[issue35214] Get the test suite passing with clang Memory Sanitizer enabled

[Gregory P. Smith]

Change by Gregory P. Smith :


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pull_requests: +9746

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[issue35214] Get the test suite passing with clang Memory Sanitizer enabled

[Gregory P. Smith]

New submission from Gregory P. Smith :

clang's memory sanitizer (-fsanitize=memory) turns up useful problems in code.  
I'm working on getting a CPython buildbot running it setup but would like our 
build to be cleaner to start with before I run that.

These are the initial fixes required for most of CPython to pass in an msan 
build.  We've been using these with our interpreters at Google.  (PR coming)

--
assignee: gregory.p.smith
components: Build, Extension Modules, Interpreter Core, Tests
messages: 329723
nosy: gregory.p.smith, twouters
priority: normal
severity: normal
stage: patch review
status: open
title: Get the test suite passing with clang Memory Sanitizer enabled
type: security
versions: Python 3.6, Python 3.7, Python 3.8

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[issue35198] Build issue while compiling cpp files in AIX

[Ayappan]

Ayappan  added the comment:

The PR 10437 worked !!!. 
Now i am able to compile pandas-0.23.4


Michael Felt,

About the re-declaration issues you are facing, that is because of the "#define 
_LARGE_FILES 1" in pyconfig-ppc64.h file.
For 64bit build we actually don't need it.
For 32bit build, we need it and also we have to pass the flag "-D_LARGE_FILES" 
through the _sysconfigdata_m_aix6_.py , otherwise one will get this 
re-declaration error.

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[issue31541] Mock called_with does not ensure self/cls argument is used

[Karthikeyan Singaravelan]

Karthikeyan Singaravelan  added the comment:

mock can only verify if the function is called with the correct number of 
arguments as you have passed spec. It doesn't verify whether the function 
implementation is correct like calling Something.foobar() because it's not 
designed to verify the function implementation. It wouldn't raise an exception 
even when self.foo(1, 2) is called inside x.bar because runtime code is not 
executed and only the signature is checked with mock. I think this is an 
expected behavior and not a bug.

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[issue21603] IDLE: Document SaveAs extension display on Mac

[Tal Einat]

Tal Einat  added the comment:

+1 for closing this either way, preferably with a note in the docs.

I'd add the notes about extensions in one set of parenthesis at the end, but 
that's likely just a matter of taste.

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[issue33196] SEGV in mp.synchronize.Lock.__repr__ in spawn'ed proc if ctx mismatched

[Tal Einat]

Tal Einat  added the comment:

On Win10 I've also failed to reproduce the reported issue with the supplied 
script.  I tried with Python versions 3.6.3, 3.7.0, and a recent build of the 
master branch (to be 3.8).

Can someone try to reproduce this on Fedora?

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[issue35151] Python 2 xml.etree.ElementTree documentation tutorial uses undocumented arguments

[Karthikeyan Singaravelan]

Change by Karthikeyan Singaravelan :


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[issue35196] IDLE text squeezer is too aggressive and is slow

[Tal Einat]

Tal Einat  added the comment:

> By the way, I really appreciate the work you all are putting into IDLE.  It 
> can definitely benefit from some love and attention.

Thanks for the kind words, Raymond!

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[issue34864] In Idle, Mac tabs make editor status line disappear.

[Terry J. Reedy]

Terry J. Reedy  added the comment:

Changing only master could make backports difficult to impractical.  (Pure 
module name changes would be an exception if gits keep track of them and 
reverses them for a backport.)

If a module is touched, user changes to that module get wiped out when the 
module is replaced.  Aside from that, most of idlelib was declared private and 
'subject to change' to allow refactoring.  The only problem I have heard about 
is that 3.6 broke IDLEX (as I expected).  IDLEX which made changes far beyond 
the narrow extension protocol.  Roger solved that by incorporating a private 
copy of 3.5 IDLE with whatever modifications he wants.  This is exactly what 
Nick said people should do, in the 3.6 alpha discussion, if they wanted frozen 
IDLE.

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[issue20198] xml.etree.ElementTree.ElementTree.write attribute sorting

[Karthikeyan Singaravelan]

Karthikeyan Singaravelan  added the comment:

dictionary's insertion order is preserved in 3.6 and above. Hence sorting by 
lexical order was removed in issue34160 and there is a discussion in the same 
issue to add an option to provide sorted output.

As part of triaging I propose closing this issue since the changes were made in 
issue34160.

$ ./python.exe
Python 3.8.0a0 (heads/master:cd449806fa, Nov 12 2018, 09:51:24)
[Clang 7.0.2 (clang-700.1.81)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> from xml.etree.ElementTree import Element, tostring
>>> from collections import OrderedDict
>>> e = Element("tag", OrderedDict([("a", "a"), ("c", "c"), ("b", "b")]))
>>> tostring(e)
b''
>>> e = Element("tag", dict([("a", "a"), ("c", "c"), ("b", "b")]))
>>> tostring(e)
b''

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[issue35213] IDLE: use 'macOS' where appropriate.

[Terry J. Reedy]

Change by Terry J. Reedy :


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[issue35213] IDLE: use 'macOS' where appropriate.

[Terry J. Reedy]

Terry J. Reedy  added the comment:

This issue is a spinoff of #34864.

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[issue34864] In Idle, Mac tabs make editor status line disappear.

[Terry J. Reedy]

Terry J. Reedy  added the comment:

See #35213 for 'macOS' changes.

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[issue35213] IDLE: use 'macOS' where appropriate.

[Terry J. Reedy]

New submission from Terry J. Reedy :

'maxOS' is Apple's current name for the Mac operating system.  See 
https://en.wikipedia.org/wiki/MacOS, Contents, Release History.

The module name macosx.py is currently left as is.  Within that, 'Mac OS X' is 
correct for 10.6 for 10.8.

--
assignee: terry.reedy
components: IDLE
messages: 329713
nosy: terry.reedy
priority: normal
severity: normal
stage: needs patch
status: open
title: IDLE: use 'macOS' where appropriate.
type: enhancement
versions: Python 3.6, Python 3.7, Python 3.8

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[issue34864] In Idle, Mac tabs make editor status line disappear.

[Ned Deily]

Ned Deily  added the comment:

By default, macOS installers just install the files included in a package.  For 
macOS Python installer packages, the problem arises if a particular file is 
deleted or renamed in a maintenance release and a user has already installed an 
earlier version of that release family.  It's possible for a post-install 
script to be added to the macOS installer to deal with particular files but 
that doesn't happen automatically.  On Linux and other OSes, it would depend 
how the third-party distributor's packaging system works; some would detect a 
changed or missing file name, some likely wouldn't.  And there's always the 
possibility that third-party packages or users are using or modifying standard 
library files.  It's just best to avoid the problem altogether unless there is 
some really compelling reason.  Of course renames or deletes for the initial 
release of a feature branch (e.g. 3.8.0) generally aren't a problem.

