[issue27277] Fatal Python error: Segmentation fault in test_exceptions

[Berker Peksag]

Berker Peksag added the comment:

Can you please try without coveragepy?

./python -m test test_exceptions

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[issue27186] add os.fspath()

[Martin Panter]

Martin Panter added the comment:

Test_fspath_protocol_bytes() (added in revision 5a62d682636e) fails on Windows:

http://buildbot.python.org/all/builders/AMD64%20Windows7%20SP1%203.x/builds//steps/test/logs/stdio
==
ERROR: test_fspath_protocol_bytes (test.test_os.TestScandir)
--
Traceback (most recent call last):
  File "C:\buildbot.python.org\3.x.kloth-win64\build\lib\test\test_os.py", line 
2958, in test_fspath_protocol_bytes
bytes_entry = self.create_file_entry(name=bytes_filename)
  File "C:\buildbot.python.org\3.x.kloth-win64\build\lib\test\test_os.py", line 
2932, in create_file_entry
return self.get_entry(os.path.basename(filename))
  File "C:\buildbot.python.org\3.x.kloth-win64\build\lib\test\test_os.py", line 
2923, in get_entry
entries = list(os.scandir(path))
TypeError: os.scandir() doesn't support bytes path on Windows, use Unicode 
instead

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[issue25455] Some repr implementations don't check for self-referential structures

[Stefan Behnel]

Stefan Behnel added the comment:

Etree patch looks straight forward to me, feel free to apply it.

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[issue26867] test_ssl test_options fails on ubuntu 16.04

[Larry Hastings]

Larry Hastings added the comment:

This still affects 3.4 and 3.5.  It'd be lovely if it could be fixed in all the 
still-alive versions.  (Yes, this is technically a "bug fix", but I'd still 
like it fixed in 3.4.)

--
versions: +Python 3.4, Python 3.5

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Re: how to record path in well format and easy to read?

[meInvent bbird]

i forget why i do combination of 2 operators
now i change not to use combination of 2 operators

https://gist.github.com/hoyeunglee/58df4c41a63a2f37e153cbdbc03c16bf


i run 
mresult = DFS(b, 2, 2, mylist, path) 

it do not have deep 2 and deep 1 in the path

they only separated in the list

however, i had already assigned in this format path.append([caseA,path2])
before return path, 

what's wrong with it?


On Sunday, June 12, 2016 at 12:55:17 PM UTC+8, meInvent bbird wrote:
> https://gist.github.com/hoyeunglee/350ac2dd496f7c1c95a428f847e6f2b1
> 
> then can not run deep 3 in python sagecloud
> 
> >>> mresult = DFS(b, 3, 3, mylist, path)
> ('deep=', 3)
> ({'11': 1, '10': 1, '00': 0, '01': 1}, {'11': 1, '10': 0, '00': 0, '01': 0})
> ({'11': 1, '10': 1, '00': 0, '01': 1}, {'11': 1, '10': 0, '00': 1, '01': 1})
> ({'11': 1, '10': 0, '00': 0, '01': 0}, {'11': 1, '10': 0, '00': 1, '01': 1})
> initlist=
> 18
> path=
> 18
> here is caseA
> ('deep=', 2)
> ({'11': 1, '10': 1, '00': 0, '01': 1}, {'11': 1, '10': 0, '00': 0, '01': 0})
> )
> ... retu({'11': 1, '10': 1, '00': 0, '01': 1}, {'11': 1, '10': 0, '00': 
> 1, '01': 1})
> ({'11': 1, '10': 0, '00': 0, '01': 0}, {'11': 1, '10': 0, '00': 1, '01': 1})
> initlist=
> 790
> path=
> 936
> ('deep=', 1)
> ({'11': 1, '10': 1, '00': 0, '01': 1}, {'11': 1, '10': 0, '00': 0, '01': 0})
> ({'11': 1, '10': 1, '00': 0, '01': 1}, {'11': 1, '10': 0, '00': 1, '01': 1})
> ({'11': 1, '10': 0, '00': 0, '01': 0}, {'11': 1, '10': 0, '00': 1, '01': 1})
> initlist=
> 1549682
> path=
> 1870866
> Killed
> 
> 
> On Sunday, June 12, 2016 at 9:38:51 AM UTC+8, meInvent bbird wrote:
> > https://gist.github.com/hoyeunglee/3fea29ed4aadb5dbc11c41f9a36070dc
> > 
> > i discover my code can not record the path
> > 
> > because i do recursive call at the end of function
> > however, i want to do full combination at the end of function before calling
> > recursive call, 
> > 
> > for seeing the result path, choose call recursive call in each else 
> > statement 
> > which means when it is not found yet, it will continue recursive call
> > 
> > this time, i use binary for simple case, 
> > 
> > but final result show only 4 records, first two do not have ok, 
> > 
> > third and fourth can not see ok, it become [...]
> > 
> > how to show this [...] ?
> > 
> > is there any method to record the path in well format and easy to read ?
> > 
> > because in 3 valued case, i do not know name of operators, i can only 
> > record the full column

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[issue16484] pydoc generates invalid docs.python.org link for xml.etree.ElementTree and other modules

[Berker Peksag]

Changes by Berker Peksag :


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[issue27299] urllib does not splitport while putrequest realhost to HTTP headers

[gr zhang]

gr zhang added the comment:

Yes, I mean when set h.putheader('Host', "www.github.com:443") and the status 
code from httplib will be 405 while when set h.putheader('Host', 
"www.github.com") the code will be 200, this is confused to me.

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Re: how to record path in well format and easy to read?

[meInvent bbird]

https://gist.github.com/hoyeunglee/350ac2dd496f7c1c95a428f847e6f2b1

then can not run deep 3 in python sagecloud

>>> mresult = DFS(b, 3, 3, mylist, path)
('deep=', 3)
({'11': 1, '10': 1, '00': 0, '01': 1}, {'11': 1, '10': 0, '00': 0, '01': 0})
({'11': 1, '10': 1, '00': 0, '01': 1}, {'11': 1, '10': 0, '00': 1, '01': 1})
({'11': 1, '10': 0, '00': 0, '01': 0}, {'11': 1, '10': 0, '00': 1, '01': 1})
initlist=
18
path=
18
here is caseA
('deep=', 2)
({'11': 1, '10': 1, '00': 0, '01': 1}, {'11': 1, '10': 0, '00': 0, '01': 0})
)
... retu({'11': 1, '10': 1, '00': 0, '01': 1}, {'11': 1, '10': 0, '00': 1, 
'01': 1})
({'11': 1, '10': 0, '00': 0, '01': 0}, {'11': 1, '10': 0, '00': 1, '01': 1})
initlist=
790
path=
936
('deep=', 1)
({'11': 1, '10': 1, '00': 0, '01': 1}, {'11': 1, '10': 0, '00': 0, '01': 0})
({'11': 1, '10': 1, '00': 0, '01': 1}, {'11': 1, '10': 0, '00': 1, '01': 1})
({'11': 1, '10': 0, '00': 0, '01': 0}, {'11': 1, '10': 0, '00': 1, '01': 1})
initlist=
1549682
path=
1870866
Killed


