[issue41638] Error message: sqlite3.ProgrammingError: You did not supply a value for binding # might be improved

[Wolfgang Fahl]

Wolfgang Fahl  added the comment:

Indeed this a request for improvement. Technically the software works as 
expected. Just thousands of programmers have extra debug effort at this tate of 
affairs as can be deducted from the view count in the stackoverflow questions. 
The extra step of looking up the column name from the binding number can be 
avoided as i have shown by my workaround. To hide the detail of 

   set it globally before doing that (sqlite3.paramstyle = 'named').

here in the bug report is not helpful. Part of the request is also to show the 
record number in executeMany - just to make lifer easier for users for sqlite3

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[issue36172] csv module internal consistency

[Josh Rosenberg]

Change by Josh Rosenberg :


--
resolution:  -> not a bug
stage:  -> resolved
status: pending -> closed

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[issue41655] New Node may not be visited in lib2to3.refactor.RefactoringTool.traverse_by

[Chrome]

Chrome  added the comment:

you can run example.py to reproduce this bug.

--
Added file: https://bugs.python.org/file49434/example.py

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[issue31749] Request: Human readable byte amounts in the standard library

[Avram]

Avram  added the comment:

I looked through a lot of the suggested libraries and they all seemed either 
too specific to an implementation or didn't fully implement compatibility. So I 
created Prefixed to prove out the implementation of of an expanded format 
specification for float would look like.

It implements 3 new format types:
- h: SI Decimal prefix (..., n, μ, m, k, M, G, ...)
- j: IEC Binary prefix (Ki, Mi, Gi, ...)
- J: Shortened IEC Binary prefix (K, M, G, ...)

It also implements a new flag, '!' that will add a space before the prefix.

For now, the math is pretty simple, if you cross a magnitude level it will go 
to that prefix. So 999 would be '999' and 1000 would be 1k.

I was thinking another format specification option '%' followed by a digit 
could be used to set the threshold of when to switch, so f'{950.0:%5.2h}' would 
be '0.95k', but f'{949.0:%5.2h}' would be '949.00'. Was going to think about it 
a little more before implementing.

I'd appreciate feedback on the library. Issues can be submitted here: 
https://github.com/Rockhopper-Technologies/prefixed/issues

https://pypi.org/project/prefixed/

--
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[issue41660] multiprocessing.Manager objects lose connection info

[Tim Peters]

Tim Peters  added the comment:

Weird. If I insert these between the two process starts:

import time
time.sleep(2)

then the producer produces the expected output:

at start: 666
at producer start: 666

and the program blows up instead when it gets to

print("in consumer:", self.val.value)

Same thing if, instead of a sleep, I put

producerprocess.join()

before starting the consumer.

If I change the tail end to:

producerprocess.start()
import time
time.sleep(2)
print(state_value)
consumerprocess = MyConsumer(state_value, state_ready)
consumerprocess.start()

then I see

at start: 666
at producer start: 666
Value('i', 42)

before it blows up in the consumer.  So `state_value` appears to survive 
intact, and mutated as intended, across the producer's life - but gets 
corrupted somehow when it's _also_ passed to the consumer.

Weirder ;-) , if I replace the tail with the ever-more elaborate:

producerprocess = MyProducer(state_value, state_ready)
producerprocess.start()
import time
time.sleep(2)
producerprocess.join()
print(state_value)

state_value.value = 13
producerprocess = MyProducer(state_value, state_ready)
producerprocess.start()
time.sleep(2)
producerprocess.join()
print(state_value)

consumerprocess = MyConsumer(state_value, state_ready)
consumerprocess.start()

then I see

at start: 666
at producer start: 666
Value('i', 42)
at producer start: 13
Value('i', 42)

before it blows up in the consumer - so it survived two full producer 
lifetimes!  So ... generalize ... change the tail to:


for i in range(10):
state_value.value = i
producerprocess = MyProducer(state_value, state_ready)
producerprocess.start()
producerprocess.join()
print(state_value)

consumerprocess = MyConsumer(state_value, state_ready)
consumerprocess.start()

and I see everything working fine before it blows up in the consumer:

at start: 666
at producer start: 0
Value('i', 42)
at producer start: 1
Value('i', 42)
at producer start: 2
Value('i', 42)
at producer start: 3
Value('i', 42)
at producer start: 4
Value('i', 42)
at producer start: 5
Value('i', 42)
at producer start: 6
Value('i', 42)
at producer start: 7
Value('i', 42)
at producer start: 8
Value('i', 42)
at producer start: 9
Value('i', 42)

