> On 30 Sep 2024, at 06:52, Abdur-Rahmaan Janhangeer via Python-list
> wrote:
>
>
> import polars as pl
> pl.read_json("file.json")
>
>
This is not going to work unless the computer has a lot more the 60GiB of RAM.
As later suggested a streaming pars
ing wrong with functions in a
> module.
Python is great in allowing you to pick your style.
A few lines in a module, a couple of functions or use classes.
But once your code gets big the disciple of using classes helps
maintenance. Code with lots of globals is problematic.
Barry
--
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ivalent of class
> attributes at a single point which are then available to all commands?
I do not know typer. But the general solution is to create an instance of your
class
and tell typer to call member function of the instance.
app = Application()
…
typer.set_callback(app.my_handler)
Barry
&
ut or stderr.
I recall that does not always work for app code that expects the macOS options
that are passed in when launching from GUI.
Barry
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:
cd .app/Contents
then have a look around.
Beware that you cannot use print to stdout for a .app as its stdin/stdout do
not go anywhere useful.
What I do is use code like this in the main function:
sys.stdout = open( '/home/barry/debug.log', 'w', 1 )
sys.stderr = s
> On 2 Sep 2024, at 15:00, marc nicole via Python-list
> wrote:
>
> I am using Python 2.7 on Windows 10
Why? Install Python 3.12 and it will be easier to get help and support.
If you have legacy that still needs porting then you can install 3.12 along side
the unsupported 3
no such original-message
> has appeared in the thread.
I see 11 messages and none from Stefan. Maybe replies to off list emails?
Barry
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\Python\__pycache__\MetalMummysMods_Ehlers-DanlosMod.cpython-37.pyc'.
> Element ID: (No Element)
> Element Name: (No Element)
These are app specific errors. The most likely source of help will be to ask
Zerbu,
who I assume is the author and maintainer.
Barry
> ---
>
>
&g
> On 6 Aug 2024, at 02:49, Piper McCorkle via Python-list
> wrote:
>
> $ /tmp/sources/Python-3.12.4/configure --enable-shared --with-system-expat
> --enable-optimizations --prefix=
I assume that you must provide a value for --prefix. The linux default would be
--pre
ad this is
> significant faster even than fork.
using processes means you are more robust and can survive a process crash.
using async, assuming you do enough I/O, will out perform threads.
Barry
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ase advise,
Please duplicate the problem and if after doing that you have not fixed
the problem post details here.
Barry
> Schimon
> --
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>
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> On 9 Jul 2024, at 06:13, אורי via Python-list <python-list@python.org>
> wrote:
>
> I tried to subscribe to Python-ideas
These days ideas are discussed on https://discuss.python.org/
It is rare to see an idea on the mailing list.
Barry
--
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> On 7 Jul 2024, at 23:21, Barry via Python-list wrote:
>
>
>
>> On 7 Jul 2024, at 22:09, Tomas Ukkonen via Python-list
>> wrote:
>>
>>Py_Initialize();
>
> You also need to tell python to init threading.
I'm in front of my dev machine
d.
In this case the OP is on an RPi.
Barry
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a tmp file.
Close the tmp file.
Then use os.rename(tmpfile, productionfile).
This is guaranteed that any process that reads the file will only see all the
old file contents or all the new file contents, never a mix of both.
Barry
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month of which less than 200 are spam.
A few years ago the spam count was greater than a 1,000 a month.
I have been using spambayes for a very long time, 20 years I guess at this
point and bayesian categorisation has stood the test of time for me.
For me the spammers have not won, I have the tec
> On 13 Jun 2024, at 11:01, Yair Eshel via Python-list
> wrote:
>
> I read this is a good place to give some suggestions for features in
> python.
Best place these days is to raise an idea on https://discuss.python.org/
Beware that this idea has come up in the past and was r
ages in try using
that.
Barry
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ython and pip and enabled by the distros.
There are ways to turn off the blocking, but it’s strongly discouraged
by the distros.
Barry
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all-users and you should be able to
uninstall as any user.
But this will require admin privs for both install and uninstall. As assume you
can find out how to bet the admin priv required for your automation.
Barry
>
> Also, with the approach of using msiexec.exe to uninstall different
work.
It is on https://sourceforge.net/projects/cxx/
Barry
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> On 1 Apr 2024, at 15:52, Jacob Kruger via Python-list
> wrote:
>
> Found many, many mentions of errors, with some of the same keywords, but, no
> resolutions that match my exact issue at all.
