[issue32259] Misleading "not iterable" Error Message when generator return a "simple" type, and a tuple is expected

[Camion]

Camion  added the comment:

By the way, I guess if the problem arises like that, it's because it might be 
hard to distinguish both situations at the interpreter level, but if it was 
possible, it would be the best solution to have a different error message (even 
if I understand we should be very careful with the idea of changing the 
exception type, even in this case).

I mean : Eric shown an equivalent error, but both are only equivalent at the 
present discrimination level of the interpreter & language grammar.  I 
understand that distinguishing both those semantically different situation 
might be opening the Pandora box and it might be a bad idea... or not.

The point is that, if ever both those situations were in some way 
distinguishable, then... well... we certainly have no idea of how much code 
confronted with this specific situation AND treated it with exception handling, 
BUT, we might make the assumption that a frequent confrontation with this case 
would then already have been raised before, and consequently, it might be 
relevant, at least to keep it in mind for a future evolution (4.0) of the 
language.

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[issue30806] netrc.__repr__() is broken for writing to file

[INADA Naoki]

INADA Naoki  added the comment:


New changeset 3b9173d33adc2903e1af461214333b0052d7b1e9 by INADA Naoki (Steven 
Loria) in branch '2.7':
bpo-30806: Fix netrc.__repr__() format (GH-2491)
https://github.com/python/cpython/commit/3b9173d33adc2903e1af461214333b0052d7b1e9


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Re: Please tell me how to execute python file in Ubuntu by double clicking on file. (Posting On Python-List Prohibited)

[Chris Angelico]

On Sun, Dec 10, 2017 at 4:52 PM, Steve D'Aprano
 wrote:
> On Sun, 10 Dec 2017 02:01 pm, Chris Angelico wrote:
>
>> On Sun, Dec 10, 2017 at 12:56 PM, Steve D'Aprano
>>  wrote:
>>> Remember the context here: we're replying to a thread discussing somebody
>>> who is running Ubuntu with a GUI desktop environment. Of course there are
>>> *some* Linux systems which don't run a GUI at all, but you can't
>>> double-click on files on such systems, and they aren't Ubuntu, so they
>>> aren't relevant.
>>
>> Been a long time since I had an Ubuntu, but is it really the case that
>> you can't install Ubuntu without a GUI?
>
> I mispoke -- I meant something like "they aren't whatever Ububtu GUI the OP
> has installed".
>
> There is, apparently, headless Ubuntu, but it isn't clear to me whether they
> install X (or Mir, Wayland or some other alternative) or not. E.g. this:
>
> https://www.howtoforge.com/tutorial/ubuntu-gnome-vnc-headless-server/
>
> seems to suggest to me that X.org is already installed, I can see X utils
> being installed as a recommended package but I couldn't spot X being added as
> a dependency. So my *guess* is that even headless Ubuntu server includes an X
> server. (Or possibly Mir.)

Or that installing a VNC server automatically installs X11 or
equivalent. That's what I'd expect, though it's entirely possible that
a headless server still gets certain libraries installed.

ChrisA
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Re: Please tell me how to execute python file in Ubuntu by double clicking on file. (Posting On Python-List Prohibited)

[Steve D'Aprano]

On Sun, 10 Dec 2017 02:01 pm, Chris Angelico wrote:

> On Sun, Dec 10, 2017 at 12:56 PM, Steve D'Aprano
>  wrote:
>> Remember the context here: we're replying to a thread discussing somebody
>> who is running Ubuntu with a GUI desktop environment. Of course there are
>> *some* Linux systems which don't run a GUI at all, but you can't
>> double-click on files on such systems, and they aren't Ubuntu, so they
>> aren't relevant.
> 
> Been a long time since I had an Ubuntu, but is it really the case that
> you can't install Ubuntu without a GUI?

I mispoke -- I meant something like "they aren't whatever Ububtu GUI the OP
has installed".

There is, apparently, headless Ubuntu, but it isn't clear to me whether they
install X (or Mir, Wayland or some other alternative) or not. E.g. this:

https://www.howtoforge.com/tutorial/ubuntu-gnome-vnc-headless-server/

seems to suggest to me that X.org is already installed, I can see X utils
being installed as a recommended package but I couldn't spot X being added as
a dependency. So my *guess* is that even headless Ubuntu server includes an X
server. (Or possibly Mir.)



-- 
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“Cheer up,” they said, “things could be worse.” So I cheered up, and sure
enough, things got worse.

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Re: Please tell me how to execute python file in Ubuntu by double clicking on file. (Posting On Python-List Prohibited)

[Frank Millman]

"Rustom Mody"  wrote in message 
news:4f25d0a9-64a5-4d36-b072-97e293a7c...@googlegroups.com...




I was sending some files to some students.
Since it was more than one, the natural choice was a tarball.
[I believe that since it was a very tiny total space I did not compress the
tarball… but I dont remember this part exactly]
The point is that instead of sending a stuff.tgz or stuff.tar file I sent a 
file

called just stuff; ie I must have done:
$ tar xvf stuff directory
rather than the more normal
$ tar xvf stuff.tar directory

I got a return mail soon enough: “Your file is corrupt; it wont open”
(in file-roller or whatever tar-GUI the kids nowadays use)

I could have given them the answer: There are no associations in
Linux. Just
$ mv stuff stuff.tar
and it will work
As it happens I am lazy; easier to believe that my file was "wrongly" named;
did the mv myself, and resent the now "correct" tarball; problem solved.



I had a similar experience a few years ago, but the recipient was not a 
student, but a bank's IT department!


I had to send them an encrypted document, and their spec specified PGP. I 
used GPG instead, which produces exactly the same result, but with a .gpg 
file extension.


I was told that my file did not work. After much time trying to figure out 
what was wrong, I spoke to one of their staff over the phone, and asked him 
to right-click on the file, select 'rename', and change '.gpg' to '.pgp'. He 
did so, tried again, and said 'Ah, now it works'.


Frank Millman


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[issue32259] Misleading "not iterable" Error Message when generator return a "simple" type, and a tuple is expected

[Camion]

Camion  added the comment:

I wrote it like that on purpose, Steven : My goal was not to show the message 
itself which (I believe) was sufficiently described in the explanation, but to 
show how hard it might be to understand the mistake in regard with the error 
message, even here, with a real life but not outrageously complicated code. :-)

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[issue32255] csv.writer converts None to '""\n' when it is first line, otherwise '\n'

[Licht Takeuchi]

Licht Takeuchi  added the comment:

The current implementation does not quote in most case. IOW, the patch which 
makes all '' is quoted is the breaking change (Note that there are some 
applications does not use quoting).

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[issue32255] csv.writer converts None to '""\n' when it is first line, otherwise '\n'

[Licht Takeuchi]

Licht Takeuchi  added the comment:

I think the first one is buggy and there are two reasons.

1. The both are valid CSV. The double quoting is unnecessary. Some other 
applications, eg. Excel, does not use the double quoting.
Also, the current implementation make to quote only if the string is '' and the 
output is at the first line.

2. '' is not quoted when the two columns case.
## Input:
```
import csv
fp = open('test.csv', 'w')
w = csv.writer(fp, dialect=None)
w.writerow(['', ''])
w.writerow(['3', 'a'])
fp.close()
```
## Output:
```
,
3,a
```

These seem inconsistent and the quoting is unnecessary in this case.

