🌐 Mailman 3 December 2020 - Python-list - python.org

Why do I have both /usr/lib/python3 and /usr/lib/python3.8?
by Chris Green Jan. 1, 2021

Jan. 1, 2021

Why are there both /usr/lib/python3 and /usr/lib/python3.8 on my x[ubuntu] system? /usr/lib/python3 has just the dist-packages directory in it, /usr/lib/python3.8 has lots of individual python files in it as well as quite a number of directories. There's also a /usr/lib/python3.9 directory even though Ubuntu hasn't moved to python3.9 yet. -- Chris Green ·

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help
by BearGod777 Jan. 1, 2021

Jan. 1, 2021

every time i try and open a .py file it just ciomes up with either modify, uninstall or repair. i have tried every single one of these and i have tried to install another version (it couldnt run on that version) and it just doesnt load up. if i try and open a new file it works but if i try and open a file that my friend made it just comes up with those options. please help ReplyForward

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Re: Why do I have both /usr/lib/python3 and /usr/lib/python3.8?
by Chris Green Jan. 1, 2021

Jan. 1, 2021

Anssi Saari <as(a)sci.fi> wrote: > Chris Green <cl(a)isbd.net> writes: > > > Why are there both /usr/lib/python3 and /usr/lib/python3.8 on my > > x[ubuntu] system? > > While it's more of an Ubuntu (or Debian) question better asked in some > relevant Linux forum, in the end it's because some package managers > decided to do that. You can use commands like these to see which > packages put stuff in which directory: > > dpkg -S /usr/lib/python3.8 > dpkg -S /usr/lib/python3 > > On my Debian system the corresponding output looks like this: > > $ dpkg -S /usr/lib/python3.7 > python3.7, libpython3.7-minimal:amd64, python3-tk:amd64, > libpython3.7-dev:amd64, libpython3.7-stdlib:amd64, libpython3.7:amd64, > python3-distutils, python3-lib2to3: /usr/lib/python3.7 > > $ dpkg -S /usr/lib/python3 > python3-scipy, python3-opengl, python3-statsmodels, iotop, > python3-reportlab-accel:amd64, python3-magic, python3-pkg-resources, > python3-kiwisolver, python3.7, python3-pandas-lib, python3-kerberos, > python3-lz4, python3-renderpm:amd64, python3-numexpr, > python3-cffi-backend, python3-crypto, python3-tables, python3-rencode, > python3-gi, python3-dbus, devscripts, python3-gpg, python3-pyasn1, > python3-py, python3-eyed3, pdfarranger, python3-pip, python3-virtualenv, > xpra, python3-pandas, python3-pil:amd64, python3-requests, > python3-urllib3, python3-psutil, python3-paramiko, python3-netifaces, > python3-patsy, python3-gssapi, python3-sklearn, python3-cycler, > python3-sip, python3-cairo:amd64, python3-six, python3-chardet, > python3-nose, python3-debian, python3-wheel, python3-attr, > python3-soupsieve, python3-bcrypt, python3-bs4, python3-sklearn-lib, > python3-scour, python3-setuptools, python3-entrypoints, > python3-gi-cairo, python3-cups, python3-keyrings.alt, python3-pluggy, > python3-tz, python3-ifaddr, python3-joblib, python3-cvxopt, > python3-secretstorage, python3-reportlab, python3-more-itertools, > python3-keyring, python3-asn1crypto, python3-html5lib, python3-dns, > python3-decorator, python3-dateutil, meson, python3-pexpect, > python3-idna, python3-seaborn, lsb-release, python3-numpy, > python3-brotli, python3-tables-lib, python3-lxml:amd64, python3-pytest, > python3-simplejson, python3-nacl, python3-zeroconf, python3-xdg, > python3-libvoikko, python3-gst-1.0, python3-pypdf2, python3-evdev, > python3-matplotlib, python3-statsmodels-lib, python3-cryptography, > python3-certifi, python3-atomicwrites, python3-pyparsing, > python3-ptyprocess, python3-webencodings, piper, python3-uno, > python3-apt, python3-setproctitle:amd64, hplip: /usr/lib/python3 > > So I'd say as a rule stuff relevant to the specific version of python > goes in the specific version directory (i.e. /usr/lib/python3.8 in your > case) and python software packages in general go in /usr/lib/python3. > Yes, there are some oddities though, for example python3.7 seems to be installed in both locations (python3.8 in my case). -- Chris Green ·

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Re: Control stript which is runing in background.
by jak Jan. 1, 2021

