[issue30301] multiprocessing: AttributeError: 'SimpleQueue' object has no attribute '_poll'

[Xiang Zhang]

Xiang Zhang added the comment:

Related commit is bdb1cf1ca56db25b33fb15dd91eef2cc32cd8973. A simple reproduce 
snippet:

import multiprocessing as mp

def foo(q):
q.put('hello')
assert not q.empty()

if __name__ == '__main__':
mp.set_start_method('spawn')
q = mp.SimpleQueue()
p = mp.Process(target=foo, args=(q,))
p.start()
print(q.get())
p.join()

--
nosy: +xiang.zhang
stage:  -> patch review
type: crash -> behavior
versions: +Python 3.5, Python 3.7

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[issue30301] multiprocessing: AttributeError: 'SimpleQueue' object has no attribute '_poll'

[Xiang Zhang]

Changes by Xiang Zhang :


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[issue30374] Make win_add2path.py take effect without having to log off

[neeverett]

neeverett added the comment:

I think the original author adds the relative path "%APPDATA%..." with the 
intention to keep it effective even when the set path of APPDATA changes. 
However that compulsively changes the type of PATH var to REG_EXPAND_SZ.

It is reasonable that the type of PATH var should not be changed. So I think 
when the type is REG_SZ, not adding the %APPDATA% path and instead adding the 
absolute path of it should be a good idea.

I just modified my PR and fixed it this way, along with other problems that 
Eryk Sun mentioned.

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[issue30323] concurrent.futures.Executor.map() consumes all memory when big generators are used

[Klamann]

Klamann added the comment:

Thanks for pointing this out.
*closed*

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

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[issue29842] Make Executor.map work with infinite/large inputs correctly

[Klamann]

Changes by Klamann :


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[issue29898] PYTHONLEGACYWINDOWSIOENCODING isn't implemented

[Berker Peksag]

Berker Peksag added the comment:


New changeset 87fa8a780e9045a26c735f085c07bba4b2d0be60 by Berker Peksag in 
branch 'master':
bpo-29898: Fix incorrect env variable name (GH-1576)
https://github.com/python/cpython/commit/87fa8a780e9045a26c735f085c07bba4b2d0be60


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[issue30323] concurrent.futures.Executor.map() consumes all memory when big generators are used

[Berker Peksag]

Changes by Berker Peksag :


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superseder:  -> Make Executor.map work with infinite/large inputs correctly

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[issue29898] PYTHONLEGACYWINDOWSIOENCODING isn't implemented

[Berker Peksag]

Changes by Berker Peksag :


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[issue23667] IDLE to provide option for making trailing whitespace visible

[Louie Lu]

Changes by Louie Lu :


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[issue23667] IDLE to provide option for making trailing whitespace visible

[Louie Lu]

Changes by Louie Lu :


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[issue23667] IDLE to provide option for making trailing whitespace visible

[Louie Lu]

Louie Lu added the comment:

PR 1602 add trailing whitespace highlight, which using color from error.

PR 1603 add TrimExtension to provide auto trim while saving the file.

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[issue30375] Correct stacklevel of warnings when compile regular expressions

[Serhiy Storchaka]

Serhiy Storchaka added the comment:


New changeset c7ac7280c321b3c1679fe5f657a6be0f86adf173 by Serhiy Storchaka in 
branch 'master':
bpo-30375: Correct the stacklevel of regex compiling warnings. (#1595)
https://github.com/python/cpython/commit/c7ac7280c321b3c1679fe5f657a6be0f86adf173


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[issue30375] Correct stacklevel of warnings when compile regular expressions

[Serhiy Storchaka]

Changes by Serhiy Storchaka :


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[issue30375] Correct stacklevel of warnings when compile regular expressions

[Serhiy Storchaka]

Changes by Serhiy Storchaka :


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[issue30375] Correct stacklevel of warnings when compile regular expressions

[Serhiy Storchaka]

Changes by Serhiy Storchaka :


--
versions: +Python 2.7

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[issue29710] Incorrect representation caveat on bitwise operation docs

[Nick Coghlan]

Nick Coghlan added the comment:

I think the simplest fix to make the docs "not wrong" would be to just delete 
the part in parentheses.

Beyond that, I'm not quite sure how to concisely describe the actual behaviour, 
but I think the mention of "2's complement" isn't especially helpful in its 
current form, since we don't give a clear sense of how the translation from an 
arbitrary length integer to a suitable 2's complement form is handled.

For `~n`, the most concise explanation is the arithmetic equivalent: it is 
always implemented as `-(n+1)`

Similarly, for `x << n` and `x >> n`, they're now exactly equivalent to `x * 2 
** n` and `x // 2 ** n` without any overflow checking or internal 
representation qualification (as even in Python 2.x, left-shift will 
automatically promote to a long when needed)

For `x | y` and `x & y`, things are a little more subtle, since that's where 
the internal 2's complement representation comes into play, but you can't just 
write out the formal definition of 2's complement at the Python level and get 
the same answer as is given by the binary operators:

>>> -5 & 5
1
>>> -5 | 5
-1

>>> (~-5 + 1) & 5 # Effectively '5 & 5'
5
>>> (~-5 + 1) | 5 # Effectively '5 | 5'
5

>>> -5 | (~5+1) # Effectively '-5 & -5'
-5
>>> -5 & (~5+1) # Effectively '-5 | -5'
-5


The problem here is that the sign bits of the operands matter a great deal, 
since they affect the sign expansion in the conversion to the 2's complement 
form, but that detail gets lost if the conversion is done prior to the bitwise 
binary operator invocation.

One way to get the same results as the interpreter level algorithms is to use a 
2's complement bit length of `1 + max(x.bit_length(), y.bit_length()`, so the 
equivalent operations become:

>>> bin(0b1011 & 0b0101) # -5 & 5 -> 1 in 4 bit 2's complement
'0b1'
>>> bin(0b1011 | 0b0101) # -5 | 5 -> -1 in 4 bit 2's complement
'0b'

So perhaps a helpful change to make would be to move the note about negative 
numbers to a numbered footnote in the table, and state that the bitwise binary 
operations are semantically equivalent to calculations using two's complement 
in a bit-width of `1 + max(x.bit_length(), y.bit_length()`.