# References
http://www.ietf.org/rfc/rfc4180.txt

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Re: Please tell me how to execute python file in Ubuntu by double clicking on file. (Posting On Python-List Prohibited)

[Rustom Mody]

On Sunday, December 10, 2017 at 10:12:38 AM UTC+5:30, Rustom Mody wrote:

> I was sending some files to some students. 
> Since it was more than one, the natural choice was a tarball.
> [I believe that since it was a very tiny total space I did not compress the 
> tarball… but I dont remember this part exactly]
> The point is that instead of sending a stuff.tgz or stuff.tar file I sent a 
> file 
> called just stuff; ie I must have done:
> $ tar xvf stuff directory
> rather than the more normal
> $ tar xvf stuff.tar directory

Er… Not xvf of course but cvf
[And yeah the v is not necessary]
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Re: Please tell me how to execute python file in Ubuntu by double clicking on file. (Posting On Python-List Prohibited)

[Rustom Mody]

On Friday, December 8, 2017 at 6:40:17 AM UTC+5:30, Python wrote:
> On Thu, Dec 07, 2017 at 01:29:11PM +1100, Steve D'Aprano wrote:
> > On Thu, 7 Dec 2017 08:22 am, Python wrote:
> > >> > Linux doesn’t do “OS file associations”.
> > >> 
> > >> Then how does my Linux box know that when I double-click on a text file, 
> > >> it
> > >> launches kwrite rather than (say) the Gimp or LibreOffice?
> > > 
> > > The answer to that is (sadly) complicated.
> > 
> > Actually, no, the answer to my question is very simple: Lawrence is mistaken
> > about Linux not doing file associations. It does -- it is merely handled by
> > the desktop environment (if there is one).
> 
> Pedantically speaking, this is only *probably true*, not certainly
> true (e.g. running Linux on a text console with something like
> midnight commander, some unrelated file manager while running a
> particular desktop environment, etc.).  
> 
> But more importantly, practically speaking, it still doesn't really
> provide much more help to the OP than Lawrence's answer.  He may well
> know already that the desktop environment is what does the job (and
> probably does even, in broad terms, if he's familiar with computers in
> general), but have no idea how to configure it.  A reasonably helpful
> answer would be one that mentioned a few of the likely possibilities
> (Gnome, KDE, Unity, /etc/mime.types, "other"), and gave hints for how
> to find out the answer for each.  A thoroughly helpful answer would
> be, well, outside the scope of this list/group.
> 
> Pedantry has its place, FWIW. In the computer field, as with other
> science and engineering disciplines, often precision is much more
> essential than in other fields.  I personally find such precision is
> especially warranted if you take it upon yourself to criticize what
> someone else has said.  Though, providing such precision via natural
> language often turns out to be more challenging than one would hope...


I was sending some files to some students. 
Since it was more than one, the natural choice was a tarball.
[I believe that since it was a very tiny total space I did not compress the 
tarball… but I dont remember this part exactly]
The point is that instead of sending a stuff.tgz or stuff.tar file I sent a 
file 
called just stuff; ie I must have done:
$ tar xvf stuff directory
rather than the more normal
$ tar xvf stuff.tar directory

I got a return mail soon enough: “Your file is corrupt; it wont open”
(in file-roller or whatever tar-GUI the kids nowadays use)

I could have given them the answer: There are no associations in
Linux. Just
$ mv stuff stuff.tar
and it will work
As it happens I am lazy; easier to believe that my file was "wrongly" named;
did the mv myself, and resent the now "correct" tarball; problem solved.


Whether there was nothing wrong in what I did, the "wrong-right" was de facto,
or de jure… I will leave to more wise persons than myself
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Re: Please tell me how to execute python file in Ubuntu by double clicking on file. (Posting On Python-List Prohibited)

[Thomas Jollans]

On 10/12/17 04:01, Chris Angelico wrote:
> but is it really the case that you can't install Ubuntu without a GUI?

Of course not. There are millions of people using Ubuntu on servers,
without as much as a whiff of GUI.

I'm rather sure that the server version of Ubuntu makes significantly
more money for Canonical than the desktop one, too.

-- Thomas

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Re: Please tell me how to execute python file in Ubuntu by double clicking on file. (Posting On Python-List Prohibited)

[Chris Angelico]

On Sun, Dec 10, 2017 at 2:39 PM, Michael Torrie  wrote:
> On 12/09/2017 08:01 PM, Chris Angelico wrote:
>> Been a long time since I had an Ubuntu, but is it really the case that
>> you can't install Ubuntu without a GUI?
>
> Of course not.  Ubuntu is used in headless server situations all the time.

That's what I thought. Anyhow, the other half still stands.

ChrisA
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Re: Benefits of unicode identifiers (was: Allow additional separator in identifiers)

[Thomas Jollans]

On 10/12/17 02:42, Steve D'Aprano wrote:
> On Sun, 10 Dec 2017 09:20 am, Terry Reedy wrote:
> 
>> On 12/9/2017 5:57 AM, Gilmeh Serda wrote:
>>
>>> And next demands to allow Unicode as keywords in a translated version of
>>> Python
>>
>> Python's liberal open source license allows people to revise and
>> distribute their own python or python-like interpreters.  I believe
>> there are already a couple of non-english versions aimed at schoolkids.
>> The cpython core developer group has nothing to do with such.
> 
> I don't know who their target audiences are, but there's a German and Chinese
> version of Python.
> 
> http://www.fiber-space.de/EasyExtend/doc/teuton/teuton.htm
> 
> http://www.chinesepython.org/english/english.html
> 
> My *guess* is that Teuton is intended as a proof-of-concept just to show it
> can be done,

That's certainly what it looks like, though the documentation page reads
like a bad joke (or a once-mediocre one that really hasn't aged well).

Joke or not, it does appear to be real, however, and a part of this long
dead and forgotten package: https://pypi.python.org/pypi/EasyExtend/3.0.1

-- Thomas
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Re: Please tell me how to execute python file in Ubuntu by double clicking on file. (Posting On Python-List Prohibited)

[Michael Torrie]

On 12/09/2017 08:01 PM, Chris Angelico wrote:
> Been a long time since I had an Ubuntu, but is it really the case that
> you can't install Ubuntu without a GUI? 

Of course not.  Ubuntu is used in headless server situations all the time.
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[issue32245] OSError: raw write() returned invalid length on latest Win 10 Consoles

[Larry Hastings]

Change by Larry Hastings :


--
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[issue32255] csv.writer converts None to '""\n' when it is first line, otherwise '\n'

[Nitish]

Nitish  added the comment:

Which scenario you think is the wrong behaviour in this case? First one or 
second one?

I don't know much about csv module, but I thought it was a deliberate choice 
made to quote all empty lines and hence considered the second scenario as 
buggy. But your pull requests seems to fix the first case. Am I missing 
something here?

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Re: Please tell me how to execute python file in Ubuntu by double clicking on file. (Posting On Python-List Prohibited)

[Chris Angelico]

On Sun, Dec 10, 2017 at 12:56 PM, Steve D'Aprano
 wrote:
> Remember the context here: we're replying to a thread discussing somebody who
> is running Ubuntu with a GUI desktop environment. Of course there are *some*
> Linux systems which don't run a GUI at all, but you can't double-click on
> files on such systems, and they aren't Ubuntu, so they aren't relevant.

Been a long time since I had an Ubuntu, but is it really the case that
you can't install Ubuntu without a GUI? Anyhow, your first part is
correct: without a GUI, you can't exactly double-click on a file.