On Sunday, June 12, 2016 at 9:38:51 AM UTC+8, meInvent bbird wrote:
> https://gist.github.com/hoyeunglee/3fea29ed4aadb5dbc11c41f9a36070dc
> 
> i discover my code can not record the path
> 
> because i do recursive call at the end of function
> however, i want to do full combination at the end of function before calling
> recursive call, 
> 
> for seeing the result path, choose call recursive call in each else statement 
> which means when it is not found yet, it will continue recursive call
> 
> this time, i use binary for simple case, 
> 
> but final result show only 4 records, first two do not have ok, 
> 
> third and fourth can not see ok, it become [...]
> 
> how to show this [...] ?
> 
> is there any method to record the path in well format and easy to read ?
> 
> because in 3 valued case, i do not know name of operators, i can only record 
> the full column

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[issue26867] test_ssl test_options fails on ubuntu 16.04

[Matthias Klose]

Matthias Klose added the comment:

ubuntu doesn't do anything crazy, but just disables oldish, deprecated und 
probably now unsecure ssl protocols.  This is done by other vendors as well.   
From my point of of view this skip_if_ubuntu stuff should be replaced by proper 
feature tests.  I'll see if I can come up with another work around.

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[issue27095] Simplify MAKE_FUNCTION

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

Added more comments on Rietveld.

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[issue16484] pydoc generates invalid docs.python.org link for xml.etree.ElementTree and other modules

[Roundup Robot]

Roundup Robot added the comment:

New changeset c60d2e4f4f96 by Martin Panter in branch '2.7':
Issue #16484: PYTHONDOCS still uses “http:” in Python 2
https://hg.python.org/cpython/rev/c60d2e4f4f96

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[issue26867] test_ssl test_options fails on ubuntu 16.04

[Larry Hastings]

Larry Hastings added the comment:

I got this when testing 3.5.2rc1 on my Ubuntu 16.04 machine.  CAs Xiang Zhang 
showed, this is Ubuntu doing something crazy.  I ignored the failure and 
shipped 3.5.2rc1, however I would be interested in suppressing the test for 
3.5.2 final.  That way it has a chance of passing the whole test suite on 
user's Linux machines...!

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[issue16484] pydoc generates invalid docs.python.org link for xml.etree.ElementTree and other modules

[Roundup Robot]

Roundup Robot added the comment:

New changeset d84268ed62ac by Martin Panter in branch '3.5':
Issue #16484: Fix pydoc link and test on Windows, by Kaushik Nadikuditi
https://hg.python.org/cpython/rev/d84268ed62ac

New changeset 84d1e5a4b1c5 by Martin Panter in branch 'default':
Issue #16484: Merge pydoc Windows fixes from 3.5
https://hg.python.org/cpython/rev/84d1e5a4b1c5

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[issue5124] IDLE - pasting text doesn't delete selection

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

Ah, I looked on 3.5 change and missed that in 3.6 you test both tkinter.Entry 
and ttk.Entry.

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[issue5124] IDLE - pasting text doesn't delete selection

[Terry J. Reedy]

Terry J. Reedy added the comment:

Serhiy: entry=entry as much as any name=expression pair to print the value of 
variable entry on test failure, either "entry=)" or "entry=)", as in

==
FAIL: test_paste_entry (__main__.PasteTest) (ans='two', end='end', 
entry=)
Test pasting into an entry with and without a selection.
--
Traceback (most recent call last):
  File "F:\Python\dev\36\lib\idlelib\idle_test\test_editmenu.py", line 53, in 
test_paste_entry
self.assertTrue(False)
AssertionError: False is not true

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[issue27299] urllib does not splitport while putrequest realhost to HTTP headers

[Xiang Zhang]

Xiang Zhang added the comment:

The standard[1] says the Host header is OK to include port. Why not use 
'https://www.github.com'?

[1] https://tools.ietf.org/html/rfc7230#section-5.4

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[issue27299] urllib does not splitport while putrequest realhost to HTTP headers

[gr zhang]

New submission from gr zhang:

h.putheader('Host', "www.github.com:443") 
# this will make errcode 405, if urllib lib splitport first, and this will set 
Host ---> www.github.com and get 200 code.
h.endheaders(None)
errcode, errmsg, headers = h.getreply()
print errcode

--
components: Library (Lib)
files: urllib_part.py
messages: 268317
nosy: gr zhang
priority: normal
severity: normal
status: open
title: urllib does not splitport while putrequest realhost to HTTP headers
type: behavior
versions: Python 2.7
Added file: http://bugs.python.org/file43356/urllib_part.py

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Re: the global keyword:

[Ned Batchelder]

On Saturday, June 11, 2016 at 11:38:33 PM UTC-4, Steven D'Aprano wrote:
> On Sun, 12 Jun 2016 11:26 am, Random832 wrote:
> 
> > On Sat, Jun 11, 2016, at 20:09, MRAB wrote:
> >> Not true. Importing doesn't copy the value.
> >> 
> >> Importing a name creates a new name in the local scope that refers to
> >> the same object that the imported name referred to.
> 
> MRAB is correct here.
> 
> 
> > Yes, the value of a variable is a reference to an object. Can we not
> > have another round of this right now?
> 
> Sure, if you stop spreading misinformation about variables in Python and
> cease the insanity of claiming that the value of a variable is not the
> value you assign to it, but some invisible, unreachable "reference".
> 
> x = 999
> 
> The value of x is 999, not some invisible reference.
> 
> x = []
> 
> The value of x is an empty list, not some invisible reference.

We just went through all this.  It's clear to me that there are different
ways of looking at these underlying mechanisms, and different people find
truth in different ways of describing them.  The virtual world we live in
is complex because of the differing levels of abstraction that are possible.
Some of this disagreement is really a matter of choosing different
abstractions to focus on.

Most importantly, it's clear to me that we aren't going to come to some
simple consensus, certainly not by throwing around words like "insanity."

Perhaps at least in this thread we can limit ourselves to addressing the
OP and their question directly, rather than fighting with each other over
which answer is correct?