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[issue30377] Unnecessary complexity in tokenize.py around handling of comments and newlines

[Albert-Jan Nijburg]

New submission from Albert-Jan Nijburg:

While porting tokenize.py to javascript I stumbled upon this. The bit of code 
that checks if it's a newline or a comment, checks for comment twice. These can 
be split up, this way the code is a bit more readable. 

https://github.com/python/cpython/blob/master/Lib/tokenize.py#L560

It's not broken, it's just a bit more complex then it has to be.

--
components: Library (Lib)
messages: 293760
nosy: Albert-Jan Nijburg, meador.inge
priority: normal
severity: normal
status: open
title: Unnecessary complexity in tokenize.py around handling of comments and 
newlines
type: enhancement
versions: Python 2.7, Python 3.3, Python 3.4, Python 3.5, Python 3.6, Python 3.7

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[issue30195] writing non-ascii characters in xml file using python code embedded in C

[mahboubi]

mahboubi added the comment:

problem solved, It's not related to embedding python in C, Ijust had to use 
mystring.decode('utf-8') instead of unicode(mystring,"utf-8")

--
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status: open -> closed

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[issue30377] Unnecessary complexity in tokenize.py around handling of comments and newlines

[Roundup Robot]

Changes by Roundup Robot :


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[issue18299] Change script_helper to use universal_newlines=True in _assert_python

[Pranav Deshpande]

Pranav Deshpande added the comment:

Hello, I would like to work on this issue. Could you guide me on so as how to 
proceed with this?

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[issue30211] Bdb: add docstrings

[Cheryl Sabella]

Cheryl Sabella added the comment:

Thank you.  I had some questions that I put on the commit.

You're right about it saying it must be in canonic form and then it calls 
canonic.  I figured someone added the call later to prevent an error, but 
didn't change the warning, but I didn't know if I should change it.

I added a comment about get_stack on github.  I know I'm missing something 
here, but I had trouble documenting that because it didn't look like it was 
doing what the doc said.

I'm not at my regular computer this week, so I can't add any changes until 
Saturday.  I'll do the is_skipped_module doc then.

Thank you for the edits on the other docstrings.  They make a lot more sense 
now.  Although I still don't like the user_* ones.  I hadn't changed them from 
the original before, but it feels like they should say something else, like 
what's expected of them.  The test example within bdb.py helped me understand 
what can be done with them.

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[issue30378] SysLogHandler does not support IPv6 destinations

[Calvin Cheng]

New submission from Calvin Cheng:

The attached test script works fine with IPv4 syslog:
$ python test_syslog.py 192.168.1.4
(no errors reported)

When running the attached script with python 3.5.2 on Ubuntu 16.04, received 
the following error:

$ python3 test_syslog.py ::1
--- Logging error ---
Traceback (most recent call last):
  File "/usr/lib/python3.5/logging/handlers.py", line 908, in emit
self.socket.sendto(msg, self.address)
socket.gaierror: [Errno -9] Address family for hostname not supported
Call stack:
  File "test_syslog.py", line 16, in 
logging.info("Test Syslog with IPv6")
Message: 'Test Syslog with IPv6'
Arguments: ()

Similar error in python 2.7.10:

$ python test_syslog.py ::1
Traceback (most recent call last):
  File "/usr/lib/python2.7/logging/handlers.py", line 864, in emit
self.socket.sendto(msg, self.address)
gaierror: [Errno -9] Address family for hostname not supported
Logged from file test_syslog.py, line 16

--
components: Library (Lib)
files: test_syslog.py
messages: 293764
nosy: Calvin Cheng
priority: normal
severity: normal
status: open
title: SysLogHandler does not support IPv6 destinations
type: behavior
versions: Python 3.5
Added file: http://bugs.python.org/file46865/test_syslog.py

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[issue30379] multiprocessing Array create for ctypes.c_char, TypeError unless 1 char string arg used

[John Schaefer]

New submission from John Schaefer:

When creating a multiprocessing Array equivalent for unsigned chars, eg from a 
numpy.uint8 array, the first argument: typecode_or_type must be specified as a 
one character string, if a typecode is used the method raises a TypeError.

>>> import numpy as np, multiprocessing as mp, ctypes
>>> arr = np.array(range(10), dtype=np.uint8)
>>> arr
array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9], dtype=uint8)
>>> mp.Array("B", arr)
>> mp.Array(ctypes.c_char, arr)
Traceback (most recent call last):
  File "", line 1, in 
  File "/usr/lib/python2.7/multiprocessing/__init__.py", line 260, in Array
return Array(typecode_or_type, size_or_initializer, **kwds)
  File "/usr/lib/python2.7/multiprocessing/sharedctypes.py", line 120, in Array
obj = RawArray(typecode_or_type, size_or_initializer)
  File "/usr/lib/python2.7/multiprocessing/sharedctypes.py", line 94, in 
RawArray
result.__init__(*size_or_initializer)
TypeError: one character string expected

This contrasts with behavior exhibited with other types:
>>> farr = np.array(range(10), dtype=np.float)
>>> mp.Array(ctypes.c_double, farr)


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[issue30379] multiprocessing Array create for ctypes.c_char, TypeError unless 1 char string arg used

[Davin Potts]

Davin Potts added the comment:

Maybe I missed your point but why would you not want to do this instead?

>>> mp.Array(ctypes.c_int8, arr)
>

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[issue30195] writing non-ascii characters in xml file using python code embedded in C

[Xiang Zhang]

Changes by Xiang Zhang :


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resolution:  -> not a bug

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[issue30379] multiprocessing Array create for ctypes.c_char, TypeError unless 1 char string arg used

[Davin Potts]

Davin Potts added the comment:

Perhaps I should've used ctypes.c_uint8 in that example/question instead.