(No doubt someone's going to become even more pedantic now and point
out some way in which you can double-click something without a GUI.
Probably involving networked file systems or something. If I've
learned one thing from this list, it's that there is ALWAYS someone
more pedantic than you are.)

ChrisA
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[issue17972] inspect module docs omits many functions

[Martin Panter]

Change by Martin Panter :


--
dependencies: +Online doc does not include inspect.classify_class_attrs

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Re: Please tell me how to execute python file in Ubuntu by double clicking on file. (Posting On Python-List Prohibited)

[Steve D'Aprano]

On Fri, 8 Dec 2017 12:08 pm, Python wrote:

> But more importantly, practically speaking, it still doesn't really
> provide much more help to the OP than Lawrence's answer.

I wasn't responding to the OP, I was responding to Lawrence. If I had a
solution for the OP beyond what others have already said (especially Thomas
Jollans' link to an AskUbuntu post), I would have given it.

Practically speaking, your responses to me don't help the OP either, do they?
So why single me out for criticism for *exactly* the same thing that you
yourself are doing?


> He may well 
> know already that the desktop environment is what does the job (and
> probably does even, in broad terms, if he's familiar with computers in
> general), but have no idea how to configure it.

Anything is possible, but if he were that clueful, he would know that this has
nothing to do with Python and he should be asking in a forum dedicated to his
preferred desktop environment. The fact that this is a Python script is
irrelevant.


> A reasonably helpful 
> answer would be one that mentioned a few of the likely possibilities
> (Gnome, KDE, Unity, /etc/mime.types, "other"), and gave hints for how
> to find out the answer for each.  A thoroughly helpful answer would
> be, well, outside the scope of this list/group.

Arguably -- and I'm not sure that I personally would take this position -- it
might be said that somebody clueless enough to ask a desktop-specific
question without specifying which desktop he is running, would only be
confused rather than enlightened by an answer which lists three or more
desktops.

If we take a user-centric position, there's a lot to be said for the
attitude "Don't bother me with technical details, I just want to make the
file executable when I double-click on it".

(I presume that there's a single, trivial, right answer to this question on
Mac OS and Windows.)


> Pedantry has its place, FWIW. In the computer field, as with other
> science and engineering disciplines, often precision is much more
> essential than in other fields.  I personally find such precision is
> especially warranted if you take it upon yourself to criticize what
> someone else has said.

There's a famous story where some English Lit student took it upon themselves
to criticise Isaac Asimov for his claim to be living in a century where we
finally knew the basics of how the universe worked. Asimov's response was to
quote something he had once told his editor, John Campbell:

[W]hen people thought the earth was flat, they were wrong. When people
thought the earth was spherical, they were wrong. But if you think that
thinking the earth is spherical is just as wrong as thinking the earth
is flat, then your view is wronger than both of them put together.

http://hermiene.net/essays-trans/relativity_of_wrong.html

https://en.wikipedia.org/wiki/Wronger_than_wrong

(This is becoming ever more relevant again, as for some reason -- possibly
Poe's Law -- the number of people on the Internet claiming to believe the
world is flat is on the rise.)

If you think that my statement is just as wrong as Lawrence's statement,
you're wronger than both of us together :-)


Remember the context here: we're replying to a thread discussing somebody who
is running Ubuntu with a GUI desktop environment. Of course there are *some*
Linux systems which don't run a GUI at all, but you can't double-click on
files on such systems, and they aren't Ubuntu, so they aren't relevant.


> Though, providing such precision via natural 
> language often turns out to be more challenging than one would hope...

Indeed.




-- 
Steve
“Cheer up,” they said, “things could be worse.” So I cheered up, and sure
enough, things got worse.

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[issue32262] Fix linting errors in asyncio code; use f-strings consistently

[Yury Selivanov]

Yury Selivanov  added the comment:

I think it's OK. I want asyncio code to stay modern and up to date.  git blame 
is not a problem here, as only one-two lines are changed per function. Code 
consistency is more important.

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Re: Benefits of unicode identifiers (was: Allow additional

[Steve D'Aprano]

On Sat, 9 Dec 2017 09:57 am, Gilmeh Serda wrote:

> And next demands to allow Unicode as keywords in a translated version of
> Python
>  will make open source go away. For good.


Do you seriously think that because *one* project forks their code base and
introduces non-English keywords, the tens of hundreds of thousands of other
projects (including *enormous* projects like the Linux kernel, LibreOffice,
Apache, Mozilla, etc) will all say "well, that's it, we're shutting down"?



-- 
Steve
“Cheer up,” they said, “things could be worse.” So I cheered up, and sure
enough, things got worse.

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Re: Benefits of unicode identifiers (was: Allow additional separator in identifiers)

[Steve D'Aprano]

On Sun, 10 Dec 2017 09:20 am, Terry Reedy wrote:

> On 12/9/2017 5:57 AM, Gilmeh Serda wrote:
> 
>> And next demands to allow Unicode as keywords in a translated version of
>> Python
> 
> Python's liberal open source license allows people to revise and
> distribute their own python or python-like interpreters.  I believe
> there are already a couple of non-english versions aimed at schoolkids.
> The cpython core developer group has nothing to do with such.

I don't know who their target audiences are, but there's a German and Chinese
version of Python.

http://www.fiber-space.de/EasyExtend/doc/teuton/teuton.htm

http://www.chinesepython.org/english/english.html

My *guess* is that Teuton is intended as a proof-of-concept just to show it
can be done, and ChinesePython is intended for students.




-- 
Steve
“Cheer up,” they said, “things could be worse.” So I cheered up, and sure
enough, things got worse.

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[issue32259] Misleading "not iterable" Error Message when generator return a "simple" type, and a tuple is expected

[Steven D'Aprano]

Steven D'Aprano  added the comment:

I agree with Camion that the error message is misleading, and not just for 
beginners. It threw me for a loop too, when I first read it.

Serhiy is right, the exception type cannot and should not be changed, but we 
can change the error message. I'm re-opening the ticket as an enhancement to 
improve the message.

Here's my suggestion:

TypeError: cannot unpack object ('Fraction' is not iterable)

There is no stability guarantees on error messages, so we can include it in 3.6 
(and possibly older if desired).

By the way Camion, as interesting as your program to calculate the digits of pi 
is, in general it is better to cut the code down to the simplest version that 
demonstrates the problem. Something like this would demonstrate it equally as 
well:

def gen():
yield 1

for x, y in gen():
pass

--
nosy: +steven.daprano
resolution: not a bug -> 
stage: resolved -> needs patch
status: closed -> open
type: behavior -> enhancement
versions: +Python 3.7

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[issue27505] Missing documentation for setting module __class__ attribute

[Nick Coghlan]

Nick Coghlan  added the comment:

This is still a valid docs issue, although PEP 562's module __getattr__ and 
__dir__ will provide a simpler alternative for most of the cases that 
previously required setting the __class__ attribute: 
https://www.python.org/dev/peps/pep-0562/

So I've added https://bugs.python.org/issue32225 as a dependency for this 
issue, as it will likely make sense to figure out a good docs structure for 
those changes first, and then see if there's any work left to do specifically 
for this issue: https://bugs.python.org/issue32225#msg307935

Issue #24991 is a fairly different topic - I've added an extra comment there 
that should help clarify the actual question/proposal.

--
dependencies: +Implement PEP 562: module __getattr__ and __dir__

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[issue32225] Implement PEP 562: module __getattr__ and __dir__

[Nick Coghlan]

New submission from Nick Coghlan :

For documentation of this feature, I'd suggest adding a new subsection after 
https://docs.python.org/3/reference/datamodel.html#customizing-attribute-access 
(but at the same level), called "Customizing module attribute access".