--Ned.
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Re: the global keyword:

[Ned Batchelder]

On Saturday, June 11, 2016 at 8:13:50 PM UTC-4, Marcin Rak wrote:
> On Saturday, 11 June 2016 19:09:29 UTC-5, MRAB  wrote:
> > On 2016-06-12 00:50, Random832 wrote:
> > > On Sat, Jun 11, 2016, at 19:44, Marcin Rak wrote:
> > >> So my question is, how the heck is it possible that I get 5 as the last
> > >> value printed? the global test_var (global to Test.py) I set to 44 when I
> > >> ran some_function()???  does anyone have a clue they could throw my way?
> > >
> > > Importing a variable from a module copies its value into your own
> > > module's variable. Updates to the source module's variable will not be
> > > reflected in your module.
> > >
> > Not true. Importing doesn't copy the value.
> > 
> > Importing a name creates a new name in the local scope that refers to 
> > the same object that the imported name referred to.
> 
> If that's the case, how is it that I get 5 for test_var???

Assignment makes a name refer to a value:

x = 12# Now x refers to 12

More than one name can refer to a value:

x = 12
y = x # Now x and y both refer to 12

Re-assigning one name doesn't affect other names referring to 
the old value:

x = 12
y = x
x = 24# Now x refers to 24, and y still refers to 12

Each module has its own globals (this makes the name "global" a bit
of a misnomer.  Importing a name from a module is an assignment
statement in disguise, and each module has its own names:

# Test.py
test_var = 5

# Solver.py
from Test import test_var
# This import is effectively:
#Solver.test_var = Test.test_var
#
# Now Test.test_var and Solver.test_var both refer to 5

Reassigning one name doesn't affect other names referring to
the old value:

# Test.py
global test_var
test_var = 44 
# Test.test_var refers to 44
# Solver.test_var still refers to 5

After all of your code is run, the test_var in Solver.py is still 5.

A longer explanation is at http://bit.ly/pynames1 that may help.

--Ned.
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Re: the global keyword:

[Steven D'Aprano]

On Sun, 12 Jun 2016 11:26 am, Random832 wrote:

> On Sat, Jun 11, 2016, at 20:09, MRAB wrote:
>> Not true. Importing doesn't copy the value.
>> 
>> Importing a name creates a new name in the local scope that refers to
>> the same object that the imported name referred to.

MRAB is correct here.


> Yes, the value of a variable is a reference to an object. Can we not
> have another round of this right now?

Sure, if you stop spreading misinformation about variables in Python and
cease the insanity of claiming that the value of a variable is not the
value you assign to it, but some invisible, unreachable "reference".

x = 999

The value of x is 999, not some invisible reference.

x = []

The value of x is an empty list, not some invisible reference.




-- 
Steven

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[issue27292] Warn users that os.urandom() can return insecure values

[Larry Hastings]

Larry Hastings added the comment:

This is not a release blocker.

--
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[issue16484] pydoc generates invalid docs.python.org link for xml.etree.ElementTree and other modules

[Kaushik Nadikuditi]

Kaushik Nadikuditi added the comment:

- fixed broken test - test_mixed_case_module_names_are_lower_cased
- tested on Windows, Mac, Ubuntu
- thank you Martin Panter for suggestions.

--
components: +Tests -Documentation
type:  -> compile error
Added file: http://bugs.python.org/file43355/issue16484_test_python3.6.patch

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[issue17900] Recursive OrderedDict pickling

[Raymond Hettinger]

Raymond Hettinger added the comment:

At this point, we can drop it.  PyYAML will just have to deal with it.

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[issue27136] sock_connect fails for bluetooth (and probably others)

[Martin Panter]

Martin Panter added the comment:

Revision 3f49e89be8a9 seems to be the cause of an x86 Tiger buildbot failure:

http://buildbot.python.org/all/builders/x86%20Tiger%203.x/builds/10924/steps/test/logs/stdio
==
FAIL: test_create_connection_no_inet_pton 
(test.test_asyncio.test_base_events.BaseEventLoopWithSelectorTests)
--
Traceback (most recent call last):
  File "/Users/db3l/buildarea/3.x.bolen-tiger/build/Lib/unittest/mock.py", line 
1180, in patched
return func(*args, **keywargs)
  File 
"/Users/db3l/buildarea/3.x.bolen-tiger/build/Lib/test/test_asyncio/test_base_events.py",
 line 1210, in test_create_connection_no_inet_pton
self._test_create_connection_ip_addr(m_socket, False)
  File 
"/Users/db3l/buildarea/3.x.bolen-tiger/build/Lib/test/test_asyncio/test_base_events.py",
 line 1195, in _test_create_connection_ip_addr
self.assertRegex(host, r'::(0\.)*2')
AssertionError: Regex didn't match: '::(0\\.)*2' not found in '0.0.0.2'

--
nosy: +martin.panter
status: closed -> open

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[issue24136] document PEP 448: unpacking generalization

[Roundup Robot]

Roundup Robot added the comment:

New changeset a7e04b4e51b2 by Martin Panter in branch '3.5':
Issue #24136: Document generalized unpacking, PEP 448
https://hg.python.org/cpython/rev/a7e04b4e51b2

New changeset 4cf3389cd8e6 by Martin Panter in branch 'default':
Issue #24136: Merge unpacking doc from 3.5
https://hg.python.org/cpython/rev/4cf3389cd8e6

New changeset 2c10f0e92256 by Martin Panter in branch 'default':
Issue #24136: Adjust f-strings doc for interable unpacking
https://hg.python.org/cpython/rev/2c10f0e92256

--
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[issue27122] Hang with contextlib.ExitStack and subprocess.Popen (regression)

[Gregory P. Smith]

Gregory P. Smith added the comment:

Proposed fix based on STINNER and Nick's earlier comments and the simple 
reproducer turned into a test.

Nick - your most recent comment makes me wonder if this shouldn't be doing more.

this does make both hang_bug*.py examples do something reasonable.

I'm at a loss for what Misc/NEWS entry to write for this one as I don't know 
how to accurately describe the scope of the problem.  I'd also like to avoid 
conflating issue25782's problem with this one (that causes the hang, but once 
that is fixed isn't there still a problem here to be fixed)?

--
keywords: +patch
Added file: http://bugs.python.org/file43354/issue27122-gps01.diff

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[issue27122] Hang with contextlib.ExitStack and subprocess.Popen (regression)

[Gregory P. Smith]

Changes by Gregory P. Smith :


--
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how to record path in well format and easy to read?