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[issue30375] Correct stacklevel of warnings when compile regular expressions

[Serhiy Storchaka]

Serhiy Storchaka added the comment:


New changeset 73fb45df0487144765808c5d25914c67232d83fe by Serhiy Storchaka in 
branch '3.6':
[3.6] bpo-30375: Correct the stacklevel of regex compiling warnings. (GH-1595) 
(#1604)
https://github.com/python/cpython/commit/73fb45df0487144765808c5d25914c67232d83fe


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[issue30375] Correct stacklevel of warnings when compile regular expressions

[Serhiy Storchaka]

Serhiy Storchaka added the comment:


New changeset 24b5ed230df65f6a1f9d8dd0c4409377576113d9 by Serhiy Storchaka in 
branch '3.5':
[3.5] bpo-30375: Correct the stacklevel of regex compiling warnings. (GH-1595) 
(#1605)
https://github.com/python/cpython/commit/24b5ed230df65f6a1f9d8dd0c4409377576113d9


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[issue25324] Importing tokenize modifies token

[Albert-Jan Nijburg]

Changes by Albert-Jan Nijburg :


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pull_requests: +1699

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[issue30377] Unnecessary complexity in tokenize.py around handling of comments and newlines

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

The code is correct, it just can be made cleaner. No need to backport the 
change to other versions.

The line "if line[pos] in '#\r\n':" looks a kind of optimization. In common 
case (not a newline and not a comment) there is only one check. The expression 
"(NL, COMMENT)[line[pos] == '#']" is redundant of course, it can be replaced by 
just "NL". Note that now the line that yields yield TokenInfo(NL, ...) is 
almost the same for comments and newlines. If rename nl_pos to pos the same 
line can be used in both cases.

--
nosy: +serhiy.storchaka
versions:  -Python 2.7, Python 3.3, Python 3.4, Python 3.5, Python 3.6

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[issue30377] Unnecessary complexity in tokenize.py around handling of comments and newlines

[Serhiy Storchaka]

Changes by Serhiy Storchaka :


--
assignee:  -> serhiy.storchaka
stage:  -> patch review

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[issue29898] PYTHONLEGACYWINDOWSIOENCODING isn't implemented

[Berker Peksag]

Changes by Berker Peksag :


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pull_requests: +1700

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[issue30353] ctypes: pass by value for structs broken on Cygwin/MinGW 64-bit

[Iryna Shcherbina]

Iryna Shcherbina added the comment:

I have added `defined(__aarch64__)` check to the if statement and tested the 
patch on arm64. The test passed.

So could you please also add the check for `defined(__aarch64__)` to the pull 
request so that it fixes #29804 as well?

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[issue30377] Unnecessary complexity in tokenize.py around handling of comments and newlines

[Albert-Jan Nijburg]

Albert-Jan Nijburg added the comment:

Oh yes you're right! I've updated the code on github. Even cleaner this way :).

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[issue30372] Status of __builtins__ is not totally clear

[Brett Cannon]

Brett Cannon added the comment:

You're correct that both are CPython implementation details and could be more 
clearly marked as such.

(In case anyone is curious, the code to look up __import__() can be found at 
https://github.com/python/cpython/blob/c7ac7280c321b3c1679fe5f657a6be0f86adf173/Python/ceval.c#L4991
 .)

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[issue30301] multiprocessing: AttributeError: 'SimpleQueue' object has no attribute '_poll'

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

LGTM. But can you convert the reproducer to a test?

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[issue30378] SysLogHandler does not support IPv6 destinations

[Calvin Cheng]

Changes by Calvin Cheng :


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nosy: +Calvin Cheng -calcheng

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[issue30378] SysLogHandler does not support IPv6 destinations

[Calvin Cheng]

Changes by Calvin Cheng :


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nosy: +calcheng -Calvin Cheng

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[issue30380] Sphinx 1.6.1 raising new warnings in docs build

[Brett Cannon]

New submission from Brett Cannon:

The Travis file uses `make venv` which does `python3 -m pip install --upgrade 
sphinx` which is pulling in Sphinx 1.6.1 which was released today (under Python 
2.7 the pip call is direct instead of using `make venv`). The problem is that 
Sphinx 1.6.1 adds some new warnings that then is flagging the docs build as 
failing.

To fix this we should probably stop calling `make venv` in .travis.yml and 
instead explicitly install Sphinx 1.5.6 for the docs build.

Once Travis is green again a separate PR can be done to update `master` to 
build cleanly under Sphinx 1.6.1.

--
assignee: docs@python
components: Documentation
messages: 293775
nosy: brett.cannon, docs@python
priority: critical
severity: normal
status: open
title: Sphinx 1.6.1 raising new warnings in docs build
versions: Python 2.7, Python 3.5, Python 3.6, Python 3.7

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[issue30380] Sphinx 1.6.1 raising new warnings in docs build

[Brett Cannon]

Brett Cannon added the comment:

Technically it's probably best to do `python3 -m pip install sphinx~=1.5.6` so 
bugfix releases are picked up.

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[issue30380] Sphinx 1.6.1 raising new warnings in docs build

[Mariatta Wijaya]

Changes by Mariatta Wijaya :


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[issue23667] IDLE to provide option for making trailing whitespace visible

[Terry J. Reedy]

Changes by Terry J. Reedy :


--
stage: needs patch -> patch review
versions: +Python 3.6, Python 3.7 -Python 2.7, Python 3.4, Python 3.5

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[issue30380] Sphinx 1.6.1 raising new warnings in docs build

[Serhiy Storchaka]

Changes by Serhiy Storchaka :


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pull_requests: +1702

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[issue30380] Sphinx 1.6.1 raising new warnings in docs build

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

PR 1613 tries to fix a warning by using explicit footnote numbering.

