🌐 Mailman 3 February 2024 - Python-list - python.org

Cheetah 3.3.3.post1
by Oleg Broytman Feb. 28, 2024

Feb. 28, 2024

Hello! I'm pleased to announce version 3.3.3.post1, the first post-release of release 3.3.3 of branch 3.3 of CheetahTemplate3. What's new in CheetahTemplate3 ============================== CI: - GHActions: Build and publish wheels on Linux/aarch64. What is CheetahTemplate3 ======================== Cheetah3 is a free and open source (MIT) Python template engine. It's a fork of the original CheetahTemplate library. Python 2.7 or 3.4+ is required. Where is CheetahTemplate3 ========================= Site: https://cheetahtemplate.org/ Download: https://pypi.org/project/CT3/3.3.3.post1 News and changes: https://cheetahtemplate.org/news.html StackOverflow: https://stackoverflow.com/questions/tagged/cheetah Mailing lists: https://sourceforge.net/p/cheetahtemplate/mailman/ Development: https://github.com/CheetahTemplate3 Developer Guide: https://cheetahtemplate.org/dev_guide/ Example ======= Install:: $ pip install CT3 # (or even "ct3") Below is a simple example of some Cheetah code, as you can see it's practically Python. You can import, inherit and define methods just like in a regular Python module, since that's what your Cheetah templates are compiled to :) :: #from Cheetah.Template import Template #extends Template #set $people = [{'name' : 'Tom', 'mood' : 'Happy'}, {'name' : 'Dick', 'mood' : 'Sad'}, {'name' : 'Harry', 'mood' : 'Hairy'}] <strong>How are you feeling?</strong> <ul> #for $person in $people <li> $person['name'] is $person['mood'] </li> #end for </ul> Oleg. -- Oleg Broytman https://phdru.name/ phd(a)phdru.name Programmers don't die, they just GOSUB without RETURN.

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Problem resizing a window and button placement
by Steve GS Feb. 28, 2024

Feb. 28, 2024

Python, Tkinter: How do I determine if a window has been resized? I want to locate buttons vertically along the right border and need to know the new width. The buttons are to move with the change of location of the right-side border. SGA

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Re: (Mastermind) puzzle (with 3 digits) -- Elegant (readable) code Sought
by Greg Ewing Feb. 28, 2024

Feb. 28, 2024

On 26/02/24 12:45 pm, Lawrence D'Oliveiro wrote: > def score(candidate, answer) : > return \ > ( > sum(a == b for a, b in zip(candidate, answer)), > sum > ( > i != j and a == b > for i, a in enumerate(candidate) > for j, b in enumerate(answer) > ) > ) This is not correct. score((1,1,1), (1,1,2)) gives (2,4). According to the usual rules of Mastermind, it should be (2, 0). -- Greg

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Re: Testing (sorry)
by Grant Edwards Feb. 20, 2024

Feb. 20, 2024

On 2024-02-19, Thomas Passin <list1(a)tompassin.net> wrote: >> About 24 hours later, all of my posts (and the confirmation e-mails) >> all showed up in a burst at the same time on two different unrelated >> e-mail accounts. >> >> I still have no clue what was going on... > > Sometimes a post of mine will not show up for hours or even half a day. > They are all addressed directly to the list. Sometimes my email > provider sends me a notice that the message bounced. Those notices say > that the address wasn't available when the transmission was tried. I guess that in future I'll wait a couple days before I assume something is broken. -- Grant

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Re: Can one output something other than 'nan' for not a number values?
by Chris Green Feb. 19, 2024

Feb. 19, 2024

dn <PythonList(a)danceswithmice.info> wrote: > On 18/02/24 09:53, Grant Edwards via Python-list wrote: > > On 2024-02-17, Cameron Simpson via Python-list <python-list(a)python.org> wrote: > >> On 16Feb2024 22:12, Chris Green <cl(a)isbd.net> wrote: > >>> I'm looking for a simple way to make NaN values output as something > >>> like '-' or even just a space instead of the string 'nan'. > >>> [...] > >>> > >>> Battery Voltages and Currents > >>> Leisure Battery - 12.42 volts -0.52 Amps > >>> Starter Battery - nan volts nan Amps > >>> > >>> What I would like is for those 'nan' strings to be just a '-' or > >>> something similar. > > > >> The simplest thing is probably just a function writing it how you want > >> it: > >> > >> def float_s(f): > >> if isnan(f): > >> return "-" > >> return str(f) > >> > >> and then use eg: > >> > >> print(f'value is {float_s(value)}') > >> > >> or whatever fits your code. > > > > Except he's obviously using some sort of formatting to control the > > number of columns and decimal places, so 'str(f)' is not going to cut > > it. Is the basic floating point number formatting functionality seen > > when using f-strings or '%' operator part of the float type or is it > > part of the f-string and % operator? > > It's part of the PSL's string library: "Format Specification > Mini-Language" > https://docs.python.org/3/library/string.html#format-specification-mini-lan… > > Has the OP stated if we're talking 'Python' or numpy, pandas, ...? > Just python, on a Raspberry Pi, so currently Python 3.9.2. -- Chris Green ·