[meInvent bbird]

https://gist.github.com/hoyeunglee/3fea29ed4aadb5dbc11c41f9a36070dc

i discover my code can not record the path

because i do recursive call at the end of function
however, i want to do full combination at the end of function before calling
recursive call, 

for seeing the result path, choose call recursive call in each else statement 
which means when it is not found yet, it will continue recursive call

this time, i use binary for simple case, 

but final result show only 4 records, first two do not have ok, 

third and fourth can not see ok, it become [...]

how to show this [...] ?

is there any method to record the path in well format and easy to read ?

because in 3 valued case, i do not know name of operators, i can only record 
the full column
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Re: the global keyword:

[Random832]

On Sat, Jun 11, 2016, at 20:12, Marcin Rak wrote:
> What about variables that are user defined classes?  Are they referenced
> or copied?

It will reference the same object, but if the variable is reassigned in
the original module it will still not update the imported variable.
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Re: the global keyword:

[Random832]

On Sat, Jun 11, 2016, at 20:09, MRAB wrote:
> Not true. Importing doesn't copy the value.
> 
> Importing a name creates a new name in the local scope that refers to 
> the same object that the imported name referred to.

Yes, the value of a variable is a reference to an object. Can we not
have another round of this right now?
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[issue25782] CPython hangs on error __context__ set to the error itself

[Larry Hastings]

Larry Hastings added the comment:

I'm not the right person to decide this.

As RM, all I can do is decide whether or not to hold up a release based on the 
bug.  The answer: no.  Since this isn't fixed yet in the 3.5 branch, 3.5.2 will 
go out without it being fixed.  Sorry folks.

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[issue27122] Hang with contextlib.ExitStack and subprocess.Popen (regression)

[Gregory P. Smith]

Changes by Gregory P. Smith :


--
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[issue25782] CPython hangs on error __context__ set to the error itself

[Gregory P. Smith]

Changes by Gregory P. Smith :


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[issue25782] CPython hangs on error __context__ set to the error itself

[Gregory P. Smith]

Gregory P. Smith added the comment:

Patch review: I see two competing solutions with differing behaviors. 

Yury's raises a RuntimeError in the loop situation.

Serhiy's simply reorders the exception context to put the referred to one at 
the front of the chain in the event of a loop.

The 3.5 Release manager or someone familiar with the contextlib ExitStack code 
where this is triggered should make the decision as to the best way to fix this.

(I came to this bug via the ExitStack + subprocess issue27122 which merely has 
a suggested workaround patch as a band aid that might help until this is fixed)

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[issue24086] Configparser interpolation is unexpected

[Łukasz Langa]

Łukasz Langa added the comment:

This is solved upstream in setuptools by disabling configparser interpolation.

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status: open -> closed

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[issue14209] pkgutil.iter_zipimport_modules ignores the prefix parameter for packages

[Łukasz Langa]

Łukasz Langa added the comment:

Done. Fix is going to be present for 3.5.2 and 3.6. Thank you, James.

--
resolution:  -> fixed
status: open -> closed
versions: +Python 3.5, Python 3.6 -Python 2.7, Python 3.2, Python 3.3

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[issue14209] pkgutil.iter_zipimport_modules ignores the prefix parameter for packages

[Roundup Robot]

Roundup Robot added the comment:

New changeset 9649acf7d472 by Łukasz Langa in branch '3.5':
Issue #14209: pkgutil.iter_zipimport_modules ignores the prefix for packages
https://hg.python.org/cpython/rev/9649acf7d472

New changeset 389b7456a053 by Łukasz Langa in branch 'default':
Merge 3.5, issue #14209
https://hg.python.org/cpython/rev/389b7456a053

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[issue15468] Edit docs to hide hashlib.md5()

[Gregory P. Smith]

Changes by Gregory P. Smith :


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

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[issue15468] Edit docs to hide hashlib.md5()

[Roundup Robot]

Roundup Robot added the comment:

New changeset 1cfd627bee05 by Gregory P. Smith in branch 'default':
Clarify that md5 is in the algorithms_guaranteed list despite what
https://hg.python.org/cpython/rev/1cfd627bee05

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[issue15468] Edit docs to hide hashlib.md5()

[Roundup Robot]

Roundup Robot added the comment:

New changeset 13ea0a1d7dde by Gregory P. Smith in branch 'default':
issue15468 - use sha256 instead of md5 or sha1 in the examples.
https://hg.python.org/cpython/rev/13ea0a1d7dde

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[issue27095] Simplify MAKE_FUNCTION

[Demur Rumed]

Demur Rumed added the comment:

mkfu4 implements #27140. It doesn't special case 1-tuples into `BUILD_MAP 1`

It may be easier to have `BUILD_CONST_KEY_MAP 1` peepholed if it's really 
preferable to strength reduce

I'm also noticing that it could've been suggested to go to the extreme with 
BUILD_CONST_KEY_MAP where instead of relying on peepholer to constant fold 
tuple, we implement constant folding const keys entirely there. Just a random 
thought, not a suggestion or anything else

--
Added file: http://bugs.python.org/file43353/mkfu4.patch

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[issue27291] two heap corruption issues when running modified pyc code.

[Gregory P. Smith]

Gregory P. Smith added the comment:

Executing code in any form from untrusted sources can do arbitrary things.

If someone can corrupt .pyc data before python executes it, they are just as 
likely to be able to corrupt other things leading to more direct exploits not 
even requiring the CPython interpreter.

--
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resolution:  -> not a bug
status: open -> closed

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[issue22558] Missing doc links to source code for Python-coded modules.

[Terry J. Reedy]

Terry J. Reedy added the comment:

Yes, new issue, make me nosy, assign to me if allowed, upload patch. Start with 
"This is a follow to #22558."

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[issue27294] Better repr for Tkinter event objects

[Terry J. Reedy]

Terry J. Reedy added the comment:

If you want more, say so, and I will do them after resting.

--
Added file: http://bugs.python.org/file43352/tk-win-key-events.txt

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Re: the global keyword:

[Marcin Rak]

On Saturday, 11 June 2016 19:09:29 UTC-5, MRAB  wrote:
> On 2016-06-12 00:50, Random832 wrote:
> > On Sat, Jun 11, 2016, at 19:44, Marcin Rak wrote:
> >> So my question is, how the heck is it possible that I get 5 as the last
> >> value printed? the global test_var (global to Test.py) I set to 44 when I
> >> ran some_function()???  does anyone have a clue they could throw my way?
> >
> > Importing a variable from a module copies its value into your own
> > module's variable. Updates to the source module's variable will not be
> > reflected in your module.
> >
> Not true. Importing doesn't copy the value.
> 
> Importing a name creates a new name in the local scope that refers to 
> the same object that the imported name referred to.

If that's the case, how is it that I get 5 for test_var???
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Re: the global keyword:

[Marcin Rak]

On Saturday, 11 June 2016 18:51:11 UTC-5, Random832  wrote:
> On Sat, Jun 11, 2016, at 19:44, Marcin Rak wrote:
> > So my question is, how the heck is it possible that I get 5 as the last
> > value printed? the global test_var (global to Test.py) I set to 44 when I
> > ran some_function()???  does anyone have a clue they could throw my way?
> 
> Importing a variable from a module copies its value into your own
> module's variable. Updates to the source module's variable will not be
> reflected in your module.