Try asking the pyinstaller developers. I think there is a mailing list.
Barr
ller and that error leads to people discussing why it
happens it looks like.
Barry
--
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without the -lpython and it should
just work.
Barry
>
> Le ven. 29 mars 2024 à 10:10, Barry a écrit :
>>
>>
>>
>>> On 28 Mar 2024, at 16:13, Olivier B. via Python-list
>>> wrote:
>>>
>>> But on Linux, it seems that linking to
nality only available on Windows?
Python limited API works on linux, but you do not link against the .so on linux
I recall.
You will have missed that libpython3.so is a symlink to libpython3.11.so.10.
Windows build practices do not translate one-to-one to linux, or macOS.
Barry
--
https:/
You should considered also announcing on https://discuss.python.org/ which is a
lot more active then this list.
Barry
> On 25 Mar 2024, at 04:13, Erik Max Francis via Python-list
> wrote:
>
> I'm pleased to announce the release of EmPy 4.1.
>
> The 4._x_ series is
e it separately, which is inline with Fedora’s
policy of not vendoring code into a package.
Barry
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ckage.
Fedora leaves all the batteries intact and rhel I assume.
Barry
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> On 15 Mar 2024, at 19:51, Thomas Passin via Python-list
> wrote:
>
> I've always like writing using the "or" form and have never gotten bit
I, on the other hand, had to fix a production problem that using “or”
introducted.
I avoid this idiom because it fa
> On 10 Mar 2024, at 14:49, Thomas Passin via Python-list
> wrote:
>
> That and there's a registry setting:
>
> https://learn.microsoft.com/en-us/windows/win32/fileio/maximum-file-path-limitation
>
Yep that and rules about size of parts of the path.
Barry
-
and 255 for the path part that will use
1 for the leading \. Getting an error for a name that is 255 is not surprising.
Other api allow for 65535 limit, not sure on its additional limits.
Barry
--
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> On 24 Feb 2024, at 04:36, Steve GS via Python-list
> wrote:
>
> How do I extract the values
> from args?
You can look up the args in documentation.
You can run the example code MRAB provided and see what is printed to learn
what is in the args.
Barry
--
https://
Python ideas are discussed here these days: https://discuss.python.org/
Suggest you raise this there in the Ideas category.
Barry
> On 24 Jan 2024, at 17:11, Kerrick Staley via Python-list
> wrote:
>
> I think we should define a unittest.mock.NAN constant that can
e python and python3 aliases.
Barry
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c.get_objects() then summerize
the number of each type. Part 2 is to print the delta after an interval of a
2nd summary.
Leaks of objects show up as the count of a type increasing every time you
sample.
Barry
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works well and robustly.
Barry
--
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t and the circumstances.
When this has been seen in the past it has been promptly fixed by the
maintainer.
Barry
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11.
If so what is its contents?
I've tried with and without a py.ini and cannot duplicate what you see.
Barry
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for-windows
To create a py.ini does require a user to understand what %localappdata% means.
Some windows users, reasonable, do not use the CLI and know about that syntax
for environment variables.
Barry
--
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thon 3.12. I suspect Windows, because a
> change in the way Python 3.12 uses shebang lines should be visible in the
> documentation.
See my earlier reply with info on ftype etc output.
What do you see on your windows 10 vs windows 11?
Barry
--
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ften use a wrapper class in place of a simple str.
If you have a class SqlString then your type becomes list[SqlString].
You may find that SqlString gains interesting methods over time.
Barry
--
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thob.exe in the venv bin folder.
Barry
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> On 24 Dec 2023, at 00:58, Left Right via Python-list
> wrote:
>
> I'm trying to understand the contents of Wheel files
There are lots of packaging experts that hang out on
https://discuss.python.org/ you are likely to get a response there if not here
replies.
major=3, minor=10, micro=11, releaselevel='final',
serial=0)
K:\shebang>assoc .py
.py=Python.File
K:\shebang>ftype Python.File
Python.File="C:\WINDOWS\py.exe" "%L" %*
Windows 11 output
: 11:52:10.36 K:\shebang
: \\BARNSTONE\barry> py -0
-V:3.12 *
ot;real" DirEntry.
Barry
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> On 23 Dec 2023, at 00:15, Thomas Passin via Python-list
> wrote:
>
> In neither case is the shebang line used.
As i understand it, not in front of my windows box to check.