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[issue35209] Crash with tkinter text on osx

[Ned Deily]

Ned Deily  added the comment:

Good to hear you have worked around the crash.  Regarding keyboard 
accelerators, I'm not aware of any 3.7.1 regressions but there could be issues 
with the bundled version of Tk 8.6.8.  If you want to pursue the issue, please 
supply a test case that demonstrates the misbehavior and reopen this issue.

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stage:  -> resolved
status: open -> closed

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[issue34864] In Idle, Mac tabs make editor status line disappear.

[Terry J. Reedy]

Terry J. Reedy  added the comment:

I will leave macosx alone at least until after 3.6.8.  But I plan to merge some 
modules and want to be able to rename others.  #33906 changed windows.py to 
window.py for 3.7.1 (and 3.6.7).  The 3.7.1 Windows installer deleted 
windows.py; the macOS installer did not.  Tal, do you have a Linux 3.7.1 
upgrade of 3.7.0?  What is the downside of the old, dead version?

I could, for the maintenance version, add back a file containing
"# renamed xyz.py" or "# merged into abc.py".  An possible example of the 
latter is merging autocomplete_w.py into autocomplete.py.  (I strongly suspect 
that the split was for a Java-esque one-class per module rule.)  Can modules be 
made system specific without great hassle?

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[issue35211] Turtle Shutdown Problem(s)

[bob moth]

bob moth  added the comment:

Here is a debugged version of mylife, which cloned life2.py to
use a class for turtle-ing. Note the difficulties at the
end of the code -- ontimer(fun, delay) calls for a zero arg
function, so draw() cannot be inside the class. Greatly annoying.
But now we know.

mylife3.py is a suitable example, I think. If cleaned up to
standards. I noticed there is a curses life.py example, which
is very interesting and fun, but mylife3.py is more fun...and
it has 2 different board topologies! And
it would make a very good test program. Note that it sets
the random seed which establishes the Cell patterns, so a
test ought to be repeatable, at least on a given machine.
I plan to use mylife3.py instead of a space heater this winter :)

--
Added file: https://bugs.python.org/file47927/mylife3.py

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[issue35211] Turtle Shutdown Problem(s)

[bob moth]

bob moth  added the comment:

Apparently the draw() function must call itself via ontimer.

That is not in the docs. But 56 variations later...I just copied
Grant Jenks. Apparently he knows what's what.

And done() must be the last line.

If first omitted, only one draw loop executed, but it quits itself.
With done(), it loops via ontimer().


def draw():
myDrawCells()
update()
myComputeOneStep()
ontimer(draw, LOOP_TIMER)
setup(BOARD_SIDE, BOARD_SIDE, None, None)
hideturtle()
tracer(False)
clear()
myInitialize()
draw()
done()


So now alt-Q works in life2DEBUG.py. attached.

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[issue35200] Range repr could be better

[Steven D'Aprano]

Steven D'Aprano  added the comment:

> I've never seen any student try `str(range(10))` in the repl

I never suggested that students would try calling str() directly. That 
would be silly. They would use print(), as I'm sure many of them are 
already doing.

After 20+ years of using Python, I still sometimes use print in the 
interactive interpreter when I don't need to.

> they all naturally try the bare `range(10)` and they're all presented 
> with un-informative information.

It isn't un-informative information. Its very informative, and useful, 
but perhaps not the information you are trying to teach your students 
*at that moment*. But they will have potentially decades of use of 
Python, long after they have learned that range() is half-open, and the 
long  form is no 
longer necessary, and perhaps even an annoyance.

(It certainly annoys *me*. The existing short form is usually better for 
my needs, and I think I'm more representative of the average Python 
coder over their career than beginners during their first few weeks.)

> As for repr(range(0)) == repr(range(2, 2)) == repr(range(1, 5, -1)) I 
> do not consider this a bug

I didn't say it was a bug. But it reduces the utility of the display, as 
you cannot tell the difference between any two empty range objects. And 
that can be important when trying to work out why your range object is 
unexpectedly empty.

> I don't really agree that changing the repr could break code doing 
> `eval(repr(range(10)))`, 

That's not something up for debate. Whether you "really agree" or not, 
it is a fact that your proposed repr is not legal Python code and 
therefore it will break code doing eval() on it.

> is it really something people do?

It is a backwards-incompatible change of behaviour, therefore we must 
assume it will break someone's code and treat it as a major change. 
That's not to say that we can't change the repr, but we don't do it 
lightly.

Personally, making a change for the sake of beginners during their first 
few weeks of learning the language, but inconveniences them for the 
remaining 95% of their career as a Python coder, does not sound like a 
good trade-off to me.

That's why I suggest that print(range_obj) is a good compromise. 
Lots of beginners already do this, and for those who don't, print is a 
good diagnostic tool which they should be taught early.

And yes, changing the __str__ is a backwards-incompatible change too, 
but the potential negative consequences are smaller and the work-arounds 
are easier.

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Re: Good editor for python

[tommy yama]