As I suspected.  Nice to have it confirmed.  
So it copies any imported variable that is of simple type (string, int, 
float...)
What about variables that are user defined classes?  Are they referenced or 
copied?
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[issue22558] Missing doc links to source code for Python-coded modules.

[Yoni Lavi]

Yoni Lavi added the comment:

Thank you Terry, Nathan and David for your work on this.
Sorry about the whitespace issue, I indeed forgot to run patchcheck when I 
prepared the 3rd patch.

Tery, would you like me to prepare a patch for the follow-on you suggested? If 
so, given that this one is now marked as fixed, we should open a new bug, right?

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Re: the global keyword:

[MRAB]

On 2016-06-12 00:50, Random832 wrote:

On Sat, Jun 11, 2016, at 19:44, Marcin Rak wrote:

So my question is, how the heck is it possible that I get 5 as the last
value printed? the global test_var (global to Test.py) I set to 44 when I
ran some_function()???  does anyone have a clue they could throw my way?


Importing a variable from a module copies its value into your own
module's variable. Updates to the source module's variable will not be
reflected in your module.


Not true. Importing doesn't copy the value.

Importing a name creates a new name in the local scope that refers to 
the same object that the imported name referred to.


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[issue27194] Tarfile superfluous truncate calls slows extraction.

[Łukasz Langa]

Łukasz Langa added the comment:

Thanks for the patch, Jason. This is now merged and will be available in 3.5.2 
and 3.6.

--
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status: open -> closed

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[issue27194] Tarfile superfluous truncate calls slows extraction.

[Roundup Robot]

Roundup Robot added the comment:

New changeset b63474aa8a5f by Łukasz Langa in branch '3.5':
Issue #27194: superfluous truncate calls in tarfile.py slow down extraction
https://hg.python.org/cpython/rev/b63474aa8a5f

New changeset a4f918de25e5 by Łukasz Langa in branch 'default':
Merge 3.5, issue #27194
https://hg.python.org/cpython/rev/a4f918de25e5

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Re: the global keyword:

[Random832]

On Sat, Jun 11, 2016, at 19:44, Marcin Rak wrote:
> So my question is, how the heck is it possible that I get 5 as the last
> value printed? the global test_var (global to Test.py) I set to 44 when I
> ran some_function()???  does anyone have a clue they could throw my way?

Importing a variable from a module copies its value into your own
module's variable. Updates to the source module's variable will not be
reflected in your module.
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the global keyword:

[Marcin Rak]

Hi to all.

I have the following file named Solver.py:
*
from Test import some_function, my_print
from Test import test_var

some_function()
my_print()
print(test_var)
*

and I have the following Test.py:
*
test_var = 5

def some_function():
global test_var
test_var = 44
print("f {0}".format(test_var))

def my_print():
print(test_var)
*

Would you believe it that when I run Solver.py I get the following output:
f 44
44
5

So my question is, how the heck is it possible that I get 5 as the last value 
printed? the global test_var (global to Test.py) I set to 44 when I ran 
some_function()???  does anyone have a clue they could throw my way?

Much thanks
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[issue5124] IDLE - pasting text doesn't delete selection

[Terry J. Reedy]

Terry J. Reedy added the comment:

The two stable buildbots that failed on test_idle before do not now: AMD64 
SnowLeapard 1403, AMD64 Win 7 2258.

--
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status: open -> closed

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[issue25733] Code and IDLE should catch all compile errors.

[Terry J. Reedy]

Terry J. Reedy added the comment:

Code patch, still needs tests.  ppperry, thanks.  I may create a temporary big 
file when large memory tests are allowed.

--
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stage: needs patch -> test needed
Added file: http://bugs.python.org/file43351/catch_all_syntax_errors.diff

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[issue27221] multiprocessing documentation is outdated regarding method picklability

[Jelle Zijlstra]

Jelle Zijlstra added the comment:

Thanks for the Rietveld comments. I have attached a new patch.

--
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[issue27263] Tkinter sets the HOME environment variable, breaking scripts

[ppperry]

Changes by ppperry :


--
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[issue27025] More human readable generated widget names

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

"1" looks too similar to "l".

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[issue27263] Tkinter sets the HOME environment variable, breaking scripts

[Terry J. Reedy]

Terry J. Reedy added the comment:

ppperry, when I changed this to a doc issue, I added IDLE back as a component 
because, as I said in my last message, I want to include the facts revealed 
here in the IDLE doc.

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[issue27294] Better repr for Tkinter event objects

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

Next patch decodes the state attribute. Modifier names can be platform 
depended, please test on Windows. What modifiers correspond Shift, Ctrl, Alt, 
Win, CapsLock, etc?

--
Added file: http://bugs.python.org/file43349/tkinter_event_repr_key_state.patch

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[issue24136] document PEP 448: unpacking generalization

[Jelle Zijlstra]

Jelle Zijlstra added the comment:

Thanks for writing a better patch. The patch looks good to me and it builds 
correctly.

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[issue27025] More human readable generated widget names

[Terry J. Reedy]

Terry J. Reedy added the comment:

I agree with back-compatibility, suppression of '1' suffix, and numbering, 
which makes suppressed '1' common.

I prefer '1' rather that '0' prefix.  Visually, '1' leaves more space between 
digit and word.  Semantically, each component represents 1 of something.  0 
this, 0 that, 0 etcetera, is a bad semantic clash.

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[issue25733] Code and IDLE should catch all compile errors.

[ppperry]

ppperry added the comment:

OverflowError is raised when one attempts to compile a string of 2**31 or more 
characters.

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[issue27263] Tkinter sets the HOME environment variable, breaking scripts

[ppperry]

Changes by ppperry :


--
components:  -IDLE

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[issue27288] secrets should use getrandom() on Linux

[Jelle Zijlstra]

Jelle Zijlstra added the comment:

I'm interested in implementing this for 3.6, but I'm not sure exactly what the 
changes are that were decided upon. Is the following accurate?