That can then cover defining __getattr__ and __dir__ as module level functions, 
and also mention setting __class__ (which would be enough to close issue 27505 
as well).

The new section should explicitly mention that these only affect lookups and 
modifications made using the attribute access syntax - directly accessing the 
module globals (whether by code within the module, or via a reference to the 
module's globals dict) is unaffected.

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[issue32225] Implement PEP 562: module __getattr__ and __dir__

[Nick Coghlan]

Change by Nick Coghlan :


--
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[issue24991] Define instance mutability explicitly on type objects?

[Nick Coghlan]

Nick Coghlan  added the comment:

I updated some of the issue metadata and added a question mark to the issue 
title to help make it clearer that this would require a PEP level conceptual 
enhancement to the language, rather than being about documenting an existing 
concept.

PEP 557's data classes take a step in that direction with their "frozen=True" 
parameter: https://www.python.org/dev/peps/pep-0557/#frozen-instances

--
components: +Interpreter Core
title: Define instance mutability explicitly on type objects -> Define instance 
mutability explicitly on type objects?
type:  -> enhancement
versions: +Python 3.8 -Python 3.6

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[issue31506] Improve the error message logic for object_new & object_init

[Nick Coghlan]

Nick Coghlan  added the comment:

Thanks for the feedback and updates folks! If we decide to make any further 
changes, I think they will be best handled as a new issue :)

--
resolution:  -> fixed
stage: patch review -> resolved
status: open -> closed

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[issue31506] Improve the error message logic for object_new & object_init

[Nick Coghlan]

Nick Coghlan  added the comment:


New changeset 780acc89bccf332d334a27887684cc942eb6 by Nick Coghlan (Sanyam 
Khurana) in branch 'master':
bpo-31506: Improve the error message logic for class instantiation (GH-4740)
https://github.com/python/cpython/commit/780acc89bccf332d334a27887684cc942eb6


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[issue30928] Copy modified blurbs to idlelib/NEWS.txt

[Terry J. Reedy]

Change by Terry J. Reedy :


--
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[issue32257] Support Disabling Renegotiation for SSLContext

[Nathaniel Smith]

Nathaniel Smith  added the comment:

Another reason to consider making it possible to disable renegotiation is 
HTTP/2. RFC 7540 says:

   A deployment of HTTP/2 over TLS 1.2 MUST disable renegotiation.  An
   endpoint MUST treat a TLS renegotiation as a connection error
   (Section 5.4.1) of type PROTOCOL_ERROR.

https://tools.ietf.org/html/rfc7540#section-9.2.1

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[issue27505] Missing documentation for setting module __class__ attribute

[Cheryl Sabella]

Cheryl Sabella  added the comment:

Hi Nick,

I started looking at this issue for documenting #22986 and then found #24912 
and #24991.  Has anything changed in the code since 2015 that would make these 
issues (this one and 24991) obsolete?  It seems there were a lot of ideas 
flying around, but I couldn't find other tickets (and the code is still in 
place for 22986 and 24912).  If these haven't been superseded, do you think the 
discussion on #24991 should be continued or should the documentation mentioned 
in this issue still be done?

Thanks!

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[issue32262] Fix linting errors in asyncio code; use f-strings consistently

[Serhiy Storchaka]

New submission from Serhiy Storchaka :

Usually we don't do such kind of changes. This spoils the output of `git 
annotate` and `git blame` and makes harder researching the history.

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[issue32265] Correctly classify builtin static and class methods

[Serhiy Storchaka]

Change by Serhiy Storchaka :


--
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pull_requests: +4677
stage:  -> patch review

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[issue32265] Correctly classify builtin static and class methods

[Serhiy Storchaka]

New submission from Serhiy Storchaka :

Currently class and some static methods of builtin types are classified as 
plain methods. The proposed patch adds types.ClassMethodDescriptorType for 
unbound class methods of builtin types and makes inspect.classify_class_attrs() 
correctly classifying static and class methods of builtin types. This results 
in changing the help() output.

All __new__ methods now are classified as static.

Examples of class methods are dict.fromkeys and int.from_bytes.

--
components: Library (Lib)
messages: 307928
nosy: serhiy.storchaka, yselivanov
priority: normal
severity: normal
status: open
title: Correctly classify builtin static and class methods
type: enhancement
versions: Python 3.7

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[issue20285] Improve object.__doc__ and help(object) output

[Terry J. Reedy]

Terry J. Reedy  added the comment:

How about "The starting base class of all types and classes other than itself." 
(Object.__bases__ = ().)

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Re: Benefits of unicode identifiers (was: Allow additional separator in identifiers)

[Terry Reedy]

On 12/9/2017 5:57 AM, Gilmeh Serda wrote:


And next demands to allow Unicode as keywords in a translated version of
Python


Python's liberal open source license allows people to revise and 
distribute their own python or python-like interpreters.  I believe 
there are already a couple of non-english versions aimed at schoolkids. 
The cpython core developer group has nothing to do with such.


--
Terry Jan Reedy

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Re: Please tell me how to execute python file in Ubuntu by double click

[Chris Angelico]

On Sun, Dec 10, 2017 at 12:58 AM, Marko Rauhamaa  wrote:
> alister :
>
>> On Wed, 06 Dec 2017 10:35:58 +1200, Steve D'Aprano wrote:
>>> Then how does my Linux box know that when I double-click on a text
>>> file, it launches kwrite rather than (say) the Gimp or LibreOffice?
>>>
>>> When I right-click on a mp4 video, I get a menu that includes a Open
>>> With command that shows (amount others) Kaffeine, mplayer and VLC.
>>>
>>> If you mean the Linux *kernel* doesn't do file associations, then you
>>> should have said so.
>>>
>>> But why do you care about the kernel? Would you think it even the
>>> *tiniest* useful to claim that "Linux doesn't do email" because it is
>>> sendmail or postfix (or similar) that sends email rather than the
>>> Linux kernel itself?
>>
>> Linux does not associate by file extn it uses a 'magic' file to
>> analyse the content of the file so that it runs the correct
>> application regardless of the file extn.
>
> "Linux" is one of those words that has ceased to have much meaning.
> Personally, I wouldn't think "double-clicking on a text file" has
> anything to do with linux. I use linux during most of my waking hours
> but I don't remember ever "double-clicking on a text file".

And there are plenty of people who use Python all their waking hours,
but never once write a generator function. Systems like this are large
enough that different people get to use different subsets of the
functionality. There's a HUGE difference between "using Linux for
headless servers" and "using Linux for software development" and
"using Linux for video editing" in terms of which features you'll use.
I, for instance, couldn't *imagine* using Linux without SSH, but my
mother uses Linux too and has never SSH'd to a different computer for
any reason. On the other hand, she makes extensive use of Libre
Office, which I only have installed for those rare occasions when
someone sends me a spreadsheet file or something. But we're both using
Linux, and that's perfectly acceptable use of terminology.

ChrisA
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[issue32245] OSError: raw write() returned invalid length on latest Win 10 Consoles

[Eryk Sun]

Eryk Sun  added the comment:

We need a test that reproduces this problem on a vanilla installation of Python 
3.5. Include the system locale context as well, i.e. the ANSI codepage, OEM 
codepage, and active console output codepage. A reliable test will help 
determine whether this problem also affects legacy console I/O in Python 3.6. 
However, even if the problem affects 3.6, that doesn't mean there's anything we 
can reasonably do about it if the fault is the console host process (i.e. 
conhost.exe, running either ConhostV1.dll or the new ConhostV2.dll 
implementation). 