Komodo edit is enchanting personally,

On Mon, 12 Nov 2018, 06:06 Andrew Z  Brian, thank you for sharing. Looks very interesting.
>
> On Sun, Nov 11, 2018, 10:46 Brian J. Oney via Python-list <
> python-list@python.org wrote:
>
> > Hi Olivier
> >
> > I am glad you did not trigger an editor war. I don't know how familiar
> you
> > are
> > with emacs. The answer depends alot on your preference and future work.
> > Emacs
> > and vi have been around for a long time for good reasons.
> >
> > If you prefer an extensible and futureproof editor, I can wholeheartedly
> > recommend emacs or vi. I went from a happy emacs user to an even happier
> > spacemacs user. Spacemacs is a batteries-included emacs configuration
> which
> > lets you choose between emacs-like or vi keybindings, which are mnemonic,
> > efficient, consistent, and, above all, discoverable. Discoverability
> > allows a
> > person who has been using something for a while to find out even more
> > tricks
> > in the moment that those tricks would be useful. Spacemacs has tons of
> > bells
> > and whistles and still manages to be fast (through lazy configuration
> > loading).
> >
> > If you are looking at literate programming, Jupyter Notebooks are hard to
> > beat, especially if you want to share code with novices. In case you
> want a
> > medusa that eats everything else for lunch, look further. Such a beast
> can
> > be
> > harnessed with org-mode, an emacs mode which can be just about anything
> you
> > want it to be. You can do literate devops, literate programming, mix
> > programming languages, export to your grandma's toaster, and feed the dog
> > with
> > org-mode, if you want to play. Org-mode's syntax and power is unmatched,
> > to my
> > knowledge.
> >
> > That all depends on how far down the rabbit hole you want to dive. Emacs
> > with
> > pdb is pretty good though. To get the functionality you miss is pretty
> > simple
> > with spacemacs.  For more information and platform-specific instructions,
> > please see the following link.
> >
> > https://github.com/syl20bnr/spacemacs
> >
> > The basic template already activates python support.
> >
> > That's my two cents.
> >
> > Cheers
> > Brian
> >
> > On Sun, 2018-11-11 at 08:45 -0600, Spencer Graves wrote:
> > >People rave about Jupyter Notebooks, which reportedly allow you
> > > to mix narrative with code describing what you are doing and why.
> > >
> > >
> > >I primarily program in R, and RMarkdown Documents in RStudio
> > > allow me to mix narrative with R and Python code.  I explain what I'm
> > > doing and why, then write "```{python}" ... "```" to encapsulate a
> > > Python code snippet and "```{r}" ... "```" for an R code snippet. Or I
> > > just use the Idle editor that comes with Python.
> > >
> > >
> > >Someone suggested that Apache Zeppelin  and / or BeakerX might
> be
> > > able to do this also, but I've not tried or verified them.
> > >
> > >
> > >Spencer Graves
> > >
> > >
> > > On 2018-11-11 08:11, Andrew Z wrote:
> > > > If you do scripts - emacs/vi is the way to go.
> > > > If you need something more (like creating libraries,  classes) go
> with
> > > > pycharm. It is a professionally made IDE.
> > > >
> > > > Over past 2 years ive been trying to "downgrade" myself to something
> > with
> > > > less belts and whistles,  but come back to it all the time.
> > > >
> > > > On the other hand , if you already use emacs - u should not need
> > anything
> > > > else.
> > > >
> > > > On Sun, Nov 11, 2018, 04:15 Olive <
> diolu.remove_this_p...@bigfoot.com
> > wrote:
> > > >
> > > > > I am not a professional programmer but I use Python regularly for
> > custom
> > > > > scripts (and plot with matplotlib). I have just learned VBA for
> > Excel: what
> > > > > I found amazing was their editor: it is able to suggest on the spot
> > all the
> > > > > methods an object support and there is a well-integrated debugger.
> I
> > wonder
> > > > > if something similar exists for Python. For now I just use emacs
> > with the
> > > > > command line pdb. What do people use here? Ideally I would like to
> > have
> > > > > something that is cross platform Windows/Linux.
> > > > >
> > > > > Olivier
> > > > >
> > > > > --
> > > > > https://mail.python.org/mailman/listinfo/python-list
> > > > >
> > >
> > >
> > --
> > https://mail.python.org/mailman/listinfo/python-list
> >
> --
> https://mail.python.org/mailman/listinfo/python-list
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[issue35211] Turtle Shutdown Problem(s)

[Ned Deily]

Ned Deily  added the comment:

And, by the way, if it turns out that the problem could have been avoided by 
better documentation, another option is to re-open the issue with suggested doc 
changes.  Patches welcome!

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[issue33878] Doc: Assignment statement to tuple or list: case missing.

[Julien Palard]

Change by Julien Palard :


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[issue35211] Turtle Shutdown Problem(s)

[Ned Deily]

Ned Deily  added the comment:

Sorry, there isn't a particular rush to close issues as some of them stay open 
for years. And that's not good for anyone.  "resolved" on the issue tracking 
does not necessarily mean a problem is resolved to everyone's satisfaction, it 
just means that it is no longer active in our backlog (which currently numbers 
over 6000).  I don't claim to be a turtle expert but the bit of time I spent 
looking into this issue and my years of triaging Python issues lead me to 
conclude this is almost certainly a problem with your program and not with 
Python itself.  We could leave it open but the chances that any other core 
developer would spend time looking further at it are slim.  That's why I 
suggested asking on user forums where you are much more likely to get useful 
and more rapid feedback.  And as I earlier suggested, if it *does* turn out to 
be a demonstrable problem with turtle or elsewhere in Python, you can easily 
reopen the issue and we can go from there. I hope that makes some sense!

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[issue35200] Range repr could be better

[Julien Palard]

Julien Palard  added the comment:

I understand we like round-tripping represnetations, I think we like them 
because in much cases it's immediatly and unambiguously understandable by a 
Python developer.

It's the best representation as it's the one conveying the most information. 
But `range(0, 10)` convery very few information, one may forget the "begin 
included, end excluded" rule (or even if the 2nd one is the end of the length). 
I think the following is more usefull:

>>> range(10)

>>> range(10, 2)

>>> range(2, 10)

>>> range(2, 10, 2)

>>> 



@steven:

I dont think moving this to __str__ would help someone: I've never seen any 
student try `str(range(10))` in the repl, they all naturally try the bare 
`range(10)` and they're all presented with un-informative information. If 
someone is here to teach them to try with str, better try with list(range(10)) 
or *range(10).

As for repr(range(0)) == repr(range(2, 2)) == repr(range(1, 5, -1)) I do not 
consider this a bug, they are all strictly equivalent as being the empty range 
(when speaking of a mathematical object, maybe not the in-memory struct).


@raymond:

I'm also not OK to teach `*repr(10)` during the first class. I personally go 
for `list(range(10))`, but I can only because I'm physically available when 
they ask why the information displayed is not what they expect. A lot of people 
are learning Python at home and they're probably just lost while being 
presented with the round-tripping representation.


I don't really agree that changing the repr could break code doing 
`eval(repr(range(10)))`, is it really something people do?


@nick:

I agree changing the repr could break some doctests on function returning 
ranges, on the other hand I've never seen a function returning a range.

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[issue35201] Recursive '**' matches non-existent directories.

[Daniel Israel]

Daniel Israel  added the comment:

In the Bash example, you created the directory empty/.  This bug is 
specifically when the directory in question does not exist.

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[issue33878] Doc: Assignment statement to tuple or list: case missing.

[Julien Palard]

Julien Palard  added the comment:


New changeset d0ebbf4895439233c8398dbdd0456d07132b2a6f by Julien Palard (Miss 
Islington (bot)) in branch '3.6':
bpo-33878: Doc: Fix missing case by simplifying. (GH-7762)
https://github.com/python/cpython/commit/d0ebbf4895439233c8398dbdd0456d07132b2a6f


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[issue33878] Doc: Assignment statement to tuple or list: case missing.

[Julien Palard]

Julien Palard  added the comment:


New changeset aa493b5c18463ab45c087564e287643606f004ca by Julien Palard (Miss 
Islington (bot)) in branch '3.7':
bpo-33878: Doc: Fix missing case by simplifying. (GH-7762)
https://github.com/python/cpython/commit/aa493b5c18463ab45c087564e287643606f004ca


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[issue35211] Turtle Shutdown Problem(s)

[bob moth]

bob moth  added the comment:

Thanks. I appreciate the time and effort. 