1. Nothing changes in os (all the necessary changes were made in 3.5.2 already).
2. On Linux 3.17+ only, we add a new extension module called _secrets that 
provides a wrapper around the getrandom() system call and nothing else. I'll 
have to figure out whether to make the extension module just not exist all on 
non-Linux OSs (are there any existing extension modules that only exist on one 
OS?), or whether to make it empty on non-Linux. _secrets.getrandom() will look 
like def getrandom(buflen: int, flags: int) -> bytes.
3. We change secrets.SystemRandom so that on Linux 3.17+ only, it subclasses 
random.SystemRandom to use _secrets.getrandom() instead of os.urandom(). We 
will not pass in any flags to getrandom() (so we read from /dev/urandom and 
block until there is sufficient entropy). To make the subclassing easier, we 
may want to change random.SystemRandom to have a private method for calling 
os.urandom. (Currently, both of its methods call os.urandom directly.)
4. Similarly, we change secrets.token_bytes to use _secrets.getrandom(). Other 
functions in secrets.py won't need to change since they use 
secrets.SystemRandom or secrets.token_bytes.
5. _secrets and _secrets.getrandom will remain private and undocumented.

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[issue27291] two heap corruption issues when running modified pyc code.

[Park Alex]

Park Alex added the comment:

oops, I cannot modify reply even I wrote it, 

want to fix tiny typo.

I don't want to bother you guys, I respect python-dev as always.

Thanks,
-- Alex

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[issue27213] Rework CALL_FUNCTION* opcodes

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

I was going to write a patch myself, but since I'm sure in your skills, I yield 
it to you.

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[issue27291] two heap corruption issues when running modified pyc code.

[Park Alex]

Park Alex added the comment:

I totally agreed with your opinion.
So I hesitated before reporting the issue (I thought)

It's kinda, we have different point of view.
As far as I can tell, 
python could be corrupted with .pyc like heap-use-after-free, buffer overrun 
and so on. 

Again, I agreed with your comment below:
"If you are able to execute untrusted .pyc, you can already execute arbitrary 
code, no?"

If don't want to bother you guys, I respect python-dev as always.

Thanks,
-- Alex

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[issue27095] Simplify MAKE_FUNCTION

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

Now with adding BUILD_CONST_KEY_MAP I think MAKE_FUNCTION can be more compact.

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[issue27140] Opcode for creating dict with constant keys

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

Yes, I left it for symmetry and for easier modifying if we will add more 
restrictions on using BUILD_CONST_KEY_MAP. Thank you for your reviews Demur and 
Benjamin.

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[issue27140] Opcode for creating dict with constant keys

[Roundup Robot]

Roundup Robot added the comment:

New changeset 27b0dbaf0ea8 by Serhiy Storchaka in branch 'default':
Issue #27140: Added BUILD_CONST_KEY_MAP opcode.
https://hg.python.org/cpython/rev/27b0dbaf0ea8

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[issue27291] two heap corruption issues when running modified pyc code.

[ppperry]

Changes by ppperry :


--
title: two heap corruption issue -> two heap corruption issues when running 
modified pyc code.

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[issue27291] two heap corruption issue

[STINNER Victor]

STINNER Victor added the comment:

Hi, corrupted .pyc files are known to be abel to crash Python. What is the
point of your bug report? If you are able to execute untrusted .pyc, you
can already execute arbitrary code, no?

IMHO we should document the limitation of the security of CPython.

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[issue10839] email module should not allow some header field repetitions

[Raymond Hettinger]

Raymond Hettinger added the comment:

I think we should consider this as an API design bug and backport the fix.

This seems to be the exact cause of this week's email address leak at 
LetsEncrypt:  

* 
https://community.letsencrypt.org/t/email-address-disclosures-preliminary-report-june-11-2016/16867

* https://news.ycombinator.com/item?id=11881704

* https://twitter.com/TvdW/status/741482093054550016

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priority: normal -> high
status: closed -> open
versions: +Python 2.7 -Python 3.3

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[issue27288] secrets should use getrandom() on Linux

[Brett Cannon]

Brett Cannon added the comment:

It should be mentioned that Guido really doesn't like the idea of 
os.getrandom() as it exposes stuff where we would rather simply tell people to 
use the secrets module.

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[issue27288] secrets should use getrandom() on Linux

[Tim Peters]

Tim Peters added the comment:

I think it's clear Guido would say "#1".  The thrust of all his comments to 
date is that it was a mistake to change the semantics of os.urandom() on Linux 
(and one other platform? don't really care), and that in 3.6+ only `secrets` 
should _try_ to supply possibly-blocking behavior on Linux.

Indeed, even in 3.6+ he doesn't want to expose the new-ish getrandom() 
directly.  Today he said:

"""
So what should the secrets module use? Let's make that part an extension module.
"""

So he feels strongly enough about this as to recommend a teensy private C 
extension module for secrets.py alone to get at the platform getrandom() (if 
any - of course it needs to fall back to os.urandom() on other platforms).

"""
The main thing that I want to avoid is that people start cargo-culting whatever 
the secrets module uses rather than just using the secrets module. Having it 
redundantly available as os.getrandom() is just begging for people to show off 
how much they know about writing secure code. 
"""

Whenever he starts taking that tone, his mind is made up for good ;-)

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[issue27298] redundant iteration over digits in _PyLong_AsUnsignedLongMask

[Oren Milman]

Changes by Oren Milman :


Added file: http://bugs.python.org/file43347/patchedCPythonTestOutput.txt

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[issue27298] redundant iteration over digits in _PyLong_AsUnsignedLongMask

[Serhiy Storchaka]

Changes by Serhiy Storchaka :


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[issue27298] redundant iteration over digits in _PyLong_AsUnsignedLongMask

[Oren Milman]

New submission from Oren Milman:

 current state 
1. In Objects/longobject.c in _PyLong_AsUnsignedLongMask, in case v is a 
multiple-digit int, _PyLong_AsUnsignedLongMask iterates over all of its digits 
(going from the most to the least significant digit) and does (for each digit) 
'x = (x << PyLong_SHIFT) | v->ob_digit[i];'.
However, iterating over digits other than the 'ceil(sizeof(x) * 8.0 / 
PyLong_SHIFT)' least significant digits is redundant, because their bits would 
be shifted out of x anyway.

With regard to relevant changes made in the past, the iteration over all of the 
digits of a multiple-digit v remained quite the same since 
_PyLong_AsUnsignedLongMask was added, in revision 28652.

2. In Modules/_testcapimodule.c, the function comment of test_k_code, and an 
error string inside that function, contain mistakes.

With regard to relevant changes made in the past, these mistakes were there 
since test_k_code was added, in revision 28652.


 proposed changes 
1. In _PyLong_AsUnsignedLongMask, in case v is a multiple-digit int, iterate 
only over the 'Py_MIN(i, sizeof(x) * 8 / PyLong_SHIFT + 1)' least significant 
digits.

Obviously, 'sizeof(x) * 8 / PyLong_SHIFT + 1' might be off by one in case 
CPython is compiled with a PyLong_SHIFT other than 15 or 30. I suspect it's an 
overkill, but I added an assert, just in case.