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[issue1635741] Py_Finalize() doesn't clear all Python objects at exit

[mohamed koubaa]

Change by mohamed koubaa :


--
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pull_request: https://github.com/python/cpython/pull/21995

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[issue41655] New Node may not be visited in lib2to3.refactor.RefactoringTool.traverse_by

[Chrome]

Change by Chrome :


--
versions: +Python 3.5, Python 3.6, Python 3.7, Python 3.8, Python 3.9

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[issue41659] PEG discrepancy on 'if {x} {a}: pass'

[Chrome]

Change by Chrome :


--
versions: +Python 3.5, Python 3.6, Python 3.7, Python 3.8

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[issue41659] PEG discrepancy on 'if {x} {a}: pass'

[Chrome]

Change by Chrome :


--
versions:  -Python 3.5, Python 3.6, Python 3.7, Python 3.8

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[issue41660] multiprocessing.Manager objects lose connection info

[Tim Peters]

New submission from Tim Peters :

This started on StackOverflow:

https://stackoverflow.com/questions/63623651/how-to-properly-share-manager-dict-between-processes

Here's a simpler program.

Short course: an object of a subclass of mp.Process has an attribute of 
seemingly any type obtained from an mp.Manager(). The report above used a 
Manager.dict, and the program here a Manager.Value.

When .start() is invoked, the first time that attribute is used in any way that 
requires communication with the Manager server, the program dies. The output 
below is from 3.8.5 on Windows; the report above is some Linux flavor. The 
tracebacks are very similar, the only obvious difference being that the 
implementation complains about a socket on Linux but about a named pipe on 
Windows.

Note that there's no problem passing such things as explicit arguments to 
functions across processes. The loss here appears specific to the inscrutable 
under-the-covers pickle dance needed to create a "self" by magic on worker 
processes.

The code:

from multiprocessing import Process, Manager, Event

class MyProducer(Process):
def __init__(self, value, event):
Process.__init__(self)
self.val = value
self.event = event

def run(self):
print("at producer start:", self.val.value)
self.val.value = 42
self.event.set()

class MyConsumer(Process):
def __init__(self, value, event):
Process.__init__(self)
self.val = value
self.event = event

def run(self):
self.event.wait()
print("in consumer:", self.val.value)

if __name__ == "__main__":
state_value = Manager().Value('i', 666)
print("at start:", state_value.value)
state_ready = Event()
producerprocess = MyProducer(state_value, state_ready)
consumerprocess = MyConsumer(state_value, state_ready)
producerprocess.start()
consumerprocess.start()

The output:

at start: 666
Process MyProducer-2:
Traceback (most recent call last):
  File 
"C:\Users\Tim\AppData\Local\Programs\Python\Python38\lib\multiprocessing\managers.py",
 line 827, in _callmethod
conn = self._tls.connection
AttributeError: 'ForkAwareLocal' object has no attribute 'connection'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File 
"C:\Users\Tim\AppData\Local\Programs\Python\Python38\lib\multiprocessing\process.py",
 line 315, in _bootstrap
self.run()
  File "C:\Code\temp.py", line 10, in run
print("at producer start:", self.val.value)
  File 
"C:\Users\Tim\AppData\Local\Programs\Python\Python38\lib\multiprocessing\managers.py",
 line 1154, in get
return self._callmethod('get')
  File 
"C:\Users\Tim\AppData\Local\Programs\Python\Python38\lib\multiprocessing\managers.py",
 line 831, in _callmethod
self._connect()
  File 
"C:\Users\Tim\AppData\Local\Programs\Python\Python38\lib\multiprocessing\managers.py",
 line 818, in _connect
conn = self._Client(self._token.address, authkey=self._authkey)
  File 
"C:\Users\Tim\AppData\Local\Programs\Python\Python38\lib\multiprocessing\connection.py",
 line 500, in Client
c = PipeClient(address)
  File 
"C:\Users\Tim\AppData\Local\Programs\Python\Python38\lib\multiprocessing\connection.py",
 line 702, in PipeClient
_winapi.WaitNamedPipe(address, 1000)
FileNotFoundError: [WinError 2] The system cannot find the file specified