--
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[issue18233] SSLSocket.getpeercertchain()

[joernheissler]

joernheissler added the comment:

Hi,
I'd like to see this feature too.

My use case is a monitoring script to check the life time of the server 
certificate, including the chain. I would prefer to have a wrapper around 
SSL_get_peer_cert_chain.
I understand that this is *not* a verified chain. That's okay.

openssl-1.1 added a new function SSL_get0_verified_chain which may be safer for 
most applications. Is there any real difference to X509_STORE_CTX_get1_chain?

If you're worried about people misusing these functions, add a warning in the 
docs and point them to "get_peer_verified_chain"?

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[issue30380] Sphinx 1.6.1 raising new warnings in docs build

[Serhiy Storchaka]

Serhiy Storchaka added the comment:


New changeset d97b7dc94b19063f0589d401bdc4aaadc7030762 by Serhiy Storchaka in 
branch 'master':
bpo-30380: Fix Sphinx 1.6.1 warnings. (#1613)
https://github.com/python/cpython/commit/d97b7dc94b19063f0589d401bdc4aaadc7030762


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[issue30380] Sphinx 1.6.1 raising new warnings in docs build

[Serhiy Storchaka]

Changes by Serhiy Storchaka :


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[issue30380] Sphinx 1.6.1 raising new warnings in docs build

[Serhiy Storchaka]

Changes by Serhiy Storchaka :


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[issue30380] Sphinx 1.6.1 raising new warnings in docs build

[Serhiy Storchaka]

Changes by Serhiy Storchaka :


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[issue24960] Can't use lib2to3 with embeddable zip file.

[Kirk Sayre]

Kirk Sayre added the comment:

I've been fighting with this issue today trying to import networkx in the 
embedded Python shipped with IDA-Pro. I have implemented a local fix to pgen.py 
that allows networkx to import and be used in IDAPython scripts. I added a 
check to see if a .zip archive appears in the path of the file loaded in the 
constructor and if so I use the zipfile package to open the archived file 
rather than the standard file open() function.

I've uploaded the modified pgen.py in case any one is interested.

--
nosy: +kirk.d.sayre
versions: +Python 2.7 -Python 3.5
Added file: http://bugs.python.org/file46866/pgen.py

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[issue30368] [2.7] OpenSSL compilation fails on AMD64 Windows7 SP1 VS9.0 2.7

[STINNER Victor]

STINNER Victor added the comment:

I don't really care if Jeremy installs Perl on the buildbot or if someone 
succeed to fix the dependency on the svn repository. I only care of seeing a 
green buildbot ;-)

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[issue30211] Bdb: add docstrings

[Terry J. Reedy]

Terry J. Reedy added the comment:

I plan to merge when I can.  Possible future improvements for bdb.py.

1. Bdb attributes.
2. Say what user_xyz functions might do.  Anything better than 'Intervene in 
debugging process.'?
3. Clarify what get_stack does.

Improvement for bdb.rst (optional for this issue).
1. Add is_skipped_module
2. Fix overt errors we are sure of, noted above
* canonic: <> not stripped
* break_here: temps *may* be deleted
* get_stack: length may or may not be what says.

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[issue30380] Sphinx 1.6.1 raising new warnings in docs build

[Brett Cannon]

Brett Cannon added the comment:


New changeset fca224f117d25bdfec1bf7160b67438c4fcf6dee by Brett Cannon 
(Mariatta) in branch 'master':
bpo-30380: Pin the version of Sphinx used to build the documentation (GH-1612)
https://github.com/python/cpython/commit/fca224f117d25bdfec1bf7160b67438c4fcf6dee


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[issue30368] [2.7] OpenSSL compilation fails on AMD64 Windows7 SP1 VS9.0 2.7

[Zachary Ware]

Zachary Ware added the comment:

The simple fix from my point of view is for Jeremy to install Perl :).  But 
since he also mentioned having a patch ready in bpo-30350, I'd like to see it 
before declaring that installing Perl is what should be done.

--
assignee: christian.heimes -> 

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[issue9850] obsolete macpath module dangerously broken and should be removed

[STINNER Victor]

STINNER Victor added the comment:

Ok, I don't see any open task anymore, so I close this issue.

The macpath may or may not be removed in Python 3.8, so not before 2018-01-29. 
IMHO it's ok to remove the module, macpath was used for MacOS 9, but all macOS 
users are now running macOS X. Otherwise, you can simply use an older Python 
version (like the future Python 3.7 ;-)). We can discuss the effective macpath 
removal later, when master will become Python 3.8.

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

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[issue30380] Sphinx 1.6.1 raising new warnings in docs build

[Brett Cannon]

Changes by Brett Cannon :


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[issue25324] Importing tokenize modifies token

[STINNER Victor]

STINNER Victor added the comment:

> I would fix this by making tokenize.tok_name a copy. It looks like this 
> behaviour dates back to 1997 (see revision 1efc4273fdb7).

token.tok_name is part of the Python public API:
https://docs.python.org/dev/library/token.html#token.tok_name

whereas tokenize.tok_name isn't documented. So I dislike having two 
disconnected mappings. I prefer to add tokenize tokens directly in 
Lib/token.py, and then get COMMENT, NL and ENCODING using tok_name.index().

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[issue30380] Sphinx 1.6.1 raising new warnings in docs build

[Brett Cannon]

Changes by Brett Cannon :


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[issue25324] Importing tokenize modifies token

[STINNER Victor]

STINNER Victor added the comment:

Extract of Lib/lib2to3/pgen2/driver.py:

if type in (tokenize.COMMENT, tokenize.NL):
...
if debug:
self.logger.debug("%s %r (prefix=%r)",
  token.tok_name[type], value, prefix)

The code uses tokenize.COMMENT and look for this constant into token.tok_name. 
If token.tok_name doesn't contain COMMENT anymore, it breaks lib2to3, no? At 
least the debug mode which might not be covered by test_lib2to3.