2. Fix the function comment of test_k_code, and an error string inside that 
function.


 alternative changes 
1. I have also considered iterating only over the 'Py_MIN(i, 
(Py_ssize_t)ceil(sizeof(x) * 8.0 / PyLong_SHIFT))' least significant digits. 
Even though this number of digits is guaranteed to be accurate, it cannot be 
calculated at compile time, so it would probably cause the optimization to 
overall introduce a performance penalty.


 diff 
The proposed patches diff file is attached.


 tests 
I built the patched CPython for x86, and played with it a little. Everything 
seemed to work as usual. 

In addition, I ran 'python_d.exe -m test -j3' (on my 64-bit Windows 10) with 
and without the patches, and got quite the same output.
The outputs of both runs are attached.

--
components: Interpreter Core
files: proposedPatches.diff
keywords: patch
messages: 268274
nosy: Oren Milman
priority: normal
severity: normal
status: open
title: redundant iteration over digits in _PyLong_AsUnsignedLongMask
type: performance
Added file: http://bugs.python.org/file43346/proposedPatches.diff

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[issue27294] Better repr for Tkinter event objects

[Roundup Robot]

Roundup Robot added the comment:

New changeset 61a92a102b2d by Serhiy Storchaka in branch 'default':
Issue #27294: Improved repr for Tkinter event objects.
https://hg.python.org/cpython/rev/61a92a102b2d

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[issue27298] redundant iteration over digits in _PyLong_AsUnsignedLongMask

[Oren Milman]

Changes by Oren Milman :


Added file: http://bugs.python.org/file43348/CPythonTestOutput.txt

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[issue27291] two heap corruption issue

[Park Alex]

Park Alex added the comment:

all of .pyc files had been altered by fuzzer.

original py code is following:

$ cat helloworld.py
def hello(s=0x4142434445464748):
print s
if type(s) == str:
print s.encode('hex')
print repr(s)
else:
s = str(s)
print len(s) << 8, len(s) ^ 8, len(s) | 8, len(s) & 8, len(s) == 8, len(s) 
<= 8, len(s) >= 8
x = __import__("sys")

#for k, v in x.__dict__.items():
#if hasattr(v, '__subclasses__') == True:
#cmd = "Subclasses:", 
(v.__class__.__base__.__subclasses__()[11].__init__.__str__())

return 0x5152535455565758 == max(s, abs(len(s)) % 0x1234)

H = 'A'*128
hello(H.encode('base64'))
hello()

plus, python compiled with ASAN generated .pyc code.
After that, fuzzer found a few crashes.

Here are some diff information between original pyc and fuzzed pyc.
file: poc_heap-buffer-overflow.pyc
cmp -bl helloworld.pyc poc_heap-buffer-overflow.pyc | gawk '{printf "%08X %02X 
%02X\n", $1, strtonum(0$2), strtonum(0$4)}'
0010 00 03
0012 03 00
0026 01 00
0027 00 F7
006A 06 EE
006B 00 FF
006C 00 FF
006D 00 FF
0129 01 FE
012A 00 FF
012B 64 00
012C 04 00
01F0 6C DB
01FD 6C 49

file: poc_heap-use-after-free.pyc 
cmp -bl helloworld.pyc poc_heap-use-after-free.pyc | gawk '{printf "%08X %02X 
%02X\n", $1, strtonum(0$2), strtonum(0$4)}'
006A 06 D0
006B 00 FF
006C 00 FF
006D 00 FF
0129 01 EB
012A 00 FF
012B 64 00
012C 04 00
01F0 6C DB
01FD 6C 49
026F 6C 7D

Thanks,
-- Alex

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[issue27140] Opcode for creating dict with constant keys

[Benjamin Peterson]

Benjamin Peterson added the comment:

Okay, I think it's fine then. However, you have a for loop in 
compiler_subkwargs which only executes once.

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[issue27294] Better repr for Tkinter event objects

[Terry J. Reedy]

Terry J. Reedy added the comment:

Right.  This is why I suggested leaving anything we are not sure of to a later 
patch, after gaining more experience (and thought).

However, 'state' behaved strangely in my experiments.  In a sequence of about 
900 events, it started as 8 (Left Alt according to Shipman, but I never touched 
the key) and changed to 0 here







back to 8 here





and briefly back to 0 here






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[issue22253] ConfigParser does not handle files without sections

[Pedro Lacerda]

Pedro Lacerda added the comment:

I also never found a mixture of sectionless options followed by sectioned 
options. So an unnamed section that is also the DEFAULTSECTION will probably 
work.

In this patch when `default_section=None` is passed to `RawConfigParser` it 
will parse top level options into the default section and skip writing its 
title.

As drawback, default options is not showed in `options()` or `has_section()` 
reducing it usefulness. It works with `items()` and `keys()` however.

> Using DEFAULTSECT for this purpose is equally wrong since it would
> silently inject default values to every section

I disagree with that because I really *never* found in wild a file where it 
will happen.

> All in all, it comes down to the question whether the programmer
> expects section-less configuration. If not, the '' section will not be 
> helpful anyway. If yes, then it's desirable to be able to specify a
> section name for global options at *read time*.

Pass a name at read time will improve the API as `sections()` and 
`has_section()` will work as usual and not like a DEFAULTSECTION.

Please look my patch and tell if it's acceptable, if you prefer that a section 
name must be given at read and write time we can manage it.

It's my first post in this tracker and I'm very glad that I got it working even 
if not merged!

--
keywords: +patch
nosy: +Pedro Lacerda
versions:  -Python 3.5
Added file: http://bugs.python.org/file43345/nosection.patch

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[issue27291] two heap corruption issue

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

poc.zip contains only precompiled files. Could you please provide source files?

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[issue27291] two heap corruption issue

[Raymond Hettinger]

Changes by Raymond Hettinger :


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[issue27295] heaps library does not have support for max heap

[Raymond Hettinger]

Raymond Hettinger added the comment:

Sorry James, we don't grow the APIs without sufficient demonstrated need; 
otherwise, we end-up with API sprawl.  People with actual use cases haven't 
requested behavior (and the occasional one-off gets by negating the numeric 
argument).  That is why the maxheap functions were intentionally made private.

FWIW, this module is very old and the core functions have long proven 
themselves sufficient to meet their use cases (like being used in an event loop 
to efficiently select the next scheduled event).

--
resolution:  -> rejected
status: open -> closed

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pytz and Python timezones

[Johannes Bauer]

Hi there,

first off, let me admit that I have a hard time comprehensively wrapping
my head around timezones. Everything around them is much more
complicated than it seems, IMO. That said, I'm trying to do things the
"right" way and stumbled upon some weird issue which I can't explain.
I'm unsure what is happening here. I try to create a localized timestamp
in the easiest possible way. So, intuitively, I did this:

datetime.datetime(2016,1,1,0,0,0,tzinfo=pytz.timezone("Europe/Berlin"))

Which gives me:

datetime.datetime(2016, 1, 1, 0, 0, tzinfo=)

Uh... what?