A possible workaround in Python 3.5 would be to install and enable the 
win_unicode_console package. This package uses the console's native Unicode API 
instead of the legacy codepage API.

--
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[issue32264] move pygetopt.h into internal/

[Benjamin Peterson]

New submission from Benjamin Peterson :

This header has no public functions. It shouldn't be distributed.

--
components: Interpreter Core
messages: 307925
nosy: benjamin.peterson
priority: normal
severity: normal
status: open
title: move pygetopt.h into internal/
type: enhancement
versions: Python 3.7

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[issue32260] siphash shouldn't byte swap the keys

[Benjamin Peterson]

Change by Benjamin Peterson :


--
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status: open -> closed

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[issue30140] Binary arithmetic does not always call subclasses first

[Cheryl Sabella]

Change by Cheryl Sabella :


--
components: +Interpreter Core
keywords: +needs review, patch
stage:  -> patch review
versions: +Python 3.7

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[issue32257] Support Disabling Renegotiation for SSLContext

[Qichao Chu]

Qichao Chu  added the comment:

I don't think it is a bug in OpenSSL. For various reasons, certain applications 
must allow renegotiation while this leaves security problem for others. That's 
why if python can control this flag, applications will be more confident in 
dealing with DoS attacks aimed at renegotiation.

This flag controls not only SSL3 but also TLSv1.1 and TLSv1.2 after testing on 
Nginx and Gevent. 

As of OpenSSL 1.0.2h, in file ssl/s3_lib.c

int ssl3_renegotiate(SSL *s)
{
if (s->handshake_func == NULL)
return (1);

if (s->s3->flags & SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS)
return (0);

s->s3->renegotiate = 1;
return (1);
}

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[issue32263] Template string docs refer to "normal %-based substitutions"

[Barry A. Warsaw]

Change by Barry A. Warsaw :


--
nosy: +barry

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[issue30737] Update devguide link to the new URL

[Julien Palard]

Julien Palard  added the comment:

Just created http://psf.upfronthosting.co.za/roundup/meta/issue646 to track the 
"CORE DEVELOPMENT" link of b.p.o.

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[issue32262] Fix linting errors in asyncio code; use f-strings consistently

[Yury Selivanov]

Change by Yury Selivanov :


--
keywords: +patch
pull_requests: +4676
stage:  -> patch review

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[issue32263] Template string docs refer to "normal %-based substitutions"

[Glenn Linderman]

New submission from Glenn Linderman :

At least as far back as Python 3.1, the description for Template strings 
(section 6.1.5 in version 3.6.4rc1 docs) starts by differentiating what 
Template strings do, as:

Instead of the normal %-based substitutions, Templates support $-based 
substitutions, using the following rules:

Since this immediately follows a section describing the "Custom String 
Formatting" and the "Format Specification Mini-Language", which does a type of 
substitutions that is {} based, rather than % based, it is hard to grasp 
exactly why %-based substitutions would be considered "normal". Of course, I 
know why, due to the % operator, but for someone just reading through chapter 
6, it is a reference that raises the mental question "Huh? What is normal 
%-based substitution? Are Templates abnormal, if %-based substitutions are 
normal? What did I miss? The previous section was about {}-based substitutions? 
Are they abnormal, too? What are normal %-based substitutions, anyway?" rather 
than helping to describe what Templates are and do.

--
assignee: docs@python
components: Documentation
messages: 307922
nosy: docs@python, v+python
priority: normal
severity: normal
status: open
title: Template string docs refer to "normal %-based substitutions"
versions: Python 3.4, Python 3.5, Python 3.6, Python 3.7, Python 3.8

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[issue32262] Fix linting errors in asyncio code; use f-strings consistently

[Yury Selivanov]

Change by Yury Selivanov :


--
components: asyncio
nosy: yselivanov
priority: normal
severity: normal
status: open
title: Fix linting errors in asyncio code; use f-strings consistently
versions: Python 3.7

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[issue32262] Fix linting errors in asyncio code; use f-strings consistently

[Yury Selivanov]

Change by Yury Selivanov :


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[issue30737] Update devguide link to the new URL

[Julien Palard]

Julien Palard  added the comment:

I opened a PR on psf-salt to fix HTTP redirections 
https://github.com/python/psf-salt/pull/123

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[issue32245] OSError: raw write() returned invalid length on latest Win 10 Consoles

[Larry Hastings]

Larry Hastings  added the comment:

To confirm what Steve said: we no longer accept bug fixes for Python 3.5 (or 
3.4).  We only accept security fixes for 3.5 (and 3.4).

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[issue30737] Update devguide link to the new URL

[Julien Palard]

Julien Palard  added the comment:

Just spotted the "CORE DEVELOPMENT" link in the bugs.python.org points to the 
old one too.

Redirections should be placed on https://docs.python.org/devguide/ to the new 
one too.

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[issue32245] OSError: raw write() returned invalid length on latest Win 10 Consoles

[Steve Dower]

Steve Dower  added the comment:

Does this only affect Python 3.5? We're highly unlikely to take a fix for that 
version.

This code was rewritten for 3.6, so it wouldn't surprise me if there is no 
longer an issue.

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[issue31392] Upgrade installers to OpenSSL 1.1.0g and 1.0.2n

[Ned Deily]

Ned Deily  added the comment:

And now 1.0.2n is out. I'm not sure how vulnerable Python is to the main 
problem fixed (see https://www.openssl.org/news/secadv/20171207.txt) which only 
impacts 1.0.2.x but I'd be willing to pull it into 3.6.4 final for the Windows 
and macOS installers.

--
title: Upgrade installers to OpenSSL 1.1.0g and 1.0.2m -> Upgrade installers to 
OpenSSL 1.1.0g and 1.0.2n

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[issue20285] Improve object.__doc__ and help(object) output

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

"Python class" can be read as a user type defined in Python (usually with the 
"class" statement). The term "class" in the glossary is used with this meaning 
in contrary to the term "type" which means also builtin and extension types. In 
Python 3 "object" is a base class of all types, not only user-defined class.

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[issue32260] siphash shouldn't byte swap the keys

[Benjamin Peterson]

Benjamin Peterson  added the comment:


New changeset 60ed1308304964e5648d8bfc9b74bd549570fa83 by Benjamin Peterson in 
branch 'master':
byte swap the raw hash secrets (more bpo-32260) (#4773)
https://github.com/python/cpython/commit/60ed1308304964e5648d8bfc9b74bd549570fa83


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[issue32260] siphash shouldn't byte swap the keys

[Benjamin Peterson]

Change by Benjamin Peterson :


--
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[issue32245] OSError: raw write() returned invalid length on latest Win 10 Consoles

[Eryk Sun]

Change by Eryk Sun :


--
components: +Windows
nosy: +paul.moore, tim.golden, zach.ware
stage:  -> test needed

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[issue20285] Improve object.__doc__ and help(object) output

[Terry J. Reedy]

Terry J. Reedy  added the comment:

After looking at https://en.wiktionary.org/wiki/base I can explain better why 
'most base class' is wrong, and felt wrong to participants in the python-list 
thread.

'Base' is actually two words.  As a noun (or verb), it comes from Ancient Greek 
βάσις (básis), a foundation from which other things extend or derive.  As an 
adjective, it comes from Late Latin bassus (“low”).