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[issue30380] Sphinx 1.6.1 raising new warnings in docs build

[Serhiy Storchaka]

Serhiy Storchaka added the comment:


New changeset 8fc1ff51adb52c80f6bf78393413c72543bae3e1 by Serhiy Storchaka in 
branch '3.6':
[3.6] bpo-30380: Fix Sphinx 1.6.1 warnings. (GH-1613) (#1614)
https://github.com/python/cpython/commit/8fc1ff51adb52c80f6bf78393413c72543bae3e1


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[issue25324] Importing tokenize modifies token

[STINNER Victor]

STINNER Victor added the comment:

Another example from Tools/i18n/pygettext.py, TokenEater::

def __call__(self, ttype, tstring, stup, etup, line):
# dispatch
##import token
##print >> sys.stderr, 'ttype:', token.tok_name[ttype], \
##  'tstring:', tstring
self.__state(ttype, tstring, stup[0])


...

eater.set_filename(filename)
try:
tokens = tokenize.tokenize(fp.readline)
for _token in tokens:
eater(*_token)

Another example using token.tok_name with token types coming from tokenize.

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[issue30038] Race condition in how trip_signal writes to wakeup fd

[STINNER Victor]

STINNER Victor added the comment:


New changeset 4ae01496971624c75080431806ed1c08e00f22c7 by Victor Stinner 
(Nathaniel J. Smith) in branch 'master':
bpo-30038: fix race condition in signal delivery + wakeup fd (#1082)
https://github.com/python/cpython/commit/4ae01496971624c75080431806ed1c08e00f22c7


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[issue30380] Sphinx 1.6.1 raising new warnings in docs build

[Brett Cannon]

Changes by Brett Cannon :


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[issue30038] Race condition in how trip_signal writes to wakeup fd

[STINNER Victor]

STINNER Victor added the comment:

While I suggest you to *not* use an event loop (wakeup fd pipe/socket handle 
with select) and signal.signal(), you are true that there is a race condition 
if you use select() with signal.signal() so I merged your change.

Do you consider that it's worth it to backport the change to 3.5 and 3.6?

Python 2.7 is not affected, right?

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[issue18299] Change script_helper to use universal_newlines=True in _assert_python

[STINNER Victor]

STINNER Victor added the comment:

I really hate script_helper API: keyword arguments are only used to pass 
environment variables, so the function uses hackish parameteres like 
__cleanenv=True...

I would prefer to pass keywords unchanged to Popen() to be able to use 
universal_newlines=True for example.

Since we have +10k tests, I suggest to not touch the existing API but add yet 
another API: a new function in support/script_helper.py.

What do you think?

--
nosy: +haypo

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[issue25324] Importing tokenize modifies token

[Albert-Jan Nijburg]

Albert-Jan Nijburg added the comment:

> I prefer to add tokenize tokens directly in Lib/token.py, and then get 
> COMMENT, NL and ENCODING using tok_name.index().

That would make more sense from a breaking change perspective, but we would 
step on the toes of anyone adding `COMMENT`, `NL`, or `ENCODING` to `token.h` 
because `token.py` is generated from that.

It would also make much more sense to have them as fields on `token` if they 
are in `tok_name` in `token`.

--
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[issue18299] Change script_helper to use universal_newlines=True in _assert_python

[STINNER Victor]

STINNER Victor added the comment:

> Even if there turn out to be a few uses where having bytes is required, it 
> would probably be worth catering to the common case and making those 
> exceptional cases use Popen directly.  (Or alternatively provide 
> assert_python_xxx_binary helpers.)

I would prefer the opposite: *always* use script_helper rather than Popen() 
directly in tests. We have to check why some tests use directly Popen?

I know that in test_faulthandler for example, I chose to use directly Popen 
because script_helper always enable faulthandler, there is no option to disable 
this behaviour, and as I wrote in my previous comment, it's a pain to extend 
the API (I don't want to use yet another __xxx custom keyword).

Maybe we need differently API levels in script helper, the lowest level would 
return a Popen object but add -I, -E and/or -X faulthandler.

By the way, I'm using more and more functions like the one I added to 
Lib/test/eintrdata/eintr_tester.py:

@contextlib.contextmanager
def kill_on_error(proc):
"""Context manager killing the subprocess if a Python exception is 
raised."""
with proc:
try:
yield proc
except:
proc.kill()
raise

Such helper should also be moved to script_helper.

For examle, in my perf project I have these two helper functions:

@contextlib.contextmanager
def popen_killer(proc):
try:
yield
except:
# Close pipes
if proc.stdin:
proc.stdin.close()
if proc.stdout:
proc.stdout.close()
if proc.stderr:
proc.stderr.close()
try:
proc.kill()
except OSError:
# process already terminated
pass
proc.wait()
raise


def popen_communicate(proc):
with popen_killer(proc):
return proc.communicate()


Or maybe we should add back these features directly into the subprocess module?

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[issue25324] Importing tokenize modifies token

[Albert-Jan Nijburg]

Albert-Jan Nijburg added the comment:

lib2to3 appears to have it's own token.py as well with NL and COMMENT withtout 
ENCODING... 