But I disagree with the characterization of
this problem as 'Resolved'. Turtle is
supposed to be simple enough for children yet 
no one can fix simple turtle code and stop
an endless loop? 

What is the rush to close issues?

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[issue35190] collections.abc.Sequence cannot be used to test whether a class provides a particular interface (doc issue)

[STINNER Victor]

Change by STINNER Victor :


--
title: collections.abc.Sequence cannot be used to test whether a class provides 
a particular interface -> collections.abc.Sequence cannot be used to test 
whether a class provides a particular interface (doc issue)

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[issue35177] Add missing dependencies between AST/parser header files

[STINNER Victor]

STINNER Victor  added the comment:

This change doesn't try to fix "all dependencies issues", but it fix a few of 
them :-) See bpo-35197 for another example of funny header issue.

Please open a new issues if you see other header dependencies issues. I close 
this one since the initial bug has been fixed.

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[issue34160] ElementTree not preserving attribute order

[STINNER Victor]

STINNER Victor  added the comment:

I like the idea of having an opt-in option to get Python 3.7 behavior in Python 
3.8, sort=True. It would be a new parameter in Python 3.8, right?

It makes sense to me to ask explicitly to sort attributes, especially since 
Python decided to no longer sort by default :-)

Maybe some people prefer sorting to get a more deterministic output for things 
like https://reproducible-builds.org/

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[issue33878] Doc: Assignment statement to tuple or list: case missing.

[miss-islington]

Change by miss-islington :


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[issue33878] Doc: Assignment statement to tuple or list: case missing.

[miss-islington]

Change by miss-islington :


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[issue33878] Doc: Assignment statement to tuple or list: case missing.

[Julien Palard]

Julien Palard  added the comment:


New changeset 082875dcd6d482558e5f1da97a1c801d60b3ed5b by Julien Palard in 
branch 'master':
bpo-33878: Doc: Fix missing case by simplifying. (GH-7762)
https://github.com/python/cpython/commit/082875dcd6d482558e5f1da97a1c801d60b3ed5b


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[issue35177] Add missing dependencies between AST/parser header files

[STINNER Victor]

STINNER Victor  added the comment:


New changeset 5f2df88b63e50d23914e97ec778861a52abdeaad by Victor Stinner in 
branch 'master':
bpo-35177: Add dependencies between header files (GH-10361)
https://github.com/python/cpython/commit/5f2df88b63e50d23914e97ec778861a52abdeaad


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[issue35204] Disable thread and memory sanitizers for address_in_range()

[miss-islington]

miss-islington  added the comment:


New changeset eff1c983eb0cc9bc01e8eba07a42522cee57 by Miss Islington (bot) 
in branch '3.6':
closes bpo-35204: Disable thread and memory sanitizers for address_in_range(). 
(GH-10442)
https://github.com/python/cpython/commit/eff1c983eb0cc9bc01e8eba07a42522cee57


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[issue35204] Disable thread and memory sanitizers for address_in_range()

[miss-islington]

miss-islington  added the comment:


New changeset 1ec5781a097f4d4d988e0dd7f51ee203dc639df2 by Miss Islington (bot) 
in branch '3.7':
closes bpo-35204: Disable thread and memory sanitizers for address_in_range(). 
(GH-10442)
https://github.com/python/cpython/commit/1ec5781a097f4d4d988e0dd7f51ee203dc639df2


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[issue35081] Move internal headers to Include/internal/

[STINNER Victor]

STINNER Victor  added the comment:

> Python/pystate.c:968:1: warning: no previous prototype for ‘_PyGILState_Init’ 
> [-Wmissing-prototypes]
 _PyGILState_Init(PyInterpreterState *i, PyThreadState *t)
 ^~~~

Oh, I never saw this warning before. It seems to not be included in -Wall. 
Would you mind to open a new issue to discuss it?

I will try to fix the regressions that I introduced, but I'm interested by a 
more general discussion on this issue.

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[issue35204] Disable thread and memory sanitizers for address_in_range()

[miss-islington]

Change by miss-islington :


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[issue35204] Disable thread and memory sanitizers for address_in_range()

[Benjamin Peterson]

Benjamin Peterson  added the comment:


New changeset fd3a91cbf93dd7bd97f01add9c90075d63cd7316 by Benjamin Peterson 
(Alexey Izbyshev) in branch 'master':
closes bpo-35204: Disable thread and memory sanitizers for address_in_range(). 
(GH-10442)
https://github.com/python/cpython/commit/fd3a91cbf93dd7bd97f01add9c90075d63cd7316


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[issue35204] Disable thread and memory sanitizers for address_in_range()

[miss-islington]

Change by miss-islington :


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[issue35211] Turtle Shutdown Problem(s)

[Ned Deily]

Ned Deily  added the comment:

You may might try asking on the freegames issue tracker or, better, on a more 
general support forum like Stackoverflow or Python-list. Because of the volume 
of issues reported here (and we are all volunteers), we really can't spend a 
lot of time helping debug individual programs.  Sorry!

https://www.python.org/about/help/
https://stackoverflow.com
https://mail.python.org/mailman/listinfo/python-list

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[issue35211] Turtle Shutdown Problem(s)

[bob moth]

bob moth  added the comment:

OK, thanks. The generated launcher shell command generated
includes '-d -i' flags...

so I tried running without those and voila, life.py terminates
normally. Yay. :-)

2nd, I reviewed the order of commands and I saw that
life2.py and mylife.py (the +1 version) did not have a
'done()' or 'mainloop()' as the last line of the program.
I added those, to no effect. Does nothing I can see.
The other turtle commands appear to me to be "ok",
given that the algorithm is different. For example,
clear() used to be done every loop -- to erase the
turtle tracks -- but that is now done just at the start
because only changed cells are updated, and 
new life/new dead are just updated. 

So, 50% solved. It is an interesting problem because
*my* code seems to be working and *python* does
not appear to be working right. 

Thanks for the help. I might try pygame for a gui
instead...this is getting weird.

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[issue35211] Turtle Shutdown Problem(s)

[Ned Deily]

Ned Deily  added the comment:

Alas, the Launcher app can be problematic and doesn't get much love.  If you 
open the Launcher app's Preferences, you'll probably see that the "Interactive 
mode after acript" option is ticked.  Either unselect it or, if you feel 
comfortable using a Terminal window, just launch Python directly from a 
terminal shell:

python3 ~/Downloads/life.py

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Re: Good editor for python

[Andrew Z]

Brian, thank you for sharing. Looks very interesting.

