On 1/15/2024 7:24 PM, Thomas Passin wrote:
On 1/15/2024 6:27 PM, Greg Ewing via Python-list wrote:
On 16/01/24 11:55 am, Mats Wichmann wrote:
Windows natively has something called python.exe and python3.exe
which is interfering here
I'm wondering whether py.exe should be taught to recognise
On 1/15/2024 9:47 PM, Akkana Peck via Python-list wrote:
I wrote:
Also be warned that some modules (particularly if they're based on libraries
not written in Python) might not garbage collect, so you may need to use other
methods of cleaning up after those objects.
Chris Angelico writes:
On Tue, 16 Jan 2024 at 13:49, Akkana Peck via Python-list
wrote:
>
> I wrote:
> > > Also be warned that some modules (particularly if they're based on
> > > libraries not written in Python) might not garbage collect, so you may
> > > need to use other methods of cleaning up after those objects.
I wrote:
> > Also be warned that some modules (particularly if they're based on
> > libraries not written in Python) might not garbage collect, so you may need
> > to use other methods of cleaning up after those objects.
Chris Angelico writes:
> Got any examples of that?
The big one for me was
On 1/15/2024 6:27 PM, Greg Ewing via Python-list wrote:
On 16/01/24 11:55 am, Mats Wichmann wrote:
Windows natively has something called python.exe and python3.exe which
is interfering here
I'm wondering whether py.exe should be taught to recognise these stubs
and ignore them. This sounds
On 16/01/24 11:55 am, Mats Wichmann wrote:
Windows
natively has something called python.exe and python3.exe which is
interfering here
I'm wondering whether py.exe should be taught to recognise these stubs
and ignore them. This sounds like something that could trip a lot of
people up.
--
Greg
On 1/15/24 12:01, Thomas Passin via Python-list wrote:
On 1/15/2024 1:26 PM, Mats Wichmann via Python-list wrote:
On 1/15/24 09:44, Sibylle Koczian via Python-list wrote:
First and foremost I want to understand why I'm seeing this:
- Python scripts with "/usr/bin/env python3" as shebang line
On Tue, 16 Jan 2024 at 06:32, Akkana Peck via Python-list
wrote:
>
> > Frank Millman wrote at 2024-1-15 15:51 +0200:
> > >I have read that one should not have to worry about garbage collection
> > >in modern versions of Python - it 'just works'.
>
> Dieter Maurer via Python-list writes:
> > There
> Frank Millman wrote at 2024-1-15 15:51 +0200:
> >I have read that one should not have to worry about garbage collection
> >in modern versions of Python - it 'just works'.
Dieter Maurer via Python-list writes:
> There are still some isolated cases when not all objects
> in an unreachable cycle
On 1/15/2024 1:26 PM, Mats Wichmann via Python-list wrote:
On 1/15/24 09:44, Sibylle Koczian via Python-list wrote:
First and foremost I want to understand why I'm seeing this:
- Python scripts with "/usr/bin/env python3" as shebang line work as
expected on a computer with Windows 10 and
Frank Millman wrote at 2024-1-15 15:51 +0200:
>I have read that one should not have to worry about garbage collection
>in modern versions of Python - it 'just works'.
There are still some isolated cases when not all objects
in an unreachable cycle are destroyed
(see e.g. step 2 of
On 1/15/24 09:44, Sibylle Koczian via Python-list wrote:
In the Python documentation for versions 3.11 and 3.12 I found no
differences regarding py.exe and shebang lines.
Then I removed the "/env" from the shebang lines and could start the
scripts from the second computer. That certainly is
On 1/15/24 09:44, Sibylle Koczian via Python-list wrote:
First and foremost I want to understand why I'm seeing this:
- Python scripts with "/usr/bin/env python3" as shebang line work as
expected on a computer with Windows 10 and Python 3.11.5. They have
worked for years on this machine,
Am 15.01.2024 um 00:46 schrieb Mike Dewhirst via Python-list:
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
> I do have several circular references. My experience is that if I do not
> take some action to break the references when closing the session, the
> objects remain alive. Below is a very simple program to illustrate this.
>
> Am I missing something? All comments appreciated.
Python has normal
Hi all
I have read that one should not have to worry about garbage collection
in modern versions of Python - it 'just works'.
I don't want to rely on that. My app is a long-running server, with
multiple clients logging on, doing stuff, and logging off. They can
create many objects, some of
Op 14/01/2024 om 13:28 schreef Left Right via Python-list:
Python isn't a context-free language, so the grammar that is used to
describe it doesn't actually describe the language... so, it's a
"pretend grammar" that ignores indentation.
No it doesn't. Here is the definition of a block, it
On 15/01/24 21:13, Greg Ewing via Python-list wrote:
On 15/01/24 1:54 pm, dn wrote:
Soon after, Wirth simplified rather than expanded, and developed Pascal.
Before Pascal there was Algol-W, which Wirth invented as a rebellion
against how complicated Algol 68 was becoming.
When I first saw
On Mon, 15 Jan 2024 at 19:26, Greg Ewing via Python-list
wrote:
>
> On 15/01/24 9:07 pm, Chris Angelico wrote:
> > The grammar *can't* specify everything. If it did, it would have to
> > have rules for combining individual letters into a NAME and individual
> > characters into a string literal.
>
On 15/01/24 9:07 pm, Chris Angelico wrote:
The grammar *can't* specify everything. If it did, it would have to
have rules for combining individual letters into a NAME and individual
characters into a string literal.
The lexical level of a grammar can be, and often is, described
formally using
On 15/01/24 1:54 pm, dn wrote:
Soon after, Wirth simplified
rather than expanded, and developed Pascal.
Before Pascal there was Algol-W, which Wirth invented as a rebellion
against how complicated Algol 68 was becoming.
When I first saw this I was
stunned, then attracted to its simplicity,
On Mon, 15 Jan 2024 at 18:56, Greg Ewing via Python-list
wrote:
>
> On 15/01/24 1:28 am, Left Right wrote:
> > Python isn't a context-free language, so the grammar that is used to
> > describe it doesn't actually describe the language
>
> Very few languages have a formal grammar that *fully*
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