Lib/lib2to3/pgen2/token.py

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[issue30380] Sphinx 1.6.1 raising new warnings in docs build

[Brett Cannon]

Brett Cannon added the comment:


New changeset 5e2016dce92d66e6e1fb25e6ce39031d8c7d5412 by Brett Cannon in 
branch '3.6':
bpo-30380: Pin the version of Sphinx used to build the docs (GH-1612) (GH-1617)
https://github.com/python/cpython/commit/5e2016dce92d66e6e1fb25e6ce39031d8c7d5412


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[issue30380] Sphinx 1.6.1 raising new warnings in docs build

[Brett Cannon]

Brett Cannon added the comment:


New changeset 083f13e34c0b9f9ed4ed64fed3989d4af97843b3 by Brett Cannon (Serhiy 
Storchaka) in branch '3.5':
[3.5] bpo-30380: Fix Sphinx 1.6.1 warnings. (GH-1613) (GH-1615)
https://github.com/python/cpython/commit/083f13e34c0b9f9ed4ed64fed3989d4af97843b3


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[issue29898] PYTHONLEGACYWINDOWSIOENCODING isn't implemented

[Berker Peksag]

Changes by Berker Peksag :


--
resolution:  -> fixed
stage: backport needed -> resolved
status: open -> closed

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[issue29898] PYTHONLEGACYWINDOWSIOENCODING isn't implemented

[Berker Peksag]

Berker Peksag added the comment:


New changeset 0d267041c40a3ab655676b885c0ba35ed9685848 by Berker Peksag in 
branch '3.6':
bpo-29898: Fix incorrect env variable name (GH-1576)
https://github.com/python/cpython/commit/0d267041c40a3ab655676b885c0ba35ed9685848


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[issue25324] Importing tokenize modifies token

[STINNER Victor]

STINNER Victor added the comment:

> lib2to3 appears to have it's own token.py as well with NL and COMMENT 
> withtout ENCODING...

Oh you are right: Lib/lib2to3/pgen2/driver.py uses Lib/lib2to3/pgen2/token.py.

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[issue30380] Sphinx 1.6.1 raising new warnings in docs build

[Brett Cannon]

Brett Cannon added the comment:


New changeset 77606957e71ce477d2c5569718f0fc36f05c6f59 by Brett Cannon in 
branch '3.5':
bpo-30380: Pin the version of Sphinx used to build the documentation (GH-1612) 
(GH-1618)
https://github.com/python/cpython/commit/77606957e71ce477d2c5569718f0fc36f05c6f59


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[issue30380] Sphinx 1.6.1 raising new warnings in docs build

[Brett Cannon]

Brett Cannon added the comment:


New changeset 97eb2a7d77011605e8fc49e754cd371ead4366bc by Brett Cannon in 
branch '2.7':
[2.7] bpo-30380: Pin the version of Sphinx used to build the docs (GH-1612) 
(GH-1619)
https://github.com/python/cpython/commit/97eb2a7d77011605e8fc49e754cd371ead4366bc


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[issue30380] Sphinx 1.6.1 raising new warnings in docs build

[Brett Cannon]

Brett Cannon added the comment:

All branches should be green again. Serhiy has a PR out to fix 2.7 for Sphinx 
1.6.1, but it isn't passing yet so that branch is pinned to 1.5.6 until then.

I will leave this issue open for Serhiy to close once his 2.7 PR is merged.

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[issue29137] Fix fpectl-induced ABI breakage

[Dima Pasechnik]

Dima Pasechnik added the comment:

While fpectl might be a bit rusty, this is a priceless tool in debugging 
situations, where one needs to identify components that do something wrong to 
FPU, see e.g.
https://github.com/numpy/numpy/issues/9007
and the related
https://trac.sagemath.org/ticket/22799

As long as there is no equivalent, it's too early to discuss getting rid of it, 
IMHO.

--
nosy: +Dima Pasechnik

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[issue30181] Correct the parsing of a test case docstring.

[R. David Murray]

R. David Murray added the comment:

It's not the PSF, it's the dev team, and it is "just" a matter of tooling.  
Which means help improving the tooling is welcome :)

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[issue30371] test_long_lines() fails randomly on AMD64 Windows7 SP1 3.x

[STINNER Victor]

STINNER Victor added the comment:

New fail, same buildbot:

==
FAIL: test_long_lines (test.test_email.test_email.TestFeedParsers)
--
Traceback (most recent call last):
  File 
"C:\buildbot.python.org\3.x.kloth-win64\build\lib\test\test_email\test_email.py",
 line 3534, in test_long_lines
self.assertEqual(m.items(), [('a', ''), ('b', 'x'*M*N)])
AssertionError: Lists differ: [('a'[1845894 
chars]xz[18154072 chars]xx')] != 
[('a'[1845894 chars]xx[18154072 
chars]xx')]

First differing element 1:
('b',[1845882 chars]xz[18154071 
chars]xxx')
('b',[1845882 chars]xx[18154071 
chars]xxx')

  [('a', ''),
   ('b',


Don't click on 
http://buildbot.python.org/all/builders/AMD64%20Windows7%20SP1%203.x/builds/439/steps/test/logs/stdio
 : the log contains lines of 2 MB which make my Firefox super slow :-)

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[issue30329] test_imaplib.test_login_cram_md5(): OSError: [WinError 10022] An invalid argument was supplied on AMD64 Windows8.1 Non-Debug 3.6

[STINNER Victor]

Changes by STINNER Victor :


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[issue30329] test_imaplib.test_login_cram_md5(): OSError: [WinError 10022] An invalid argument was supplied on AMD64 Windows8.1 Non-Debug 3.6

[STINNER Victor]

Changes by STINNER Victor :


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[issue29137] Fix fpectl-induced ABI breakage

[Nathaniel Smith]

Nathaniel Smith added the comment:

@Dima: are you volunteering to fix and maintain it? I can see why it's useful 
to have some way to get at the fpu flags, but I don't see how fpectl 
specifically helps with that issue, and fpectl has always been broken on x86-64.