In computer science and Python, the couplet 'base class' is being used, it 
seems to me and apparently others, as a noun-noun compound, meaning, 
'foundation class', not as an adjective-noun phrase meaning 'low class' (let 
along 'depraved class').  However, 'most base class' must be parsed as '(most 
base) class', with 'base' re-interpreted as the adjective meaning 'low' (or 
worse).  The switch in meaning of 'base' is similar in 'baseball' versus  'most 
base ball'.

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[issue32260] siphash shouldn't byte swap the keys

[Benjamin Peterson]

Benjamin Peterson  added the comment:


New changeset 4e3e156391e70cd23cae18f2629ec323b3b1e7de by Benjamin Peterson in 
branch 'master':
bpo-32260: don't byte swap siphash keys (#4771)
https://github.com/python/cpython/commit/4e3e156391e70cd23cae18f2629ec323b3b1e7de


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[issue32261] Online doc does not include inspect.classify_class_attrs

[Cheryl Sabella]

New submission from Cheryl Sabella :

Documentation for inspect.classify_class_attrs exists in the docstring and, 
therefore, pydoc, but is not included in the online docs for inspect.

--
assignee: docs@python
components: Documentation
keywords: easy
messages: 307912
nosy: csabella, docs@python
priority: normal
severity: normal
status: open
title: Online doc does not include inspect.classify_class_attrs
type: enhancement
versions: Python 3.7

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[issue32257] Support Disabling Renegotiation for SSLContext

[Christian Heimes]

Christian Heimes  added the comment:

If it's a bug in OpenSSL, please report the bug with OpenSSL and request a fix. 
Bugs should be patched where they occur. Can you contact OpenSSL development 
team, please?

The flag is not documented and I don't know how it influences OpenSSL. Does the 
flag only affect SSL 3.0 or also TLS 1.0 and newer?

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[issue32260] siphash shouldn't byte swap the keys

[Benjamin Peterson]

Change by Benjamin Peterson :


--
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pull_requests: +4674
stage:  -> patch review

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[issue32260] siphash shouldn't byte swap the keys

[Benjamin Peterson]

New submission from Benjamin Peterson :

Reference siphash takes the keys as a bytes, so it makes sense to byte swap 
when reifying the keys as 64-bit integers. However, Python's modified siphash 
takes host integers in to start with.

--
components: Interpreter Core
messages: 307910
nosy: benjamin.peterson
priority: normal
severity: normal
status: open
title: siphash shouldn't byte swap the keys
type: behavior
versions: Python 3.6, Python 3.7, Python 3.8

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[issue31650] implement PEP 552

[Benjamin Peterson]

Benjamin Peterson  added the comment:


New changeset 42aa93b8ff2f7879282b06efc73a31ec7785e602 by Benjamin Peterson in 
branch 'master':
closes bpo-31650: PEP 552 (Deterministic pycs) implementation (#4575)
https://github.com/python/cpython/commit/42aa93b8ff2f7879282b06efc73a31ec7785e602


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[issue31650] implement PEP 552

[Benjamin Peterson]

Benjamin Peterson  added the comment:

On Sat, Dec 9, 2017, at 01:06, Serhiy Storchaka wrote:
> 
> Serhiy Storchaka  added the comment:
> 
> While we are here, can other changes be made?

All these suggestions seem fine, but they're not in the PEP and the
change is already large enough.

gps also points out we should expand the timestamp field to 64 bits for
2038 proofing.

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[issue8722] Documentation for __getattr__

[Terry J. Reedy]

Terry J. Reedy  added the comment:

Thanks.  I normally look at source in my local clone with an editor.  I found 
'view blame' and 'view blame prior' on github.

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[issue32257] Support Disabling Renegotiation for SSLContext

[Qichao Chu]

Qichao Chu  added the comment:

Hi Christian,

Thank you for review! I have changed the code to directly setting this flag by 
using s3->flag. Code is copied from nginx repo: 
https://github.com/nginx/nginx/blob/ed0cc4d52308b75ab217724392994e6828af4fda/src/event/ngx_event_openssl.c.

I think this change is still needed. Although OpenSSL claimed it is fixed, 
THC-SSL-DOS showed it is vulnerable. If this is not the case, then nginx won't 
need to set the flag.

Thanks,
Qichao

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[issue32253] Deprecate old-style locking in asyncio/locks.py

[Andrew Svetlov]

Change by Andrew Svetlov :


--
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stage: patch review -> resolved
status: open -> closed

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[issue32253] Deprecate old-style locking in asyncio/locks.py

[Andrew Svetlov]

Andrew Svetlov  added the comment:


New changeset 28d8d14013ade0657fed4673f5fa3c08eb2b1944 by Andrew Svetlov in 
branch 'master':
bpo-32253: Deprecate with statement and bare await for asyncio locks (GH-4764)
https://github.com/python/cpython/commit/28d8d14013ade0657fed4673f5fa3c08eb2b1944


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Re: Save and load initialized class

[MRAB]

On 2017-12-08 18:36, Bob van der Poel wrote:

I'm trying to something simple (yeah, right). Mainly I want to have a bunch
of variables which my program needs and uses to be in a saveable/loadable
block. Currently I have then all as a bunch of globals which works, but
trying to keep track of them and the correct spellings, etc becomes a bit
of maintenance nightmare. So, demonstrating all my cleverness I came up
with:

class Opts():
  var1 = 123
  var2 = "hello world"

Notationally, it looks much like the variables are stored in a separate
module. I can call these options from within a function with the simple
notation:

   if Opts.var1 == 99 ...

And, if I need to change a value I can:

  global
  Opts.var1 = 0

Further, and importantly, I can save the lot with:

   json.dump(Opts.__dict__, open("mybuffer", "w"))

But, I can't figure out how to load the saved data back into my program.
Doing

   z=json.load (open("mybuffer", "r"))

loads a dictionary ... which makes sense since that is what I saved. So,
can I now reset the values in Opts from a saved dictionary?


Try updating __dict__:

Opts.__dict__.update(json.load(open("mybuffer")))
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[issue32259] Misleading "not iterable" Error Message when generator return a "simple" type, and a tuple is expected

[Camion]

Camion  added the comment:

I'm not talking about changing the type of the exception, Serhiy. but only to 
make the text message more explicit by adding a lead to a secondary possible 
cause. I do not understand how this addition would be misleading - more than 
the case I presented ? (Did you check my example ?)

I agree that this message might possibly make my mistake obvious to an senior 
_python_ programmer, but doesn't the constraint of being _experienced in 
python_, not go in contradiction with the mantra "Explicit is better than 
implicit" ?

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[issue32234] Add context management to mailbox.Mailbox

[Yury Selivanov]

Change by Yury Selivanov :


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Re: scipy

[Thomas Jollans]

On 08/12/17 23:57, Larry Martell wrote:
> Trying to install scipy on ubuntu-trusty-64 running Python 2.7.6. 

I STRONGLY recommend moving to Python 3 if you can. The scientific
python ecosystem has had good support for Python 3 for years now. Many
scientific packages, including numpy (the king of scientific
Pythonland), have decided to drop official Python 2 support fairly soon;
numpy will not release any new versions for Python 2 after 2018.

See: http://www.python3statement.org/

Trusty includes Python 3.3. Ubuntu trusty also has scipy packages.
Installing with

sudo apt-get install python3-scipy
# or python-scipy, if you insist in being stuck on Python 2.7

is probably the easiest option. This will, of course, give you an
equally dated version of scipy.

If you want current versions of Python and scientific packages on an old
OS, I recommend you have a look at Anaconda.