On Sun, Nov 11, 2018, 10:46 Brian J. Oney via Python-list <
python-list@python.org wrote:

> Hi Olivier
>
> I am glad you did not trigger an editor war. I don't know how familiar you
> are
> with emacs. The answer depends alot on your preference and future work.
> Emacs
> and vi have been around for a long time for good reasons.
>
> If you prefer an extensible and futureproof editor, I can wholeheartedly
> recommend emacs or vi. I went from a happy emacs user to an even happier
> spacemacs user. Spacemacs is a batteries-included emacs configuration which
> lets you choose between emacs-like or vi keybindings, which are mnemonic,
> efficient, consistent, and, above all, discoverable. Discoverability
> allows a
> person who has been using something for a while to find out even more
> tricks
> in the moment that those tricks would be useful. Spacemacs has tons of
> bells
> and whistles and still manages to be fast (through lazy configuration
> loading).
>
> If you are looking at literate programming, Jupyter Notebooks are hard to
> beat, especially if you want to share code with novices. In case you want a
> medusa that eats everything else for lunch, look further. Such a beast can
> be
> harnessed with org-mode, an emacs mode which can be just about anything you
> want it to be. You can do literate devops, literate programming, mix
> programming languages, export to your grandma's toaster, and feed the dog
> with
> org-mode, if you want to play. Org-mode's syntax and power is unmatched,
> to my
> knowledge.
>
> That all depends on how far down the rabbit hole you want to dive. Emacs
> with
> pdb is pretty good though. To get the functionality you miss is pretty
> simple
> with spacemacs.  For more information and platform-specific instructions,
> please see the following link.
>
> https://github.com/syl20bnr/spacemacs
>
> The basic template already activates python support.
>
> That's my two cents.
>
> Cheers
> Brian
>
> On Sun, 2018-11-11 at 08:45 -0600, Spencer Graves wrote:
> >People rave about Jupyter Notebooks, which reportedly allow you
> > to mix narrative with code describing what you are doing and why.
> >
> >
> >I primarily program in R, and RMarkdown Documents in RStudio
> > allow me to mix narrative with R and Python code.  I explain what I'm
> > doing and why, then write "```{python}" ... "```" to encapsulate a
> > Python code snippet and "```{r}" ... "```" for an R code snippet. Or I
> > just use the Idle editor that comes with Python.
> >
> >
> >Someone suggested that Apache Zeppelin  and / or BeakerX might be
> > able to do this also, but I've not tried or verified them.
> >
> >
> >Spencer Graves
> >
> >
> > On 2018-11-11 08:11, Andrew Z wrote:
> > > If you do scripts - emacs/vi is the way to go.
> > > If you need something more (like creating libraries,  classes) go with
> > > pycharm. It is a professionally made IDE.
> > >
> > > Over past 2 years ive been trying to "downgrade" myself to something
> with
> > > less belts and whistles,  but come back to it all the time.
> > >
> > > On the other hand , if you already use emacs - u should not need
> anything
> > > else.
> > >
> > > On Sun, Nov 11, 2018, 04:15 Olive  wrote:
> > >
> > > > I am not a professional programmer but I use Python regularly for
> custom
> > > > scripts (and plot with matplotlib). I have just learned VBA for
> Excel: what
> > > > I found amazing was their editor: it is able to suggest on the spot
> all the
> > > > methods an object support and there is a well-integrated debugger. I
> wonder
> > > > if something similar exists for Python. For now I just use emacs
> with the
> > > > command line pdb. What do people use here? Ideally I would like to
> have
> > > > something that is cross platform Windows/Linux.
> > > >
> > > > Olivier
> > > >
> > > > --
> > > > https://mail.python.org/mailman/listinfo/python-list
> > > >
> >
> >
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[issue35211] Turtle Shutdown Problem(s)

[bob moth]

bob moth  added the comment:

hi - i do not use ‘i’...just drag to
launcher...

and sequence of commands is
a good tip but smells like some
kind of bug to me if the commands
follow written rules. 

thanks for looking -

> 
>

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[issue35104] IDLE: On macOS, Command-M minimizes & opens "Open Module..."

[Ned Deily]

Ned Deily  added the comment:

That's a good point. I see that Cmd-Shift-S which is defined as the shortcut 
for "Save As.." seems to have the same effect as Cmd-S "Save".  Also, the 
Cmd-Opt-S shortcut for "Save Copy As.." seems to bring up the save dialog 
window twice, the second after the first closes.  I guess somebody should go 
through and try to see exactly which Tk events IDLE is seeing in these cases 
similar to what Ronald was doing while investigating Issue11055 (referenced in 
Issue21359).

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[issue35140] encoding problem: coding:gbk cause syntaxError

[Emmanuel Arias]

Emmanuel Arias  added the comment:

I can not reproduce this issue on my Debian9.

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[issue35211] Turtle Shutdown Problem(s)

[Ned Deily]

Ned Deily  added the comment:

There seem to be at least two problems here.

One, you say that running the unmodified life.py requires two Quit keyboard 
shortcuts (usually CMD-Q).  From the shell output you give, that problem is 
most likely due to the use of -i with python:

'/usr/local/bin/python3' -d -i  '/Users/user2/Downloads/life.py'

-i means that the interpreter should enter its interactive mode after the 
script exists.  With tkinter-based graphics apps like turtle, you probably do 
not want to do that as it will inhibit the normal Tk shutdown of the app.

https://docs.python.org/3/using/cmdline.html#cmdoption-i

Without -i, the unmodified life.py terminates fine for me.

Secondly, your modified life2.py does not terminate with a Quit even when 
running without -i.  (Note that it *does* quit if you select Close from the 
applications's File menu or if you click on the red close button on the open 
window.)  From a quick comparison of the unmodified Pygames life.py versus your 
modified life2.py version, it seems you have changed the order of operations in 
such a way that the sequence of turtle operations has changed and likely the 
underlying tkinter event loop is not being called properly thus either ignoring 
or suppressing the effect of the Quit keyboard shortcut.  Suggest you revise 
your program to follow the sequence of turtle calls that the original does and 
be careful if you wish to introduce changes in that.  If you do find what 
appears to be a bug in turtle or elsewhere in Python, feel free to re-open this 
with an example and an explanation.  Good luck!

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status: open -> closed

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[issue35198] Build issue while compiling cpp files in AIX

[Michael Felt]

Michael Felt  added the comment:

Still getting the same errors, even with 64-bit build, so still not close to 
testing the actual problem.
FYI: last time I build pandas the version was 0.19.0 - then it was 'simple'.

Anyway, short of a simple (test) python module that includes c++ code, I'll 
look at changing the pandas build files to force any c++ file to the front.