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[issue30329] poplib and imaplib should catch "OSError: [WinError 10022] An invalid argument was supplied" on shutdown

[STINNER Victor]

Changes by STINNER Victor :


--
components: +Library (Lib)
title: test_imaplib.test_login_cram_md5(): OSError: [WinError 10022] An invalid 
argument was supplied on AMD64 Windows8.1 Non-Debug 3.6 -> poplib and imaplib 
should catch "OSError: [WinError 10022] An invalid argument was supplied" on 
shutdown
versions: +Python 3.5, Python 3.7

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[issue30339] test_multiprocessing_main_handling: "RuntimeError: Timed out waiting for results" on x86 Windows7 3.x

[STINNER Victor]

STINNER Victor added the comment:

> New changeset 7d6320ba47a229543acc0af6a64bc4e414932273 by Victor Stinner in 
> branch 'master':
> bpo-30339: test_multiprocessing_main_handling timeout (#1593)
> https://github.com/python/cpython/commit/7d6320ba47a229543acc0af6a64bc4e414932273

Sadly, a new build failed at commit fca224f117d25bdfec1bf7160b67438c4fcf6dee, 
so with the new timeout of 60 seconds:
http://buildbot.python.org/all/builders/x86%20Windows7%203.x/builds/619/steps/test/logs/stdio

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[issue30381] test_smtpnet.test_connect_using_sslcontext_verified() randomly failed with "smtplib.SMTPServerDisconnected: Connection unexpectedly closed" on AMD64 FreeBSD CURRENT Debug 3.x

[STINNER Victor]

New submission from STINNER Victor:

See also bpo-30331 (test_poplib) and bpo-30328 (test_ssl): other connection 
reset on the FreeBSD buildbots.

http://buildbot.python.org/all/builders/AMD64%20FreeBSD%20CURRENT%20Debug%203.x/builds/272/steps/test/logs/stdio

0:15:55 load avg: 1.77 [387/405/1] test_smtpnet failed -- running: 
test_subprocess (62 sec)
test_connect (test.test_smtpnet.SmtpSSLTest) ... ok
test_connect_default_port (test.test_smtpnet.SmtpSSLTest) ... ok
test_connect_using_sslcontext (test.test_smtpnet.SmtpSSLTest) ... ok
test_connect_using_sslcontext_verified (test.test_smtpnet.SmtpSSLTest) ... ERROR
test_connect_starttls (test.test_smtpnet.SmtpTest) ... ok

==
ERROR: test_connect_using_sslcontext_verified (test.test_smtpnet.SmtpSSLTest)
--
Traceback (most recent call last):
  File 
"/usr/home/buildbot/python/3.x.koobs-freebsd-current/build/Lib/test/test_smtpnet.py",
 line 77, in test_connect_using_sslcontext_verified
server = smtplib.SMTP_SSL(self.testServer, self.remotePort, context=context)
  File 
"/usr/home/buildbot/python/3.x.koobs-freebsd-current/build/Lib/smtplib.py", 
line 1029, in __init__
source_address)
  File 
"/usr/home/buildbot/python/3.x.koobs-freebsd-current/build/Lib/smtplib.py", 
line 251, in __init__
(code, msg) = self.connect(host, port)
  File 
"/usr/home/buildbot/python/3.x.koobs-freebsd-current/build/Lib/smtplib.py", 
line 337, in connect
(code, msg) = self.getreply()
  File 
"/usr/home/buildbot/python/3.x.koobs-freebsd-current/build/Lib/smtplib.py", 
line 393, in getreply
raise SMTPServerDisconnected("Connection unexpectedly closed")
smtplib.SMTPServerDisconnected: Connection unexpectedly closed

--
Ran 5 tests in 7.470s

FAILED (errors=1)
test test_smtpnet failed

--
assignee: christian.heimes
components: SSL, Tests
keywords: buildbot
messages: 293808
nosy: christian.heimes, haypo, koobs
priority: normal
severity: normal
status: open
title: test_smtpnet.test_connect_using_sslcontext_verified() randomly failed 
with "smtplib.SMTPServerDisconnected: Connection unexpectedly closed" on AMD64 
FreeBSD CURRENT Debug 3.x
versions: Python 3.7

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[issue30371] test_long_lines() fails randomly on AMD64 Windows7 SP1 3.x

[Jeremy Kloth]

Jeremy Kloth added the comment:

Watch this space, but I'm pretty sure that it is (was) bad memory.  It passes 
memtest86+ but I had issues with these kits in other machines.  I swapped out 
the stick I believe that had the stuck bit.  

Unfortunately, it is a wait and see solution, as they do pass memtest86+, just 
not the Python test suite ;)

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[issue30333] test_multiprocessing_forkserver: poll() failed on AMD64 FreeBSD CURRENT Non-Debug 3.5

[STINNER Victor]

STINNER Victor added the comment:

Other test_multiprocessing_forkserver errors on AMD64 FreeBSD CURRENT Non-Debug 
3.6.

http://buildbot.python.org/all/builders/AMD64%20FreeBSD%20CURRENT%20Non-Debug%203.6/builds/150/steps/test/logs/stdio

(...)
test_import (test.test_multiprocessing_forkserver._TestImportStar) ... ok
Dangling threads: {}

==
FAIL: test_active_children 
(test.test_multiprocessing_forkserver.WithProcessesTestProcess)
--
Traceback (most recent call last):
  File 
"/usr/home/buildbot/python/3.6.koobs-freebsd-current.nondebug/build/Lib/test/_test_multiprocessing.py",
 line 345, in test_active_children
self.assertIn(p, self.active_children())
AssertionError:  not found in []

==
FAIL: test_notify 
(test.test_multiprocessing_forkserver.WithThreadsTestCondition)
--
Traceback (most recent call last):
  File 
"/usr/home/buildbot/python/3.6.koobs-freebsd-current.nondebug/build/Lib/test/_test_multiprocessing.py",
 line 886, in test_notify
self.assertReturnsIfImplemented(1, get_value, woken)
  File 
"/usr/home/buildbot/python/3.6.koobs-freebsd-current.nondebug/build/Lib/test/_test_multiprocessing.py",
 line 165, in assertReturnsIfImplemented
return self.assertEqual(value, res)
AssertionError: 1 != 0

--
Ran 277 tests in 92.148s

FAILED (failures=2, skipped=16)
Warning -- threading._dangling was modified by test_multiprocessing_forkserver
  Before: <_weakrefset.WeakSet object at 0x805771518>
  After:  <_weakrefset.WeakSet object at 0x8009c6cf8> 
test test_multiprocessing_forkserver failed

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[issue30371] test_long_lines() fails randomly on AMD64 Windows7 SP1 3.x

[STINNER Victor]

STINNER Victor added the comment:

> Watch this space, but I'm pretty sure that it is (was) bad memory.