The handler for .py file extension is set to be the py.exe
It is py.exe that understands shebang l
> On 22 Dec 2023, at 14:58, Christian Buhtz via Python-list
> wrote:
>
> On Windows 11 it usually is the "Terminal" which is different from cmd.exe.
In terminal app you can run cmd.exe or powershell, so it is basically the same.
Barry
--
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> On 22 Dec 2023, at 14:29, Sibylle Koczian wrote:
>
> #!/usr/bin/env/python
That was what i thought you had and it will not work.
The BOM suggestion is worth trying.
Barry
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angegebene
> Datei nicht finden."
>
> Without the "env" in the shebang line and only without it everything
> works as expected - but that's contrary to the documentation, isn't it?
This suggests a typo in the shebang line. Is there a space between env and
python?
Barry
>
> Thank you for information,
> Sibylle
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>
--
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'b': v5
'd': v6
}
}
Personally I would not use .ini style these days as the format does not include
type of the data.
Also I would not use the ast.literal_eval as it makes debugging errors in the
data harder.
Barry
--
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man can read it.
For example:
import json
config = {
'key2': 42,
'key1': 'value 1',
}
print(json.dumps(config, indent=4, separators=(', ', ': '), sort_keys=True))
% python $T/a.py
{
"key1": "value 1",
"key2": 42
}
Barry
--
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s as an idea on https://discuss.python.org/
to get the attention of the core devs.
Barry
>
>
> Regards,
> DG
> --
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>
--
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> On 13 Nov 2023, at 17:48, Dom Grigonis wrote:
>
> Short circuiting happens, when:
> xor([True, True, False, False], n=1)
> At index 1 it is clear that the answer is false.
Can you share an example with 4 values that is true?
And explain why it is xor.
Barry
--
https://
today.
Also the people that know flet are on discord. You may find someone here.
Barry
>
> --
>
> Jacob Kruger
> +2782 413 4791
> "Resistance is futile!...Acceptance is versatile..."
>
> --
> https://mail.python.org/mailman/listinfo/python-list
>
--
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erstand how xor can be short circuited.
For AND or OR only looking at the first arg works.
But that does not work for xor right?
Barry
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ing_problem
It is common to simulate hardware that does not exist yet and run software in
the simulated environment.
Barry
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On 2 Oct 2023, at 16:02, Jen Kris via Python-list
wrote:
Iwant to write a list of 64-bit integers to a binary file. Everyexample
I have seen in my research convertsit to .txt, but I want it in binary.
I wrote this code,based on some earlier work I have done:
buf= b
th a default value of False.
I would use a class variable not an instance variable.
class OnlyOne:
sole_instance = None
def __init__(self):
assert OnlyOne.sole_instance is None
OnlyOne.sole_instance = self
Barry
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version of python changes.
It is not a bug in python.
Barry
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the value is stored in a 64 bit int for unix and
windows.
There is a comment that it covers the range of +-232 years.
Barry
> --
> https://mail.python.org/mailman/listinfo/python-list
>
--
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E
> On 3 Sep 2023, at 22:49, Chris Green via Python-list
> wrote:
>
> Mostly I am managing to get things to work as I want but better
> documentation of gpiod would be a great help.
Ask the author? https://github.com/aswild/python-gpiod
Maybe read the source code for hints?
gs
to translate.
This is covered in the docs at
https://docs.python.org/3/library/gettext.html#localizing-your-module
Barry
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output the errors in a machine readable format to allow editors to
auto fix.
I am learning rust and it is very good at suggesting fixes.
There is a command to apply fixes automatically, cargo fix.
Barry
--
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s a better place to ask, please advise.
Where do you get your python from?
You may find that the organisation that packages python that you use has such a
list.
Barry
>
> Thanks.
>
> --
> Bob Kline
> https://www.rksystems.com
> mailto:bkl...@rksystems.com
esponsible with dealing in a application-domain specific with
with that situation.
In other cases I have API that returns a default list, often [].
It all depends on the design needs.
Barry
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> On 7 Jun 2023, at 16:39, Florian Guilbault via Python-list
> wrote:
>
> Dear Python Technical Team,
>
> I hope this email finds you well. I am reaching out to you today to seek
> assistance with an issue I am facing regarding the installation of 'pip'
> despite my numerous attempts to reso
ft app store stubs for python?
The python.org uninstall always works in my experience, but is not related to
the app store stubs.