More - (asap, but still when I have time)

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[issue33699] Don't describe try's else clause in a footnote

[miss-islington]

miss-islington  added the comment:


New changeset fb8eb2c2776efb34523e0a616c6f845a6b975e38 by Miss Islington (bot) 
(Andrés Delfino) in branch '2.7':
[2.7] bpo-33699: Describe try's else clause with the rest of the try clause 
(GH-7252) (GH-10469)
https://github.com/python/cpython/commit/fb8eb2c2776efb34523e0a616c6f845a6b975e38


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[issue33699] Don't describe try's else clause in a footnote

[Andrés Delfino]

Change by Andrés Delfino :


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[issue33699] Don't describe try's else clause in a footnote

[Andrés Delfino]

Andrés Delfino  added the comment:

I'm doing the 2.7 backport right now :)

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[issue33699] Don't describe try's else clause in a footnote

[miss-islington]

miss-islington  added the comment:


New changeset 3f6a0a292e12f737448a11660da0c880e8f972be by Miss Islington (bot) 
in branch '3.6':
bpo-33699: Describe try's else clause with the rest of the try clause (GH-7252)
https://github.com/python/cpython/commit/3f6a0a292e12f737448a11660da0c880e8f972be


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[issue33699] Don't describe try's else clause in a footnote

[miss-islington]

miss-islington  added the comment:


New changeset 7d7ff672dfe93a50053166798cdc0fbc86ea63e3 by Miss Islington (bot) 
in branch '3.7':
bpo-33699: Describe try's else clause with the rest of the try clause (GH-7252)
https://github.com/python/cpython/commit/7d7ff672dfe93a50053166798cdc0fbc86ea63e3


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[issue33699] Don't describe try's else clause in a footnote

[Mariatta Wijaya]

Mariatta Wijaya  added the comment:

Just need a manual backport to 2.7, which I'm not doing :) 

If no one is motivated enough to backport to 2.7, I'm fine with that. Otherwise 
this issue can be closed.

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[issue33699] Don't describe try's else clause in a footnote

[miss-islington]

miss-islington  added the comment:


New changeset b086c8afdb8c862011e3e27d4c8f6833749f2c56 by Miss Islington (bot) 
(Andrés Delfino) in branch 'master':
bpo-33699: Describe try's else clause with the rest of the try clause (GH-7252)
https://github.com/python/cpython/commit/b086c8afdb8c862011e3e27d4c8f6833749f2c56


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[issue33699] Don't describe try's else clause in a footnote

[miss-islington]

Change by miss-islington :


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[issue33699] Don't describe try's else clause in a footnote

[miss-islington]

Change by miss-islington :


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Re: Python indentation (3 spaces)

[Peter J. Holzer]

On 2018-10-25 12:59:18 +0200, Antoon Pardon wrote:
> On 20-10-18 14:38, Peter J. Holzer wrote:
> > On 2018-10-16 06:37:56 +1100, Chris Angelico wrote:
> >> On Tue, Oct 16, 2018 at 6:34 AM Peter J. Holzer  wrote:
> >>> On 2018-10-15 14:12:54 +0200, Antoon Pardon wrote:
>  On 13-10-18 09:37, Peter J. Holzer wrote:
> > On 2018-10-09 09:55:34 +0200, Antoon Pardon wrote:
> >> On 08-10-18 19:43, Peter J. Holzer wrote:
> >>> In practice it doesn't work in my experience. There is always someone 
> >>> in
> >>> a team who was "just testing that new editor" and replaced all tabs
> >>> with spaces (or vice versa) or - worse - just some of them.
> >> Isn't that caugth in the process of commiting to version control?
> >  ^
> >  Underlined to emphasize the context.
> >
[...]
> >> If there's a change, it shows up. If there's no change, it doesn't show up.
> >>
> >> Ergo, if you accidentally replace a tab with spaces, it's a change,
> >> and it shows up.
> > If any change "shows up" (i.e., is rejected by the pre-commit hook of
> > your version control system) you can't change anything which makes using
> > a version control system rather pointless.
> 
> I just do a diff between the local version and the "latest" commited version.
> If lines show up in the diff that don't looked changed, then there is a high
> probablity someone replaced tabs with spaces. (Especially if there are a lot
> of those lines.)

I misunderstood what you meant by "the process of commiting to
version control". For me this is the series of steps the version control
software (e.g. git) performs when you issue its commit command,
including executing pre-commit and post-commit hooks. This process is
non-interactive and either succeeds or not.

You apparently include some actions that the person committing the
changes does manually before actually issuing the commit command, e.g.
checking diffs for plausibility.


> Maybe for some reason you don't consider this MO as easily catching spaces 
> that
> accidently replaced tabs. But it is easy enough for me.

It may or may not be viable, depending on how disciplined your
colleagues are (the question is not: "Do you do this?", but "does
everyone on your team always do it?").

hp

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|_|_) || because we have much more sophisticated
| |   | h...@hjp.at | management tools.
__/   | http://www.hjp.at/ | -- Ross Anderson 


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[issue35211] Turtle Shutdown Problem(s)

[bob moth]

bob moth  added the comment:

I rewrote the life2.py using a class in order to eliminate global
variable declarations, and some other things, such as bringing
freegames.util#square() instream to be independent of freegames,
carefully accounting for every pixel output, etc. 

Works a little better but alt-Q has no effect whatsoever and 
it is necessary to Force Quit (mac terminology) or to switch to
the shell window and quit that first. 

Once this bug is fixed, wherever that might be, you might look into
using mylife.py as an turtle example -- with whatever changes you
like -- because it is interesting to use and it exercises the turtle
and tkinter very strenuously. (just leave my name off it...)

Thanks for your hard work.

--
Added file: https://bugs.python.org/file47925/mylife.py

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[issue35211] Turtle Shutdown Problem(s)

[bob moth]

bob moth  added the comment:

looking at the screen snapshot 'life.py alt-q once.jpg' -- the
turtle code keeps running even though System.exit has been completed,
and notice the traceback display in the shell caused by the alt-Q.

a second press of alt-Q terminates the shell and the turtle code.

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Re: Good editor for python

[Brian J. Oney via Python-list]

Hi Olivier

I am glad you did not trigger an editor war. I don't know how familiar you are
with emacs. The answer depends alot on your preference and future work. Emacs
and vi have been around for a long time for good reasons.

If you prefer an extensible and futureproof editor, I can wholeheartedly
recommend emacs or vi. I went from a happy emacs user to an even happier
spacemacs user. Spacemacs is a batteries-included emacs configuration which
lets you choose between emacs-like or vi keybindings, which are mnemonic,
efficient, consistent, and, above all, discoverable. Discoverability allows a
person who has been using something for a while to find out even more tricks
in the moment that those tricks would be useful. Spacemacs has tons of bells
and whistles and still manages to be fast (through lazy configuration
loading).

If you are looking at literate programming, Jupyter Notebooks are hard to
beat, especially if you want to share code with novices. In case you want a
medusa that eats everything else for lunch, look further. Such a beast can be
harnessed with org-mode, an emacs mode which can be just about anything you
want it to be. You can do literate devops, literate programming, mix
programming languages, export to your grandma's toaster, and feed the dog with
org-mode, if you want to play. Org-mode's syntax and power is unmatched, to my
knowledge.