Jan. 1, 2021

Il 31/12/2020 22:43, Cameron Simpson ha scritto: > On 31Dec2020 18:07, jak <nospam(a)please.ty> wrote: >> Il 31/12/2020 11:43, Petro ha scritto: >>> I would like to make something like this: >>> A python script would run headlessly in the background. >>> I would like to control the script from the command line using other python scripts or from the python shell. >>> From time to time I would ask the main script to create a popup window with an image or a plot. >>> What would be the proper way to approach it. How to make communication between two scripts? >> >> using named pipes would be an alternative. A small example that >> produces an echo for windows. > > A Windows named pipe seems to be more like a UNIX-side "UNIX domain > socket" than a UNIX side "named pipe". > >> For linux it's simpler using os.mkfifo: > > Not really. For Linux (and of course other UNIXen) you really want a > UNIX domain socket, not a a name pipe (as from mkfifo). > > The reason is that a socket (and a Windows pipe, from my limited > understanding) creates a new distinct connection when you open it. (The > other end has to accept that connection, at least in UNIX). > ----------------- > The problem with a UNIX pipe is that every client (your command line > control script) _share_ the same pipe - if two scripts un at once there > will be a failure. If you contrive some locking scheme then you can > share a named pipe in UNIX because only once client will use the pipe at > a time. > This is not completely true, in fact requests can be queued as they would be with sockets and it is their real job. The most important difference is that sockets are a limited resource on a system. > Just something to keep in mind. > > Cheers, > Cameron Simpson <cs(a)cskk.id.au> >

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Control stript which is runing in background.
by Petro Dec. 31, 2020

Dec. 31, 2020

Hi. I would like to make something like this: A python script would run headlessly in the background. I would like to control the script from the command line using other python scripts or from the python shell. >From time to time I would ask the main script to create a popup window with an image or a plot. What would be the proper way to approach it. How to make communication between two scripts? Thank you. Petro.

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Re: ANN: unicode 2.8
by Terry Reedy Dec. 31, 2020

Dec. 31, 2020

On 12/31/2020 9:36 AM, garabik-news-2005-05(a)kassiopeia.juls.savba.sk wrote: > unicode is a simple python command line utility that displays > properties for a given unicode character, or searches > unicode database for a given name. ... > Changes since previous versions: > > * display ASCII table (either traditional with --ascii or the new > EU–UK Trade and Cooperation Agreement version with --brexit-ascii) Are you reproducing it with bugs included? How is that of any use to anyone? A tweet linking the treaty annex page https://twitter.com/thejsa_/status/1343291595899207681 A stackoverflow question and discussion of the bugs and oddities. https://politics.stackexchange.com/questions/61178/why-does-the-eu-uk-trade… The likely answer is that the treaty writers copy-pasted from decades-old docs and could not be bothered to link to the actual ISO standard. -- Terry Jan Reedy

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ANN: unicode 2.8
by garabik-news-2005-05＠kassiopeia.juls.savba.sk Dec. 31, 2020

Dec. 31, 2020

unicode is a simple python command line utility that displays properties for a given unicode character, or searches unicode database for a given name. It was written with Linux in mind, but should work almost everywhere (including MS Windows and MacOSX), UTF-8 console is recommended. ˙pɹɐpuɐʇs əpoɔı̣uՈ əɥʇ ɟo əsn pəɔuɐʌpɐ puɐ səldı̣ɔuı̣ɹd əɥʇ ɓuı̣ʇɐɹʇsuoɯəp looʇ ɔı̣ʇɔɐpı̣p ʇuəlləɔxə uɐ sı̣ ʇI ˙sʇuı̣odəpoɔ ʇuəɹəɟɟı̣p ʎləʇəldɯoɔ ɓuı̣sn əlı̣ɥʍ 'sɥdʎlɓ ɟo ɯɐəɹʇs ɹɐlı̣ɯı̣s ʎllɐnsı̣ʌ oʇuı̣ ʇxəʇ əɥʇ ʇɹəʌuoɔ oʇ pɹɐpuɐʇs əpoɔı̣uՈ əɥʇ ɟo ɹəʍod llnɟ əɥʇ sʇı̣oldxə ʇɐɥʇ 'ʎʇı̣lı̣ʇn ,əpoɔɐɹɐd, oslɐ suı̣ɐʇuoɔ əɓɐʞɔɐd əɥ⊥ Changes since previous versions: * display ASCII table (either traditional with --ascii or the new EU–UK Trade and Cooperation Agreement version with --brexit-ascii) * minor bug fixes URL: http://kassiopeia.juls.savba.sk/~garabik/software/unicode.html License: GPL v3 Installation: pip install unicode -- ----------------------------------------------------------- | Radovan Garabík http://kassiopeia.juls.savba.sk/~garabik/ | | __..--^^^--..__ garabik @ kassiopeia.juls.savba.sk | ----------------------------------------------------------- Antivirus alert: file .signature infected by signature virus. Hi! I'm a signature virus! Copy me into your signature file to help me spread!

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Re: Which method to check if string index is queal to character.
by Bischoop Dec. 31, 2020

Dec. 31, 2020

On 2020-12-28, Mats Wichmann <mats(a)wichmann.us> wrote: > On 12/28/20 10:46 AM, Marco Sulla wrote: >> On Mon, 28 Dec 2020 at 17:37, Bischoop <Bischoop(a)vimart.net> wrote: >>> >>> I'd like to check if there's "@" in a string and wondering if any method >>> is better/safer than others. I was told on one occasion that I should >>> use is than ==, so how would be on this example. >>> >>> s = 'this(a)mail.is' >> >> You could do simply >> >> if "@" in s: >> >> but probably what you really want is a regular expression. >> > > Will add that Yes, you should always validate your inputs, but No, the > presence of an @ sign in a text string is not sufficient to know it's a > valid email address. Unfortunately validating that is hard. > Nah, by saying if is valid I meant exeactly if there's "@", I could add yet if endswith() but at this point @ is enough. Yes the only possible way for full validation would be just sending email and waiting for reply.