--
components: Library (Lib)
messages: 376051
nosy: tim.peters
priority: normal
severity: normal
status: open
title: multiprocessing.Manager objects lose connection info
type: behavior
versions: Python 3.8

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[issue24160] Pdb sometimes raises exception when trying to remove a breakpoint defined in a different debugger session

[Irit Katriel]

Change by Irit Katriel :


--
title: Pdb sometimes crashes when trying to remove a breakpoint defined in a 
different debugger sessoon -> Pdb sometimes raises exception when trying to 
remove a breakpoint defined in a different debugger session
versions: +Python 3.10 -Python 2.7, Python 3.5

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[issue41638] Error message: sqlite3.ProgrammingError: You did not supply a value for binding # might be improved

[Evens Fortuné]

Evens Fortuné  added the comment:

I don't think this is a bug. As I have explained in the answer I have provided 
on StackOverflow 
(https://stackoverflow.com/posts/comments/112539410?noredirect=1), it seems 
that sqlite3 uses by default the qmark parameter substitution style for their 
query which uses a tuple to provide it with its values. So it makes sense that 
the error message only does reference the index number since the matching is 
done on the order where a parameter appear on the SQL query and the same order 
in the tuple provided.

Here @Wolfgang seems to try to use the named parameter substitution style 
because he is using a dictionary to provide the values to the query. You have 
to set it globally before doing that (sqlite3.paramstyle = 'named').

So from my point of view there is no bug here.

--
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[issue20119] pdb c(ont(inue)) optional one-time-only breakpoint (like perl debugger)

[Irit Katriel]

Irit Katriel  added the comment:

Pdb already has this, it's the tbreak command.

--
nosy: +iritkatriel

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[issue41513] High accuracy math.hypot()

[Raymond Hettinger]

Change by Raymond Hettinger :


--
pull_requests: +21100
pull_request: https://github.com/python/cpython/pull/21994

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[issue41659] PEG discrepancy on 'if {x} {a}: pass'

[Guido van Rossum]

New submission from Guido van Rossum :

I just noticed a subtle discrepancy between the old parser and the PEG parser.

Consider this syntax error:
```
if x {a}: pass
```
The old parser places the caret at the '{':
```
$ python3.8 -c 'if x { a } : pass'
  File "", line 1
if x { a } : pass
 ^
SyntaxError: invalid syntax
```
The PEG parser puts it at 'a':
```
$ python3.10 -c 'if x { a } : pass'
  File "", line 1
if x { a } : pass
   ^
SyntaxError: invalid syntax
```

I don't think we should put much effort into fixing it -- it's just a 
curiosity. I suspect it's got to do with some lookahead.

--
assignee: lys.nikolaou
messages: 376048
nosy: gvanrossum, lys.nikolaou
priority: low
severity: normal
stage: needs patch
status: open
title: PEG discrepancy on 'if {x} {a}: pass'
type: behavior
versions: Python 3.10, Python 3.9

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[issue41658] http.client not allowing non-ascii in headers

[Aliona Matveeva]

New submission from Aliona Matveeva :

http.client trying to decode any header with 'latin-1', which fails when there 
is any non-ascii symbols in it, for example, Cyrillic. 

I propose to check if it's non-ascii and then decode it with 'utf-8', works 
perfectly.