It's really strange that only one very specific Python test fails if it's a bad 
memory issue?

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[issue30380] Sphinx 1.6.1 raising new warnings in docs build

[Serhiy Storchaka]

Serhiy Storchaka added the comment:


New changeset b8b9f95f660d00ce9bd11bd9de429176858be3c5 by Serhiy Storchaka in 
branch '2.7':
[2.7] bpo-30380: Fix Sphinx 1.6.1 warnings. (GH-1613) (#1616)
https://github.com/python/cpython/commit/b8b9f95f660d00ce9bd11bd9de429176858be3c5


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[issue30211] Bdb: add docstrings

[Terry J. Reedy]

Terry J. Reedy added the comment:


New changeset 0774e79b93cc494b3a957d538c7c112e289973c0 by terryjreedy 
(csabella) in branch 'master':
bpo-30211: bdb: add docstrings (#1350)
https://github.com/python/cpython/commit/0774e79b93cc494b3a957d538c7c112e289973c0


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[issue30329] poplib and imaplib should catch "OSError: [WinError 10022] An invalid argument was supplied" on shutdown

[STINNER Victor]

STINNER Victor added the comment:


New changeset aaa053652556aa4e59cb68f3983a09ced1d1fe2a by Victor Stinner in 
branch '3.6':
bpo-30329: Catch Windows error 10022 on shutdown() (#1538) (#1620)
https://github.com/python/cpython/commit/aaa053652556aa4e59cb68f3983a09ced1d1fe2a


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[issue30371] test_long_lines() fails randomly on AMD64 Windows7 SP1 3.x

[Jeremy Kloth]

Jeremy Kloth added the comment:

My thinking is that in normal running, the in-use memory is below the bad bit.  
It is due to that test using such a large chunk of memory that it pushes the 
data into the bad area.  I would wager that if largemem tests were run, the 
would error as well.

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[issue29137] Fix fpectl-induced ABI breakage

[Dima Pasechnik]

Dima Pasechnik added the comment:

@njs: Fixing this entails switching over from ieeefp to fenv, right? Looks 
doable, although not trivial.
It might potentially be useful for various numerics, IMHO.

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[issue30371] test_long_lines() fails randomly on AMD64 Windows7 SP1 3.x

[STINNER Victor]

STINNER Victor added the comment:

If you are sure that your memory has issues, don't test it, just change it. I 
had memory issues once but memtest86 was quick to prove memory errors in my 
case. I changed the memory for free since it was still under the warranty.

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[issue30329] poplib and imaplib should catch "OSError: [WinError 10022] An invalid argument was supplied" on shutdown

[STINNER Victor]

STINNER Victor added the comment:


New changeset c9ba45d1b71d86321e5422e8a2cbe6e52aaba6f4 by Victor Stinner in 
branch '3.5':
bpo-30329: Catch Windows error 10022 on shutdown() (#1538) (#1621)
https://github.com/python/cpython/commit/c9ba45d1b71d86321e5422e8a2cbe6e52aaba6f4


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[issue29137] Fix fpectl-induced ABI breakage

[Nathaniel Smith]

Nathaniel Smith added the comment:

Also fixing the abi issues that started this, and probably making an argument 
for why it makes sense for all of cpython's built-in float operations to check 
the fpu flags, and to do so using a weird longjmp-based mechanism that only 
some platforms support. The fact that it's disabled by default and has been 
broken for a decade+ without anyone noticing might be working against you 
here...

You might get the impression that I think this is a bad idea. I do :-). But I 
am genuinely trying to helpful; I'm sure people would be willing to listen to 
an argument, and if you want to make one then those are the sorts of issues 
you're likely to need some answer for.

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[issue29137] Fix fpectl-induced ABI breakage

[Nathaniel Smith]

Nathaniel Smith added the comment:

Another option you might want to consider is proposing to add a proper fpu 
control flag setting/checking API to the math module.

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[issue30371] test_long_lines() fails randomly on AMD64 Windows7 SP1 3.x

[Jeremy Kloth]

Jeremy Kloth added the comment:

That's the real problem, I'm not *sure* it's the memory, but it does have the 
symptoms.  And that is why my buildbot was down earlier, I was attempting to 
determine the bad stick and replace it.  I'm just hoping I changed the right 
one.  That is why I brought up the testing (they both pass memtest).

So far so good, no test_email issues after the change, but only 2 runs in.

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[issue30382] test_stdin_broken_pipe() of test_asyncio failed randomly on AMD64 FreeBSD CURRENT Non-Debug 3.x

[STINNER Victor]

New submission from STINNER Victor:

http://buildbot.python.org/all/builders/AMD64%20FreeBSD%20CURRENT%20Non-Debug%203.x/builds/279/steps/test/logs/stdio

==
FAIL: test_stdin_broken_pipe 
(test.test_asyncio.test_subprocess.SubprocessFastWatcherTests)
--
Traceback (most recent call last):
  File 
"/usr/home/buildbot/python/3.x.koobs-freebsd-current.nondebug/build/Lib/test/test_asyncio/test_subprocess.py",
 line 213, in test_stdin_broken_pipe
self.loop.run_until_complete, coro)
AssertionError: (, ) not 
raised by run_until_complete

--

--
components: Tests, asyncio
messages: 293822
nosy: haypo, yselivanov
priority: normal
severity: normal
status: open
title: test_stdin_broken_pipe() of test_asyncio failed randomly on AMD64 
FreeBSD CURRENT Non-Debug 3.x
versions: Python 3.7

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[issue30357] test_thread.test_save_exception_state_on_error(): Unhandled exception in thread: AMD64 Debian root 2.7

[STINNER Victor]

Changes by STINNER Victor :


--
pull_requests: +1711

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