stored in the .git/config file on disk including the password. I'm able to issue the following commands in git to effectively enable the caching of credentials in memory for a predefined amount of time off the linux shell: git config credential.helper 'cache git config credential.helper 'cache --timeout=300' However, what is the best way to do so via Python? I've read through the following to try and make sense of how I could do so: https://gitpython.readthedocs.io/en/stable/reference.html?highlight=cache#g… https://pypi.org/project/git-credential-helpers/ But neither means appears to have or be able to do what I'm interested in. I would like to prevent the user and password from being stored on disk in any shape or form, including eliminating it from .gitconfig / .git/config files. I keep trying to search in google for possible solutions using "python git credential helper" and "git prevent storing passwords in git config files" but google keeps returning results on how to store passwords IN .git/config files, which is the exact opposite of what I want. :) An alternative to the above is to use ssh keys, however I would like to know an alternate way that avoids using ssh keys. Wondering if folks here did something similar using python and could provide a bit of insight how I could go about doing so? -- Thx, TK.

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FW: pip Error
by Sidharth S Nair Dec. 11, 2021

Dec. 11, 2021

Sent from [1]Mail for Windows From: [2]Sidharth S Nair Sent: 11 December 2021 01:00 PM To: [3]python-list(a)python.org Subject: pip Error Sent from [4]Mail for Windows Hi, I am NINJAGAMING107 a active python user and lately I have been trying to make my own personal AI assistant but I am not able to make because I am not able to import Speech Recognition and some other more. The error says module not found even though in my folder where I installed python and the packages there is a folder of speech recognition and the rest of the things which I installed. I used Pycharm and VS code for this still not working. If there is any way to fix this please tell me or if I am doing the installation wrong please tell me. Hope that you will reply to ASAP. Thank you in advance. NINJAGAMING107 This email has been checked for viruses by Avast antivirus [5]Avast logo software. [6]www.avast.com References Visible links 1. https://go.microsoft.com/fwlink/?LinkId=550986 2. mailto:ninjagaming107gamer@gmail.com 3. mailto:python-list@python.org 4. https://go.microsoft.com/fwlink/?LinkId=550986 5. https://www.avast.com/antivirus 6. https://www.avast.com/antivirus

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Fwd: I/O bound threads got to no chance to run with small CPU bound threads with new GIL
by Souvik Ghosh Dec. 11, 2021

Dec. 11, 2021

*Resending this message after subscribing in python-mail-list* ---------- Forwarded message --------- From: Souvik Ghosh <souvikghosh872(a)gmail.com> Date: Sat, Dec 11, 2021 at 5:10 PM Subject: I/O bound threads got to no chance to run with small CPU bound threads with new GIL To: <python-list(a)python.org> Hello PSF, I'm Souvik Ghosh from India. I've been coding for Python for almost 5 years now. And, I love Python and care about it so much. The issue is stated below, According to David Beazley' talk in PyCon'2010 in Atlanta Georgia, he demonstrated about a new GIL with running CPU bound and I/O bound threads together. He said the talk that the threads which are forced to timeout of 5ms, will have the lower priority(which is CPU bound) and the thread which suspends the GIL within 5ms will have higher priority (which is I/O bound). What happens in the following code is if I set args=(10000000,) (seven zero after 1) then only I/O bound runs and returns when CPU bound takes much time to execute. But if I decrease that args to args=(1000,) then I/O bound got no chance to reaquire the GIL in the meantime even though the sys.getswitchinterval() is equal to 5ms(By default). If I/O bound doesn't reacquire GIL with args=(10000,) then the time to execute to run only the CPU bound takes 0.42777760000035414 seconds. Thats means almost ticks 0.42777760000035414/0.005=85 (approx) times to set the priority in between the two threads. In that case if the I/O got more priority within that time, it should have returned the value within that ticks. But I didn't happen. import threading from queue import Queue from timeit import default_timer as timer import urllib.request q = Queue() # Queue technique to pass returns among threads while running def decrement(numbers): # CPU bound while numbers > 0: numbers -= 1 if not q.empty(): """I added this method because this thread will run most of the time because it's mostly cpu bound""" print(numbers) print(q.get(block=False)) print(timer() - start) # It tell after when exactly I/O bound returns value after both the threads started to run def get_data(): # I/O bound with urllib.request.urlopen("https://www.google.com") as dt: q.put(dt.read(), block=False) if __name__ == "__main__": start = timer() t1 = threading.Thread(target=get_data) #t2 = threading.Thread(target=decrement, args=(10000000,)) #For this I/O responds and returns t2 = threading.Thread(target=decrement, args=(100000,)) # I/O doesn't responds at all t1.start() t2.start() t1.join() t2.join() print(timer() - start) Look at the second code... import threading from queue import Queue from timeit import default_timer as timer import urllib.request import sys q = Queue() # Queue technique to pass returns among threads while running def decrement(numbers): # CPU bound while numbers > 0: numbers -= 1 if not q.empty(): """I added this method because this thread will run most of the time because it's mostly cpu bound""" print(numbers) print(q.get(block=False)) print(timer() - start) # It tell after when exactly I/O bound returns value after both the threads started to run def get_data(): # I/O bound with urllib.request.urlopen("https://www.google.com") as dt: q.put(dt.read(), block=False) if __name__ == "__main__": sys.setswitchinterval(0.0000000000000000000000000001) start = timer() t1 = threading.Thread(target=get_data) #t2 = threading.Thread(target=decrement, args=(1000000,)) #I/O responds with this t2 = threading.Thread(target=decrement, args=(10000,)) # I/O doesn't responds at all even with this 0.0000000000000000000000000001 seconds of threads switching interval t1.start() t2.start() t1.join() t2.join() print(timer() - start) Can't we have a more better version of GIL to set I/O threads(overall) priorities even more better and not to degrade the CPU bound and better callbacks in response? Or, try to remove the GIL? The issue I submitted in here:- https://bugs.python.org/issue46046 Thank you so much, great future of Python!

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