--
components: Library (Lib)
messages: 376047
nosy: yellalena
priority: normal
severity: normal
status: open
title: http.client not allowing non-ascii in headers
versions: Python 3.8

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[issue41657] Refactor for object source files variable in Makefile

[Elian Mariano Gabriel]

Change by Elian Mariano Gabriel :


--
keywords: +patch
pull_requests: +21099
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/21993

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[issue33337] Provide a supported Concrete Syntax Tree implementation in the standard library

[Lysandros Nikolaou]

Change by Lysandros Nikolaou :


--
nosy: +lys.nikolaou

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[issue41059] Large number of Coverity reports for parser.c

[Guido van Rossum]

Change by Guido van Rossum :


--
resolution:  -> works for me
stage: needs patch -> resolved
status: open -> closed

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[issue41059] Large number of Coverity reports for parser.c

[Lysandros Nikolaou]

Lysandros Nikolaou  added the comment:

I propose that we take no further action and close this.

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[issue41657] Refactor for object source files variable in Makefile

[Elian Mariano Gabriel]

New submission from Elian Mariano Gabriel :

Refactoring in the Makefile is needed due a hard coded declaration to the 
'OBJECT_OBJS' variable in the line 388.

This hard coded declaration can be replaced by a pattern substitution function 
which assigns the 'OBJECT_OBJS' variable in this much simpler way:

OBJECT_OBJS=$(patsubst %.c, %.o, $(wildcard Objects/*.c))

This assignment will facilitate the future builds because it is not need to add 
a new obj reference when created a new source code inside the 'Objects' folder.

--
components: Build
messages: 376045
nosy: ElianMariano
priority: normal
severity: normal
status: open
title: Refactor for object source files variable in Makefile
type: enhancement

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[issue24160] Pdb sometimes crashes when trying to remove a breakpoint defined in a different debugger sessoon

[Irit Katriel]

Irit Katriel  added the comment:

I've submitted a patch that I believe fixes this problem. It adds in Bdb's 
__init__ a call to a function that reads the Breakpoint's 'bplist' and 
'bpbynumber' class attributes and populates the new instances' 'breaks' dict.

--

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[issue24160] Pdb sometimes crashes when trying to remove a breakpoint defined in a different debugger sessoon

[Irit Katriel]

Change by Irit Katriel :


--
keywords: +patch
nosy: +iritkatriel
nosy_count: 4.0 -> 5.0
pull_requests: +21098
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/21989

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[issue41487] Builtin bigint modulo operation can be made faster when the base is divisible by a large power of 2 (i.e: has many trailing 0 digits in binary)

[Mark Dickinson]

Change by Mark Dickinson :


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

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[issue41649] Can't pass Path like objects to subprocess api's on Windows.

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

I do not understand how you get this result. At that line of code arg can only 
be string, because it is a result of os.fsdecode(). Are you sure that you use 
Python version which includes issue31961 changes? What exactly Python version 
do you use?

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[issue41624] typing.Coroutine documentation

[Guido van Rossum]

Change by Guido van Rossum :


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

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[issue41624] typing.Coroutine documentation

[Guido van Rossum]

Guido van Rossum  added the comment:


New changeset c01a7edc67e2c2e13a6d9513f111f27761786e27 by Karthikeyan 
Singaravelan in branch '3.9':
[3.9] bpo-41624: fix documentation of typing.Coroutine (GH-21952) (#21982)
https://github.com/python/cpython/commit/c01a7edc67e2c2e13a6d9513f111f27761786e27


--

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[issue41624] typing.Coroutine documentation

[Guido van Rossum]

Guido van Rossum  added the comment:


New changeset 838316db08a8e3174e4cf8db233ff69d388b3f5c by Karthikeyan 
Singaravelan in branch '3.8':
[3.8] bpo-41624: fix documentation of typing.Coroutine (GH-21952). (#21983)
https://github.com/python/cpython/commit/838316db08a8e3174e4cf8db233ff69d388b3f5c


--
nosy: +gvanrossum

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[issue41656] Sets are storing elements in sorted order.