Also why do you think you need to reinstall python?
It would be very unusual that that would be necessary.
Barry
> --
> https://mail.python.org/mailman/listinfo/p
e subprocess.
You can crash idle with bugs in the code that you are developing.
By running your code in a subprocess idle protects itself, and your edits from
bugs in your code.
Also if your code use tk then it would conflict with idle’s use of tk.
That is my assumption on why the subprocess is
simple cases it will work, but as your
code gets more complex it can break.
I rarely use reimport. Usually just exit python and start again.
If you are working on scripts then just run them from the Terminal
will work well with any need to use reimport.
Barry
>
>
>
>
> --
On 18 May 2023, at 13:56, Jason Qian wrote:
Hi Barry,
void handleError(const char* msg)
{
...
PyErr_Fetch(&pyExcType, &pyExcValue, &pyExcTraceback);
PyErr_NormalizeException(&pyExcType, &pyExcValue, &pyExcTraceback);
handleError("PyImport_Import()");
> }
> }
> }
> void handleError(const char* msg)
> {
> ...
> "PyImport_Import() - ImportError('Error: Reinit is forbidden')"
> }
You do not seem to printing out msg, you have assumed it means reinit it seems.
What does
changes that
> could have caused this issue, but found none. I'm uncertain about the cause
> of this error and how to resolve it. Any insights or suggestions would be
> greatly appreciated.
>
> Thank you in advance for your assistance!
Pip is installed by default with the pyt
e.
Being a Fedora user i needed to learn how to install missing pieces of pyrhon
on ubuntu.
We searches for:
ubuntu install pip
Ubuntu install idle
Both provide lots of answers. Did your searches fail to turn up answers?
Barry
>
> --
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>
--
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the net for an answer but only got what I had already tried
>
> any pointers what I'm doing wrong (other than using windows '->)
I take it you have business reasons to use an obsolete version python.
Where did you get your version of python from?
You seem to be doing the righ
> On 12 May 2023, at 21:59, Thomas Passin wrote:
>
> On 5/12/2023 2:42 AM, David John wrote:
>> Hi,
>> I recently have been experiencing issues with the pip installation module.
>> I have python version 3.11 installed. I've checked the directory installed
>> in the systems variables window and
ystems:
>
> sudo apt-get install python3-tk
>
> For the Yum package manager:
>
> yum install tkinter
>
> You may also need to install ImageTk:
>
> sudo apt-get install python3-pil.imagetk (Debian-based)
>
> On Centos/Red Hat derived systems, you will also nee
/npcole/npyscreen
> which returns a 404.
>
> There seems to be a copy in Github at
> https://github.com/npcole/npyscreen/commits/master,
> but the last commit was almost 4 years ago.
>
> Maybe it "just works" and is suitable for production?
Maybe this, recently lwn.
> On 13 Apr 2023, at 00:19, jak wrote:
>
> Barry ha scritto:
>>
>>>> On 12 Apr 2023, at 18:10, jak wrote:
>>> Hi everyone,
>>> some time ago I wrote a class to determine if an ipv4 address belonged
>>> to a subnet. Seldom using pytho
adcast}")
>print(f"mask: {sn.mask}")
>print(f"wildcard: {sn.wildcard}")
>print(f"host_min: {sn.host_min}")
>print(f"host_max: {sn.host_max}")
>print(f"Avaible hosts: {sn.hosts_num}")
>print(f"Class: {sn.net_class}")
>
>tst_hdr = '10.0.0.31'
>is_not = 'is '
>if not tst_hdr in sn:
>is_not = 'is NOT '
>print("hdr %s %sin range %s - %s" %
> (tst_hdr, is_not, sn.host_min, sn.host_max))
>
> if __name__ == '__main__':
>main()
There is this https://docs.python.org/3/howto/ipaddress.html if you just want a
solution.
Or are you after code review feedback?
Barry
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o C++.
Once you have that installed there are bat files that setup environment in the
terminal.
Then you can use cl, nmake etc
Barry
>
> -Original Message-
> From: Eryk Sun
> Sent: Friday, March 31, 2023 12:55 PM
> To: Jim Schwartz
> Cc: python-list@python.org
> S
I heard it on reasonably believable authority that the FLUFL took the year off.
Lamentable.
-Barry
> On Apr 1, 2023, at 11:19, Skip Montanaro wrote:
>
> Just wanted to throw this out there... I lament the loss of waking up on
> April 1st to see a creative April Fool's D
ot;.