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Re: Can one output something other than 'nan' for not a number values?
by Chris Green Feb. 19, 2024

Feb. 19, 2024

Grant Edwards <grant.b.edwards(a)gmail.com> wrote: > On 2024-02-16, Chris Green via Python-list <python-list(a)python.org> wrote: > > > I'm looking for a simple way to make NaN values output as something > > like '-' or even just a space instead of the string 'nan'. > > It would probably help if you told us how you're "outputting" them now > (the Python feaatures/functions used, not the actual output format). > > Are you using f-strings, the % operator, str.format(), or ?? > > I would be tempted to try monkey-patching the float class to override > the __format__ method. I have no idea what side effects that might > have, or if it's even used by the various formatting mechanisms, so > you might end up scraping bits off the walls... > It's using f'{...}' at the moment. -- Chris Green ·

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Matplotlib warning [error?] message
by Leif Svalgaard Feb. 19, 2024

Feb. 19, 2024

now I get: File e:\getmodpot.py:40 fig,ax = initPlot() File E:\mystuff.py:272 in initPlot fig,ax = plt.subplots(figsize=(xs,ys)) File ~\anaconda3\Lib\site-packages\matplotlib\pyplot.py:1501 in subplots fig = figure(**fig_kw) File ~\anaconda3\Lib\site-packages\matplotlib\_api\deprecation.py:454 in wrapper return func(*args, **kwargs) File ~\anaconda3\Lib\site-packages\matplotlib\pyplot.py:840 in figure manager = new_figure_manager( File ~\anaconda3\Lib\site-packages\matplotlib\pyplot.py:384 in new_figure_manager return _get_backend_mod().new_figure_manager(*args, **kwargs) File ~\anaconda3\Lib\site-packages\matplotlib\backend_bases.py:3573 in new_figure_manager File ~\anaconda3\Lib\site-packages\matplotlib\_api\deprecation.py:454 in wrapper return func(*args, **kwargs) File ~\anaconda3\Lib\site-packages\matplotlib\figure.py:2505 in __init__ "The Figure parameters 'layout' and 'constrained_layout' " File ~\anaconda3\Lib\site-packages\matplotlib\figure.py:213 in __init__ self.set(**kwargs) File ~\anaconda3\Lib\site-packages\matplotlib\artist.py:147 in <lambda> cls.set = lambda self, **kwargs: Artist.set(self, **kwargs) File ~\anaconda3\Lib\site-packages\matplotlib\artist.py:1227 in set return self._internal_update(cbook.normalize_kwargs(kwargs, self)) File ~\anaconda3\Lib\site-packages\matplotlib\cbook\__init__.py:1771 in normalize_kwargs for canonical, alias_list in alias_mapping.items() AttributeError: 'Figure' object has no attribute 'items' -- Leif Svalgaard leif(a)leif.org

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Testing (sorry)
by Grant Edwards Feb. 19, 2024

Feb. 19, 2024

Today I noticed that nothing I've posted to python-list in past 3 weeks has shown up on the list. I don't know how to troubleshoot this other than sending test messages. Obviously, if this shows up on the list, then I've gotten it to work... -- Grant

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Testing (sorry)
by Grant Edwards Feb. 19, 2024

Feb. 19, 2024

Today I noticed that nothing I've posted to python-list in past 3 weeks has shown up on the list. I don't know how to troubleshoot this other than sending test messages. Obviously, if this shows up on the list, then I'm making progress. [message 4] -- Grant

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Can one output something other than 'nan' for not a number values?
by Chris Green Feb. 18, 2024

Feb. 18, 2024

I'm looking for a simple way to make NaN values output as something like '-' or even just a space instead of the string 'nan'. This would then make it much easier to handle outputting values from sensors when not all sensors are present. So, for example, my battery monitoring program outputs:- Battery Voltages and Currents Leisure Battery - 12.42 volts -0.52 Amps Starter Battery - 12.34 volts -0.01 Amps If the starter battery sensor has failed, or is disconnected, I see:- Battery Voltages and Currents Leisure Battery - 12.42 volts -0.52 Amps Starter Battery - nan volts nan Amps What I would like is for those 'nan' strings to be just a '-' or something similar. Obviously I can write conditional code to check for float('nan') values but is there a neater way with any sort of formatting string or other sort of cleverness? -- Chris Green ·

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