[Steven D'Aprano]

Steven D'Aprano  added the comment:

Here's another example:

py> set([1, 2**63, 4, -5, 6, 5])
{1, 9223372036854775808, 4, 6, 5, -5}



By the way, in the future, please don't post screen shots of text, copy the 
code and output and paste it as text into your bug report. Screenshots make it 
hard for us to reproduce the bug, we have to re-type your code. And it makes it 
difficult for blind and visually impaired developers, who may be reading this 
with a screen-reader.

--

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[issue41656] Sets are storing elements in sorted order.

[Steven D'Aprano]

Steven D'Aprano  added the comment:

"Unordered" means that the language doesn't promise any specific order, it 
doesn't mean that there is no order at all.

Try strings:

py> set("abcdef")
{'b', 'f', 'c', 'e', 'd', 'a'}


or different ints:

py> set([1, 0, -2])
{0, 1, -2}

--
nosy: +steven.daprano
resolution:  -> not a bug
stage:  -> resolved
status: open -> closed

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[issue41642] Buildbot: workers detached every minute and "no space left on device" issue

[David Edelsohn]

David Edelsohn  added the comment:

I can provide some information from the logs of one of the buildbots, or change 
a parameter. Let me know.

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[issue41655] New Node may not be visited in lib2to3.refactor.RefactoringTool.traverse_by

[Chrome]

Change by Chrome :


--
title: new Node may not visited in lib2to3.refactor.RefactoringTool.traverse_by 
-> New Node may not be visited in lib2to3.refactor.RefactoringTool.traverse_by

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[issue41656] Sets are storing elements in sorted order.

[Piyush Pravin]

New submission from Piyush Pravin :

In documentation it is written that " Sets are unordered collection", but 
actually it is storing the elements in sorted order.

--
assignee: docs@python
components: Documentation
files: dndndgndghbdgngdndgngtn.PNG
messages: 376037
nosy: docs@python, piyushpravin1998
priority: normal
severity: normal
status: open
title: Sets are storing elements in sorted order.
type: resource usage
versions: Python 3.7
Added file: https://bugs.python.org/file49432/dndndgndghbdgngdndgngtn.PNG

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[issue41651] Pip: Wrong Showing of Progressbar when Downloading Modules

[Benjamin Peterson]

Change by Benjamin Peterson :


--
resolution:  -> third party
stage:  -> resolved
status: open -> closed

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[issue41655] new Node may not visited in lib2to3.refactor.RefactoringTool.traverse_by

[Chrome]

Change by Chrome :


--
keywords: +patch
pull_requests: +21097
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/21988

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[issue41655] new Node may not visited in lib2to3.refactor.RefactoringTool.traverse_by

[Chrome]

Chrome  added the comment:

`lib2to3.refactor.RefactoringTool.traverse_by` do a pre-order or post-order 
traverse algorithm, and apply every candidate fixer to each node when traverse 
the tree. when a prior fixer add a new node that contains children, these 
children won't be visited by posterior fixers.

--

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[issue41655] new Node may not visited in lib2to3.refactor.RefactoringTool.traverse_by

[Chrome]

New submission from Chrome :

`lib2to3.refactor.RefactoringTool.traverse_by` do a pre-order or post-order, 
and apply every candidate fixer to each node when traverse the tree. when a 
prior fixer add a new node that contains children, these children won't be 
visited by posterior fixers.

--
components: 2to3 (2.x to 3.x conversion tool)
messages: 376035
nosy: chrome
priority: normal
severity: normal
status: open
title: new Node may not visited in lib2to3.refactor.RefactoringTool.traverse_by
type: behavior
versions: Python 3.10

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[issue41654] Segfault when raising MemoryError

[hai shi]

Change by hai shi :


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nosy: +shihai1991

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[issue41652] An Advice on Turning Ellipsis into Keyword

[Josh Rosenberg]

Josh Rosenberg  added the comment:

I'm closing this as not being worth the costs of adding new keywords. You're 
welcome to propose it on the python-ideas list (a more appropriate place to 
propose and suss out the details of significant language changes), but you'll 
need to formulate a much stronger reason for making this change.