> It's failing with:
> 
> $ sudo pip install scipy
> Downloading/unpacking scipy
>   Downloading scipy-1.0.0.tar.gz (15.2MB): 15.2MB downloaded
>   Running setup.py (path:/tmp/pip_build_root/scipy/setup.py) egg_info
> for package scipy
> /usr/lib/python2.7/distutils/dist.py:267: UserWarning: Unknown
> distribution option: 'python_requires'
> 
> Followed by many screens full of errors. Is that just a warning or is
> that the issue? I've installed many other packages without a problem
> on this same system. What is the issue here?
> 

I'm just guessing here, but do you have the latest versions of
distutils, setuptools and pip? It's likely that scipy requires newer
versions of these than your distribution provides. You may have to
upgrade them.

Best of luck,

Thomas

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[issue32234] Add context management to mailbox.Mailbox

[sblondon]

Change by sblondon :


--
keywords: +patch
pull_requests: +4673
stage:  -> patch review

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[issue32253] Deprecate old-style locking in asyncio/locks.py

[Yury Selivanov]

Yury Selivanov  added the comment:

> This can make harder writing portable code that works in 2.7, 3.4 and 3.7.

asyncio for Python 3.4 is fairly outdated.  Most of the async packages today 
require 3.5+, as they usually use async/await syntax.  I say this sort of 
backwards compatibility (showing a warning) isn't really a big concern.  A 
bigger concern for us is new code using 'with await lock' pattern, hence the 
warning.

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[issue26865] Meta-issue: support of the android platform

[Xavier de Gaye]

Xavier de Gaye  added the comment:

issue 22724 is fixed for Android.

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dependencies:  -byte-compile fails for cross-builds

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[issue26865] Meta-issue: support of the android platform

[Xavier de Gaye]

Change by Xavier de Gaye :


--
dependencies: +Add platform.android_ver()  to test.pythoninfo for Android 
platforms, Do not use the canonical path in pydoc 
test_mixed_case_module_names_are_lower_cased, [asyncio] test failure when the 
platform lacks a functional  sem_open(), [ctypes] all long double tests fail on 
android-24-x86_64, [ctypes] test_struct_by_value fails on android-24-arm64, 
android: locale is modified by test_strftime, android: test_faulthandler fails 
also on API 24, detect_modules() in setup.py must also search the sysroot 
paths, test.pythoninfo does not print the cross-built sysconfig data, 
test_regrtest alters the execution environment on Android, uuid.getnode() 
should return the MAC address on Android

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[issue26865] Meta-issue: support of the android platform

[Xavier de Gaye]

Xavier de Gaye  added the comment:

issue #32031: Do not use the canonical path in pydoc 
test_mixed_case_module_names_are_lower_cased
issue #32059: detect_modules() in setup.py must also search the sysroot paths
issue #32126: [asyncio] test failure when the platform lacks a functional 
sem_open()
issue #32138: android: test_faulthandler fails also on API 24
issue #32139: android: locale is modified by test_strftime
issue #32205: test.pythoninfo prints the native sysconfig data when 
cross-compiling
issue #32199: uuid.getnode() now returns the MAC address on Android
issue #32246: test_regrtest alters the execution environment on Android
issue #32210: Add platform.android_ver() to test.pythoninfo for Android 
platforms
issue #32202: [ctypes] all long double tests fail on android-24-x86_64
issue #32203: [ctypes] test_struct_by_value fails on android-24-arm64

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[issue32255] csv.writer converts None to '""\n' when it is first line, otherwise '\n'

[Licht Takeuchi]

Change by Licht Takeuchi :


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pull_requests: +4672
stage:  -> patch review

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[issue32259] Misleading "not iterable" Error Message when generator return a "simple" type, and a tuple is expected

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

I concur with Eric. The current exception is correct and allows to identify 
your mistake. Changing the type of the exception will break an existing code, 
and the message proposed by you is misleading.

--
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status: open -> closed

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[issue32259] Misleading "not iterable" Error Message when generator return a "simple" type, and a tuple is expected

[Camion]

Camion  added the comment:

Ok, but the other explanation is valid as well. That's why I suggest to modify 
the error message like this : 


TypeError: '[TYPE]' object is not iterable
- OR -
ValueError: not enough values to unpack (expected [N], got 1)

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Re: Please tell me how to execute python file in Ubuntu by double click

[Marko Rauhamaa]

alister :

> On Wed, 06 Dec 2017 10:35:58 +1200, Steve D'Aprano wrote:
>> Then how does my Linux box know that when I double-click on a text
>> file, it launches kwrite rather than (say) the Gimp or LibreOffice?
>> 
>> When I right-click on a mp4 video, I get a menu that includes a Open
>> With command that shows (amount others) Kaffeine, mplayer and VLC.
>>
>> If you mean the Linux *kernel* doesn't do file associations, then you
>> should have said so.
>> 
>> But why do you care about the kernel? Would you think it even the
>> *tiniest* useful to claim that "Linux doesn't do email" because it is
>> sendmail or postfix (or similar) that sends email rather than the
>> Linux kernel itself?
>
> Linux does not associate by file extn it uses a 'magic' file to
> analyse the content of the file so that it runs the correct
> application regardless of the file extn.

"Linux" is one of those words that has ceased to have much meaning.
Personally, I wouldn't think "double-clicking on a text file" has
anything to do with linux. I use linux during most of my waking hours
but I don't remember ever "double-clicking on a text file".

BTW, with the triumph of systemd, I would say linux is falling ever more
to the background. I am thinking more and more that "Linux" is a bad
generic name for the modern distros. Instead, we should talk about
"systemd" as the overall name of the OS. Linux really is a relatively
minor component in the mind of the user or the application developer.
For example, Linux doesn't dictate how one should develop a system
service; systemd calls the shots.


Marko
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[issue2636] Adding a new regex module (compatible with re)

[petros]

Change by petros :


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[issue20285] Improve object.__doc__ and help(object) output

[Cheryl Sabella]

Cheryl Sabella  added the comment:

Hi Terry,

I've submitted a PR for this.  Thanks!

--
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[issue32212] few discrepancy between source and docs in logging

[Vinay Sajip]

Change by Vinay Sajip :


--
resolution: not a bug -> fixed
stage: patch review -> resolved
status: open -> closed
type:  -> enhancement

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[issue32212] few discrepancy between source and docs in logging

[Vinay Sajip]

Vinay Sajip  added the comment:


New changeset 292fce9934280867ca9a65870495f83fca37751e by Vinay Sajip in branch 
'2.7':
bpo-32212: Updated logging documentation to make parameter names more 
consistent with source. (GH-4765) (GH-4768)
https://github.com/python/cpython/commit/292fce9934280867ca9a65870495f83fca37751e


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[issue32259] Misleading "not iterable" Error Message when generator return a "simple" type, and a tuple is expected

[Eric V. Smith]

Eric V. Smith  added the comment:

The error message is correct, but I'm sorry it's confusing.

Here's an equivalent error:

a, b = 3

You'll get the error "TypeError: 'int' object is not iterable". That's because 
Python sees 2 items to the left of the assignment, so it needs to extract 2 
items from the right side. To get 2 values from the right side, it iterates 
over the right side. In this case, 3 cannot be iterated over, thus the error 
message.