This here:

pytz.timezone("Europe/Berlin").localize(datetime.datetime(2016,1,1))

Gives me the expected result of:

datetime.datetime(2016, 1, 1, 0, 0, tzinfo=)

Can someone explain what's going on here and why I end up with the weird
"00:53" timezone? Is this a bug or am I doing things wrong?

Thanks,
Cheers,
Johannes

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>> Wo hattest Du das Beben nochmal GENAU vorhergesagt?
> Zumindest nicht öffentlich!
Ah, der neueste und bis heute genialste Streich unsere großen
Kosmologen: Die Geheim-Vorhersage.
 - Karl Kaos über Rüdiger Thomas in dsa 
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[issue26556] Update expat to 2.2.1

[Roundup Robot]

Roundup Robot added the comment:

New changeset d8a0a016d8d4 by Benjamin Peterson in branch '2.7':
upgrade expt to 2.1.1 (closes #26556)
https://hg.python.org/cpython/rev/d8a0a016d8d4

New changeset bb3ce78572f5 by Benjamin Peterson in branch '3.4':
upgrade expt to 2.1.1 (closes #26556)
https://hg.python.org/cpython/rev/bb3ce78572f5

New changeset f3c36afdedae by Benjamin Peterson in branch '3.5':
merge 3.4 (#26556)
https://hg.python.org/cpython/rev/f3c36afdedae

New changeset 77353f0106cc by Benjamin Peterson in branch 'default':
merge 3.5 (#26556)
https://hg.python.org/cpython/rev/77353f0106cc

--
nosy: +python-dev
resolution:  -> fixed
stage: needs patch -> resolved
status: open -> closed

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[issue27294] Better repr for Tkinter event objects

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

The key state can be interesting for mouse events too. Ctrl-Click, Shift-Move. 
Maybe it is worth to omit the output of state=0.

Agreed, the 4 mouse positions are pretty noisy. Maybe omit root_x and root_y? 
But mouse position can be relevant for such key events as pressing Ctrl. For 
example if the mouse pointer points on module name in import statement, 
pressing Ctrl can convert the name into a hyperling to a file of the module.

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[issue5124] IDLE - pasting text doesn't delete selection

[Terry J. Reedy]

Terry J. Reedy added the comment:

Oh right, requires('gui') does not work at module level in 2.7.
This should fix.  Will try to check next round of bot builds.

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[issue5124] IDLE - pasting text doesn't delete selection

[Roundup Robot]

Roundup Robot added the comment:

New changeset 274308a3b8b6 by Terry Jan Reedy in branch '2.7':
Issue #5124: For 2.7, move requires('gui') from module level to setUpClass.
https://hg.python.org/cpython/rev/274308a3b8b6

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[issue27294] Better repr for Tkinter event objects

[Terry J. Reedy]

Terry J. Reedy added the comment:

Summary: Though I would like to see some refinements, this looks really useful 
as is and I would like it applied soon even if refinements have to wait for a 
second patch.

Moving the window did not generate a printed event.

I like the compact way of handling customization.  Two more possible 
exclusions: 1. The key state seems like it should only be interesting for key 
events.  2. The 4 mouse positions are pretty noisy and seem not relevant to key 
events, and to many other non-mouse events.

I wish "VirtualEvent event"s had the triggering sequence available, but you 
cannot change that.
.

--
stage: patch review -> commit review

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[issue27277] Fatal Python error: Segmentation fault in test_exceptions

[Rohit Mediratta]

Rohit Mediratta added the comment:

It's set to 1000, I didnt change during install, so it's likely set to the 
default value.

>>> import sys
>>> sys.getrecursionlimit()
1000


I also have a lot of memory free (87G) to run scripts (should be able to handle 
without running into issues)

[/loc/rom/pyd/cpython] $ free -m
 total   used   free sharedbuffers cached
Mem: 96870   9849  87021  0716   7512
-/+ buffers/cache:   1620  95250
Swap:0  0  0

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[issue26565] [ctypes] Add value attribute to non basic pointers.

[Memeplex]

Memeplex added the comment:

Martin, there were two reasons:

1. Conciseness: addressof(p.contents) vs. p.value.
2. Uniformity: I expect the value of a pointer to be the address it points to.

Then Eryk pointed out that p.value has already another meaning for simple 
pointer types, so (2) can't be fully achieved and for (1) it will be necessary 
to pick another attribute name. But we could still get something shorter and 
uniform inside the subset of pointer types.

p.as_void makes me expect a c_void_p instance. In that case the address will be 
p.as_void.value (or p.as_void().value?), which is a bit indirect. I think 
p.toaddress conveys the exact meaning[1] and consistently follows the naming 
style of addressof, besides being slightly shorter.


[1] Well, toaddress might mean "get the pointed-to address" or "convert from 
pointer to address", but in any case the meaning is right.

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[issue20508] IndexError from ipaddress._BaseNetwork.__getitem__ has no message

[Gareth Rees]

Gareth Rees added the comment:

Thank you for applying this patch.

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[issue5124] IDLE - pasting text doesn't delete selection

[Ned Deily]

Ned Deily added the comment:

Terry, the 2.7 version of the test changes is causing buildbot and test_idle 
failures when the "gui" condition is not met. See, for example, 
http://buildbot.python.org/all/builders/AMD64%20Snow%20Leop%202.7/builds/1400.

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status: closed -> open

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[issue27297] Add support for /dev/random to "secrets"

[Donald Stufft]

Donald Stufft added the comment:

> It's just that the manpage for urandom (and in fact the comments in the 
> source code for /dev/random and /dev/urandom) both recommend using 
> /dev/random for these long-lived cryptographic keys. 

It's a hedge because of the bad behavior of /dev/urandom on early boot in a 
situation where it's highly unlikely that the randomly blocking behavior of 
/dev/random is going to matter.

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[issue27294] Better repr for Tkinter event objects

[Terry J. Reedy]

Terry J. Reedy added the comment:

Testing now.

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[issue27025] More human readable generated widget names

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

Patch updated.

1. The prefix "0" is used for generated names. This keeps the old rule 
(generated names start from a digit and are not valid Python identifier) and 
looks less striking than "_".

2. Lowercased Python class name is used as a base name for generated name.

3. Numbering is separate for every type and every parent widget.

4. Numerical suffix is not used for the first (often the single) child of every 
type.

--
Added file: http://bugs.python.org/file43344/tkinter_names2.patch

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