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bCNC
by Mark Bachman Dec. 30, 2020

Dec. 30, 2020

I have installed Python 3.9.0 and 3.9.1 in an effort to install bCNC. After entering the cmd prompt for installing bCNC the reply indicates intsall was successful. However when trying to launch bCNC with command prompt I get the following reply. Microsoft Windows [Version 10.0.19041.685] (c) 2020 Microsoft Corporation. All rights reserved. C:\Users\------------->py -m bCNC new-config Utils <configparser.ConfigParser object at 0x000001170C96B0D0> ** On entry to DGEBAL parameter number 3 had an illegal value ** On entry to DGEHRD parameter number 2 had an illegal value ** On entry to DORGHR DORGQR parameter number 2 had an illegal value ** On entry to DHSEQR parameter number 4 had an illegal value Traceback (most recent call last): File "C:\Users\--------\AppData\Local\Programs\Python\Python39\lib\runpy.py", line 197, in _run_module_as_main return _run_code(code, main_globals, None, File "C:\Users\---------\AppData\Local\Programs\Python\Python39\lib\runpy.py", line 87, in _run_code exec(code, run_globals) File "C:\Users\----------\AppData\Local\Programs\Python\Python39\lib\site-packages\bCNC\__main__.py", line 60, in <module> from CNC import WAIT, CNC, GCode File "C:\Users\-----------\AppData\Local\Programs\Python\Python39\lib\site-packages\bCNC\CNC.py", line 25, in <module> from svgcode import SVGcode File "C:\Users\---------\AppData\Local\Programs\Python\Python39\lib\site-packages\bCNC\lib\svgcode.py", line 13, in <module> import numpy File "C:\Users\---------\AppData\Local\Programs\Python\Python39\lib\site-packages\numpy\__init__.py", line 305, in <module> _win_os_check() File "C:\Users\-----------\AppData\Local\Programs\Python\Python39\lib\site-packages\numpy\__init__.py", line 302, in _win_os_check raise RuntimeError(msg.format(__file__)) from None RuntimeError: The current Numpy installation ('C:\\Users\\----------\\AppData\\Local\\Programs\\Python\\Python39\\lib\\site-packages\\numpy\\__init__.py') fails to pass a sanity check due to a bug in the windows runtime. See this issue for more information: https://tinyurl.com/y3dm3h86 C:\Users\--------------> Any help would be greatly appreciated. -- Thanks Mark Bachman People love chopping wood. In this activity one immediately sees results. <http://www.brainyquote.com/quotes/quotes/a/alberteins108301.html> Albert Einstein <http://www.brainyquote.com/quotes/quotes/a/alberteins108301.html>

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ipython missing required module with python-3.9.1
by Rich Shepard Dec. 30, 2020

Dec. 30, 2020

Using the installed Python3-3.9.1 I rebuilt all python3 modules, including python3-prompt_toolkit-3.0.8, python3-ipython-7.19.0, and ipython_genutils. Trying to invoke ipython results in a not-found module: $ ipython Traceback (most recent call last): File "/usr/bin/ipython", line 4, in <module> from IPython import start_ipython File "/usr/lib64/python3.9/site-packages/IPython/__init__.py", line 56, in <module> from .terminal.embed import embed File "/usr/lib64/python3.9/site-packages/IPython/terminal/embed.py", line 16, in <module> from IPython.terminal.interactiveshell import TerminalInteractiveShell File "/usr/lib64/python3.9/site-packages/IPython/terminal/interactiveshell.py", line 21, in <module> from prompt_toolkit.formatted_text import PygmentsTokens ModuleNotFoundError: No module named 'prompt_toolkit.formatted_text' Running python3 from the command line I see there is no formatted_text in prompt_toolkit: >>> dir(prompt_toolkit) ['AbortAction', 'Application', 'CommandLineInterface', '__builtins__', '__cached__', '__doc__', '__file__', '__loader__', '__name__', '__package__', '__path__', '__spec__', '__version__', 'application', 'auto_suggest', 'buffer', 'buffer_mapping', 'cache', 'clipboard', 'completion', 'document', 'enums', 'eventloop', 'filters', 'history', 'input', 'interface', 'key_binding', 'keys', 'layout', 'mouse_events', 'output', 'prompt', 'prompt_async', 'reactive', 'renderer', 'search_state', 'selection', 'shortcuts', 'styles', 'terminal', 'token', 'utils', 'validation'] >>> from prompt_toolkit import formatted_text Traceback (most recent call last): File "<stdin>", line 1, in <module> ImportError: cannot import name 'formatted_text' from 'prompt_toolkit' (/usr/lib64/python3.9/site-packages/prompt_toolkit/__init__.py) What am I missing here? TIA, Rich

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