That all depends on how far down the rabbit hole you want to dive. Emacs with
pdb is pretty good though. To get the functionality you miss is pretty simple
with spacemacs.  For more information and platform-specific instructions,
please see the following link.

https://github.com/syl20bnr/spacemacs

The basic template already activates python support.

That's my two cents.

Cheers
Brian

On Sun, 2018-11-11 at 08:45 -0600, Spencer Graves wrote:
>    People rave about Jupyter Notebooks, which reportedly allow you 
> to mix narrative with code describing what you are doing and why.
> 
> 
>    I primarily program in R, and RMarkdown Documents in RStudio 
> allow me to mix narrative with R and Python code.  I explain what I'm 
> doing and why, then write "```{python}" ... "```" to encapsulate a 
> Python code snippet and "```{r}" ... "```" for an R code snippet. Or I 
> just use the Idle editor that comes with Python.
> 
> 
>    Someone suggested that Apache Zeppelin  and / or BeakerX might be 
> able to do this also, but I've not tried or verified them.
> 
> 
>    Spencer Graves
> 
> 
> On 2018-11-11 08:11, Andrew Z wrote:
> > If you do scripts - emacs/vi is the way to go.
> > If you need something more (like creating libraries,  classes) go with
> > pycharm. It is a professionally made IDE.
> > 
> > Over past 2 years ive been trying to "downgrade" myself to something with
> > less belts and whistles,  but come back to it all the time.
> > 
> > On the other hand , if you already use emacs - u should not need anything
> > else.
> > 
> > On Sun, Nov 11, 2018, 04:15 Olive  > 
> > > I am not a professional programmer but I use Python regularly for custom
> > > scripts (and plot with matplotlib). I have just learned VBA for Excel: 
> > > what
> > > I found amazing was their editor: it is able to suggest on the spot all 
> > > the
> > > methods an object support and there is a well-integrated debugger. I 
> > > wonder
> > > if something similar exists for Python. For now I just use emacs with the
> > > command line pdb. What do people use here? Ideally I would like to have
> > > something that is cross platform Windows/Linux.
> > > 
> > > Olivier
> > > 
> > > --
> > > https://mail.python.org/mailman/listinfo/python-list
> > > 
> 
> 
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[issue34864] In Idle, Mac tabs make editor status line disappear.

[Tal Einat]

Tal Einat  added the comment:

See PR GH-10464, which warns if "Prefer tabs when opening documents" is set to 
"Always".

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Re: Good editor for python

[Spencer Graves]

  People rave about Jupyter Notebooks, which reportedly allow you 
to mix narrative with code describing what you are doing and why.



  I primarily program in R, and RMarkdown Documents in RStudio 
allow me to mix narrative with R and Python code.  I explain what I'm 
doing and why, then write "```{python}" ... "```" to encapsulate a 
Python code snippet and "```{r}" ... "```" for an R code snippet. Or I 
just use the Idle editor that comes with Python.



  Someone suggested that Apache Zeppelin  and / or BeakerX might be 
able to do this also, but I've not tried or verified them.



  Spencer Graves


On 2018-11-11 08:11, Andrew Z wrote:

If you do scripts - emacs/vi is the way to go.
If you need something more (like creating libraries,  classes) go with
pycharm. It is a professionally made IDE.

Over past 2 years ive been trying to "downgrade" myself to something with
less belts and whistles,  but come back to it all the time.

On the other hand , if you already use emacs - u should not need anything
else.

On Sun, Nov 11, 2018, 04:15 Olive 
I am not a professional programmer but I use Python regularly for custom
scripts (and plot with matplotlib). I have just learned VBA for Excel: what
I found amazing was their editor: it is able to suggest on the spot all the
methods an object support and there is a well-integrated debugger. I wonder
if something similar exists for Python. For now I just use emacs with the
command line pdb. What do people use here? Ideally I would like to have
something that is cross platform Windows/Linux.

Olivier

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[issue34864] In Idle, Mac tabs make editor status line disappear.

[Tal Einat]

Change by Tal Einat :


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Re: Good editor for python

[Andrew Z]

If you do scripts - emacs/vi is the way to go.
If you need something more (like creating libraries,  classes) go with
pycharm. It is a professionally made IDE.

Over past 2 years ive been trying to "downgrade" myself to something with
less belts and whistles,  but come back to it all the time.

On the other hand , if you already use emacs - u should not need anything
else.

On Sun, Nov 11, 2018, 04:15 Olive  I am not a professional programmer but I use Python regularly for custom
> scripts (and plot with matplotlib). I have just learned VBA for Excel: what
> I found amazing was their editor: it is able to suggest on the spot all the
> methods an object support and there is a well-integrated debugger. I wonder
> if something similar exists for Python. For now I just use emacs with the
> command line pdb. What do people use here? Ideally I would like to have
> something that is cross platform Windows/Linux.
>
> Olivier
>
> --
> https://mail.python.org/mailman/listinfo/python-list
>
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[issue35140] encoding problem: coding:gbk cause syntaxError

[Steve Dower]

Steve Dower  added the comment:

Yes, seems like we should be opening the file in binary mode, though I haven't 
tried it. The CRT's interpretation of text mode really isn't compatible with 
Python's own interpretation of text mode, and chaining them makes even less 
sense.

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[issue35203] Windows Installer Ignores Launcher Installer Options Where The Python Launcher Is Already Present

[Steve Dower]

Steve Dower  added the comment:

Does it actually try to upgrade the launcher? This is a case that was 
deliberately designed and tested before release, though it's possible that 
there's some mix of versions that is new.

The box is checked to indicate that the launcher will be installed at the end 
of setup, but not necessarily that the installer is going to try and install 
the launcher. This is the usual convention for this scenario.

If you're getting install failures, please attach the log file linked at the 
end of the install. We'll need that to diagnose the scenario.

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[issue35212] Expressions with format specifiers in f-strings give wrong code position in AST

[Eric V. Smith]

Change by Eric V. Smith :


--
assignee:  -> eric.smith

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[issue35212] Expressions with format specifiers in f-strings give wrong code position in AST

[Karthikeyan Singaravelan]

Change by Karthikeyan Singaravelan :


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Re: Error in installing "conda-build"

[tommy yama]

sorry,  this is solved.

On Sun, Nov 11, 2018 at 12:49 PM tommy yama  wrote:

> Hi there,
>
> Anyone encountered the same problem?
>
> ommand "python setup.py egg_info" failed with error code 1 in
> /private/tmp/pip-install-ReWrqJ/conda-build/
>
>
> Your advices would be appreciated.
>
>
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[issue35212] Expressions with format specifiers in f-strings give wrong code position in AST

[Arminius]

New submission from Arminius :

ast.parse() will give a wrong code position for an expression inside an 
f-string when the expression is using a format specifier.