You need to provide enough details for people to help you.
Include which OS you are using.
Where you got python from.
How you installed the libraries you are trying to use.
Commands and error messages you are seeing.
Barry
> --
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macOS and Windows.
I found that PyQt was easier to get working.
Barry
--
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be less flexible to work with then
adding a py.ini. On my Windows 11 I added %userprofile%\AppData\Local\py.ini.
To make python 3.8 the default that py.exe uses put this in py.ini:
[defaults]
python=3.8-64
python3=3.8-64
Barry
> --
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>
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> On 31 Mar 2023, at 09:33, Sumeet Firodia wrote:
>
> Thanks Barry.
>
> One more thing is that pip --version also refers to python 3.10
>
> C:\Users\admin>pip --version
> pip 23.0.1 from
> C:\Users\admin\AppData\Local\Packages\PythonSoftwareFoundation.Python
's called math.pow. That on its own should be a strong indication
> that it's designed to work with floats.
So long as you know that the math module is provided to give access the C
math.h functions.
Barry
>
> ChrisA
> --
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>
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> On 30 Mar 2023, at 18:11, Barry Scott wrote:
>
>
>
>> On 30 Mar 2023, at 10:15, Andreas Eisele wrote:
>>
>> I sometimes make use of the fact that the built-in pow() function has an
>> optional third argument for modulo calculation, which is handy whe
not installed.
>> WARNING: Skipping 3.10.10 as it is not installed.
PIP is for installing python modules not the python program.
The python program is installed by running the .exe that you get from
python.org <http://python.org/>, for example.
Use the standard Windows method to uninstall
that the built-in version can not do, and
> if not, why is it even there?
Maybe math.pow() aways using IEEE 754(?) float point via the C runtime math
routines.
pow() will give int answer if called with int args.
Barry
> Thanks in advance for any enlightening comment on
on 3.11 from python.org and run the installer.
In a cmd terminal window run py.exe and you should get the python prompt.
Barry
>
>
>
> References
>
> Visible links
> 1. https://go.microsoft.com/fwlink/?LinkId=550986
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> On 23 Mar 2023, at 14:34, Arnaud Loonstra wrote:
>
> On 23-03-2023 13:33, Barry Scott wrote:
>>>> On 23 Mar 2023, at 08:46, Arnaud Loonstra wrote:
>>>
>>> Hi all,
>>>
>>> I'm running in a crash due to a ResourceWarning (
simplefilter("ignore", ResourceWarning)
>
> to my python code. But I'd rather prevent this from happening in the first
> place.
>
> Any suggestion very welcomed cause I'm puzzled.
What 3rd party C extension are you running with?
I'd be surprised
. you can then right-click the .py file and choose whichever program you
> like to open with.
Use py.exe which should in the windows folder to run .py files.
Barry
> I'm inclined to advise you to focus on getting virtual environments working
> next and leave all that auto-opening to late
d to the medium. WHQL?
That had the effect of stooping driver manufactures having firmware to win
benchmarking.
Now the OS will use the commands to the drive that allow the OS to know the
data is safe.
Barry
>
> --
> Greg
> --
> https://mail.python.org/mailman/listinfo/python-li
s to build the int value. And some compilers indeed do, the linux
kernel folks see this in gcc generated code.
I understand you have to use the new atomics features.
Barry
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e there are 4 byte code ops executed.
Python's eval loop can switch to another thread between any of them.
Its is not true that the GIL provides atomic operations in python.
Barry
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Re sqlite and threads. The C API can be compiled to be thread safe from my
Reading if the sqlite docs. What I have not checked is how python’s bundled
sqlite
is compiled. There are claims python’s sqlite is not thread safe.
Barry
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27;t do the very
> obvious and easy thing
> of giving me this info:
>
>attempt to call + with 'abc' ,
> 123.45 <--
It is not easy to do that in a robust and reliable way for any object.
You can end up in the code to generate the error message itself breaking.
For example using unbounded CPU time when attempting to get the string repr of
the variable.
Barry
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There is the traceback module that lets you find where you are called from.
Also there is the inspect module that also lets tou get at the stack in more
detail.
Barry
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to do either add the outfile to trace
or generate and write the report after runfunc returns.
I have not tested this, just read the docs out of curiosity
Here https://docs.python.org/3/library/trace.html
Barry
> def inner():
>print("Callee here.")
>
> Now I launched the program an
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