Now consider:

a, b = 3, 4

Again, to get 2 items from the right side, Python iterates over it. In this 
case the thing on the right side is a 2 element tuple. It's a little confusing 
that it's a tuple because it doesn't have parentheses, but the comma between 3 
and 4 makes it a tuple. In this case, Python can iterate over the tuple, and 
the tuple has exactly 2 elements, so the assignment to a and b succeeds with a 
= 3 and b = 4.

I hope that clears it up.

--
nosy: +eric.smith
resolution:  -> not a bug
stage:  -> resolved
status: open -> closed

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[issue32212] few discrepancy between source and docs in logging

[Vinay Sajip]

Vinay Sajip  added the comment:


New changeset 63868181a904c844d8d01e3badfdd5b134acc5fa by Vinay Sajip in branch 
'3.6':
bpo-32212: Updated logging documentation to make parameter names more 
consistent with source. (GH-4765) (GH-4767)
https://github.com/python/cpython/commit/63868181a904c844d8d01e3badfdd5b134acc5fa


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[issue32212] few discrepancy between source and docs in logging

[Vinay Sajip]

Change by Vinay Sajip :


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pull_requests: +4671

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[issue8722] Documentation for __getattr__

[Cheryl Sabella]

Cheryl Sabella  added the comment:

>> Is there a way to get an annotated listing from git (given which patch, and 
>> therefore which person, is responsible for each line)?

Which source did you want to look at?  In github, if you go into any source, 
you can click on a line and it gives an option for 'git blame'.  That shows the 
last commit change for each line.  You can then click an icon to see a previous 
commit, etc.  For the .rst sources, it's a little different and there is a 
Blame button at the top of the source that will bring up the same view (commit 
annotations to the left of the source) as right-clicking.

I had posted about git blame a few months ago on core mentorship and Carol 
Willing mentioned another tool to get all the changes by line.  Here was her 
post:

Thanks for passing along the tip for others. You may also find the npm package 
`git-guilt` useful as it will display all the contributors to a particular 
line's history. https://www.npmjs.com/package/git-guilt 


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[issue32257] Support Disabling Renegotiation for SSLContext

[Christian Heimes]

Christian Heimes  added the comment:

I don't think your PR is required. The issue has been addressed in OpenSSL 
0.9.8m over 7 years ago, https://access.redhat.com/security/cve/cve-2009-3555.


>From https://www.openssl.org/docs/manmaster/man3/SSL_CTX_set_options.html

> OpenSSL always attempts to use secure renegotiation as described in RFC5746. 
> This counters the prefix attack described in CVE-2009-3555 and elsewhere.


OpenSSL changelog

Changes between 0.9.8l and 0.9.8m [25 Feb 2010]


  *) Implement RFC5746. Re-enable renegotiation but require the extension
 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
 turns out to be a bad idea. It has been replaced by
 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
 SSL_CTX_set_options(). This is really not recommended unless you
 know what you are doing.
 [Eric Rescorla , Ben Laurie, Steve Henson]

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[issue32259] Misleading "not iterable" Error Message when generator return a "simple" type, and a tuple is expected

[Camion]

New submission from Camion :

I'm new with Python and I've been blocked for day on a "TypeError: 'Fraction' 
object is not iterable" error message, while the problem turned out to be 
completely different.

I don't even know to what programming case this message would have been the 
right interpretation, but in this situation, it was completely wrong and I 
believe it can cause much loss of time for inexperienced python programmer (at 
least, I believe it should document alternative causes)

Here is a sample code to show how misleading it can be (It's a program to 
compute pi with fractions)

from fractions import Fraction


def order(x):
r, old_r, n, old_n = 2, 1, 1, 0
while (x>=r):
r, old_r, n, old_n = r*r, r, 2*n, n
return order(x >> old_n) + old_n if old_n > 0 else 0


def terms(m, n, i):
return Fraction(4 * m, n**(2*i+1) * (2*i+1))


def terms_generator(exp_prec):
ws = [ [terms(parm[1], parm[2], 0), 0] + list(parm)
  for parm in ((1, 44, 57),
   (1, 7, 239),
   (-1, 12, 682),
   (1, 24, 12943))]
digits = 0
while digits

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[issue32212] few discrepancy between source and docs in logging

[Vinay Sajip]

Change by Vinay Sajip :


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pull_requests: +4670

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[issue32257] Support Disabling Renegotiation for SSLContext

[Christian Heimes]

Christian Heimes  added the comment:

Thanks for your patch, a few comments

We generally don't have special functions to set flags. 
SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS is an OpenSSL < 1.1.0 option. OpenSSL 1.1.0 
still defines the flag but no longer uses it. With your patch, the Python 
function would fail with a NameError.

I don't think that self.options is the right way to set that flag. The option 
attribute manipulates SSL_CTX->options, which affects SSL->options. The flag 
has to be set on SSL->s3->flags.

Your patch is missing documentation update and tests.

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Re: Please tell me how to execute python file in Ubuntu by double click

[alister via Python-list]

On Wed, 06 Dec 2017 10:35:58 +1200, Steve D'Aprano wrote:

> On Tue, 5 Dec 2017 07:58 pm, Lawrence Dâ ÖOliveiro wrote:
> 
>> On Tuesday, December 5, 2017 at 3:39:26 AM UTC+13, Rick Johnson wrote:
>>>
>>> Sounds like your OS file associations are all botched-up ...
>>
>> Linux doesnâ Öt do â £OS file associationsâ Ø.
> 
> 
> Then how does my Linux box know that when I double-click on a text file,
> it launches kwrite rather than (say) the Gimp or LibreOffice?
> 
> When I right-click on a mp4 video, I get a menu that includes a Open
> With command that shows (amount others) Kaffeine, mplayer and VLC.
> 
> If you mean the Linux *kernel* doesn't do file associations, then you
> should have said so.
> 
> But why do you care about the kernel? Would you think it even the
> *tiniest* useful to claim that "Linux doesn't do email" because it is
> sendmail or postfix
>  (or similar) that sends email rather than the Linux kernel itself?

Linux does not associate by file extn it uses a 'magic' file to analyse 
the content of the file so that it runs the correct application 
regardless of the file extn.

to get a python program to run it simply needs the correct "Shebang" ass 
the 1st line

Usually 

#!/usr/bin/env python
 
or similar




-- 
Some say the world will end in fire,
Some say in ice.
From what I've tasted of desire
I hold with those who favor fire.
But if it had to perish twice,
I think I know enough of hate
To say that for destruction, ice
Is also great
And would suffice.
-- Robert Frost, "Fire and Ice"
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[issue32212] few discrepancy between source and docs in logging

[Vinay Sajip]

Vinay Sajip  added the comment:


New changeset a9f8df646aac7fc94ced0aefd1ed2c8566d14d10 by Vinay Sajip in branch 
'master':
bpo-32212: Updated logging documentation to make parameter names more 
consistent with source. (GH-4765)
https://github.com/python/cpython/commit/a9f8df646aac7fc94ced0aefd1ed2c8566d14d10


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[issue32250] Add loop.current_task() and loop.all_tasks() methods

[Andrew Svetlov]

Change by Andrew Svetlov :


--
keywords: +patch
pull_requests: +4669
stage:  -> patch review

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[issue32212] few discrepancy between source and docs in logging

[Vinay Sajip]

Change by Vinay Sajip :


--
keywords: +patch
pull_requests: +4668
stage: needs patch -> patch review

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[issue32258] Rewrite asyncio docs to use async/await syntax

[Serhiy Storchaka]

Change by Serhiy Storchaka :


--
title: Rewrite ayncio docs to use async/await syntax -> Rewrite asyncio docs to 
use async/await syntax

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