Compare the trees of f'{a}' and f'{a:b}' :

>>> ast.parse("f'{a}'")
Module(
body=[
Expr(
lineno=1,
col_offset=0,
value=JoinedStr(
lineno=1,
col_offset=0,
values=[
FormattedValue(
lineno=1,
col_offset=0,
value=Name(lineno=1, col_offset=3, id='a', ctx=Load()),
conversion=-1,
format_spec=None,
),
],
),
),
],
)

>>> ast.parse("f'{a:b}'")
Module(
body=[
Expr(
lineno=1,
col_offset=0,
value=JoinedStr(col_offset=0,
lineno=1,
col_offset=0,
values=[
FormattedValue(
lineno=1,
col_offset=0,
value=Name(lineno=1, col_offset=1, id='a', ctx=Load()),
conversion=-1,
format_spec=JoinedStr(
lineno=1,
col_offset=0,
values=[Str(lineno=1, col_offset=0, s='b')],
),
),
],
),
),
],
)

In both examples, the name "a" is at the same position in the source code, 
however the parsed ASTs yield two different offsets,

Name(lineno=1, col_offset=3, id='a', ctx=Load())

and

Name(lineno=1, col_offset=1, id='a', ctx=Load())

.

Expected behavior: col_offset=3 for name "a" in both f-strings.

(In my specific use case, this breaks a semantic highlighting plugin for vim.)

--
components: Interpreter Core
messages: 329672
nosy: arminius
priority: normal
severity: normal
status: open
title: Expressions with format specifiers in f-strings give wrong code position 
in AST
type: behavior
versions: Python 3.7

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Re: Good editor for python

[Thomas Jollans]

On 11/11/2018 10:14, Olive wrote:
> I am not a professional programmer but I use Python regularly for custom 
> scripts (and plot with matplotlib). I have just learned VBA for Excel: what I 
> found amazing was their editor: it is able to suggest on the spot all the 
> methods an object support and there is a well-integrated debugger. I wonder 
> if something similar exists for Python. For now I just use emacs with the 
> command line pdb. What do people use here? Ideally I would like to have 
> something that is cross platform Windows/Linux.

There are several popular full-featured IDEs, like PyCharm and Spyder.
AFAIK both also have some special support for a scientific workflow with
matplotlib integration.

If you're mainly using Python for scripts you invoke interactively to
create plots and such you might enjoy Jupyter Notebook or JupyterLab.
Completion works great, debugging with ipdb is, well, adequate.

For actual "editors", I'm sure there are ways to make vim or emacs
everything you could possibly want, but there are two popular, modern,
cross-platform programmers' editors that, to my mind, stand out at the
moment:

Sublime Text is a fantastic, powerful and (fairly) fast editor
(proprietary, shareware, 80 USD) with good support for Python with a
number of packages (plugins), chief among them "Anaconda", which gives
you linting and autocompletion.

Visual Studio Code (open source, from Microsoft) is younger and a bit
slower and more bloated, but it has fantastic Python support, including
a well-integrated visual debugger.

There are of course loads and loads of other options. Everything I've
mentioned runs at least on x86_64 Linux, OSX, and Windows.


-- Thomas
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Re: Good editor for python

[Daniele Forghieri]

Il 11/11/2018 10:14, Olive ha scritto:

I am not a professional programmer but I use Python regularly for custom 
scripts (and plot with matplotlib). I have just learned VBA for Excel: what I 
found amazing was their editor: it is able to suggest on the spot all the 
methods an object support and there is a well-integrated debugger. I wonder if 
something similar exists for Python. For now I just use emacs with the command 
line pdb. What do people use here? Ideally I would like to have something that 
is cross platform Windows/Linux.

Olivier

    I use eclipse with pydev (the liclipse bundle, really, that is not 
free and is made up by the pydev author): it's multi platform and really 
powerful (but probably not the simple one to use or setup). Is 
constantly updated and lets you works with different interpreters, 
different python version or different virtualenved python (yiu can have 
a project made with python 2.7, another one with python 3.7 and gtk 3, 
another one with the same 3.7 python but different libraries and so on.


    The liclipse installer is simpler to deploy (for window is a single 
.exe file) and you can use it freely for 30 day to see if the system 
suits your need: at the end you can choose to buy it or switch to the 
Eclipse/Pydev and configure/install the stuff you need: git or svn 
extension to work with your version control system, install dBeaver in 
Eclipse (or in Liclipse) to work with database in the same environment 
you use for programming, ...


    There are also some other IDE that I don't use directly but I see 
when I worked with other python developers, namely PyCharm & Wing IDE


    For windows only there are some Visual Studio extension to work 
with Python (if you are used to Microsoft stuff this can be easier) and 
also the Microsoft VS Code editor (this should be multi platform) has 
the python extensions with intellisense but I never used them (I started 
to use Python before this stuff came out).


    With best regards

    Daniele Forghieri




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[issue21622] ctypes.util incorrectly fails for libraries without DT_SONAME

[Javier Castillo II]

Change by Javier Castillo II :


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[issue21622] ctypes.util incorrectly fails for libraries without DT_SONAME

[Javier Castillo II]

Change by Javier Castillo II :


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[issue21622] ctypes.util incorrectly fails for libraries without DT_SONAME

[Javier Castillo II]

Change by Javier Castillo II :


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Good editor for python

[Olive]

I am not a professional programmer but I use Python regularly for custom 
scripts (and plot with matplotlib). I have just learned VBA for Excel: what I 
found amazing was their editor: it is able to suggest on the spot all the 
methods an object support and there is a well-integrated debugger. I wonder if 
something similar exists for Python. For now I just use emacs with the command 
line pdb. What do people use here? Ideally I would like to have something that 
is cross platform Windows/Linux.

Olivier

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[issue35200] Range repr could be better

[Nick Coghlan]

Nick Coghlan  added the comment:

I agree with Steven and Raymond on this one: changing __repr__ on ranges in a 
way that breaks round-tripping through eval would be problematic, especially as 
I'd expect that to be an issue in doctests as well.

However, I also like the idea of having easier access to a more list-like 
representation that shows the actual range endpoints, not just the inputs used 
to calculate them, and like Steven, I'm more comfortable with changing __str__ 
than I am with changing __repr__.

That would give:

>>> range(10)
range(0, 10)
>>> print(range(10))


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[issue35149] pip3 show causing Error for ConfigParaser

[Karthikeyan Singaravelan]

Karthikeyan Singaravelan  added the comment:

Sorry I overlooked the part where it says this works with command line but 
throws an error on batch script.

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[issue35207] Disallow expressions like (a) = 42

[Mark Dickinson]

Change by Mark Dickinson :


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