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

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[issue35228] Index search in CHM help crashes viewer

[Ma Lin]

Ma Lin  added the comment:

> when I delete the file %APPDATA%\Microsoft\HTML Help\hh.dat,
> the problem seems to go away.

It doesn't work for me.
Moreover, `Binary Index=Yes` no longer works on my PC.

A few days ago, I installed a clean Windows 10 2004, then CHM's index cannot be 
used.

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[issue36207] robotsparser deny all with some rules

[calamina]

calamina  added the comment:

I have a problem with my robot.txt on https://www.sondage-remunere.com/

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[issue41654] Segfault when raising MemoryError

[STINNER Victor]

STINNER Victor  added the comment:

Aha, interesting bug report. I attached a simplified reproducer.

Output with a Python built in debug mode:
---
Objects/frameobject.c:590: _Py_NegativeRefcount: Assertion failed: object has 
negative ref count

Fatal Python error: _PyObject_AssertFailed: _PyObject_AssertFailed
Python runtime state: initialized

Current thread 0x7efd7a2d0740 (most recent call first):
  File "/home/vstinner/bug.py", line 29 in 
Abandon (core dumped)
---

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nosy: +vstinner
Added file: https://bugs.python.org/file49431/bug.py

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[issue41654] Segfault when raising MemoryError

[Oleg Hoefling]

Oleg Hoefling  added the comment:

If this is of any help, I've set up an example repository containing the 
snippet: https://github.com/hoefling/bpo-issue-41654

Here are the results of running the snippet in Travis with Python 3.{5-10} and 
Pypy 3.6: https://travis-ci.com/github/hoefling/bpo-issue-41654

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[issue41651] Pip: Wrong Showing of Progressbar when Downloading Modules

[Henk-Jaap Wagenaar]

Henk-Jaap Wagenaar  added the comment:

Thanks for the report, that does look like unfriendly UX.

pip is maintained separately and then vendored (included/packaged in). Could 
you please file an issue here instead: https://github.com/pypa/pip/issues (I 
would do so myself, but as I do not develop on Windows might not be best placed 
to provide feedback).

--
nosy: +cryvate

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[issue41654] Segfault when raising MemoryError

[Oleg Hoefling]

New submission from Oleg Hoefling :

First of all, I guess this is a somewhat obscure error that is unlikely to 
occur in a usual context, nevertheless IMO worth reporting. We observed this 
when unit-testing custom exception reporting mechanism, raising different 
exceptions in different contexts and then analyzing whether they are processed 
correctly.

This is a somewhat dull example I managed to extract from our tests:


from pathlib import Path
from unittest.mock import patch


class TestException(MemoryError):
pass


class report_ctx:
def __enter__(self):
return self
def __exit__(self, exc_type, exc_value, tb):
report(exc_value)


class raises:
def __init__(self, ex):
self.ex = ex
def __enter__(self):
return self
def __exit__(self, exc_type, exc_value, tb):
return issubclass(exc_type, self.ex)


def report(ex):
pass


def error():
raise MemoryError


modname = Path(__file__).stem

for _ in range(10):
with patch(f"{modname}.report"):
with raises(MemoryError), report_ctx():
raise MemoryError

with raises(TestException):
raise TestException

with raises(MemoryError):
error()

that yields:

Fatal Python error: Segmentation fault

Current thread 0x7fcf0833b740 (most recent call first):
  File 
"/home/oleg.hoefling/projects/private/python-memoryerror-segfault/main.py", 
line 38 in 
  File "", line 228 in _call_with_frames_removed
  File "", line 790 in exec_module
  File "", line 680 in _load_unlocked
  File "", line 986 in _find_and_load_unlocked
  File "", line 1007 in _find_and_load
  File "/usr/lib64/python3.9/unittest/mock.py", line 1236 in _importer
  File "/usr/lib64/python3.9/unittest/mock.py", line 1564 in 
  File "/usr/lib64/python3.9/unittest/mock.py", line 1389 in __enter__
  File 
"/home/oleg.hoefling/projects/private/python-memoryerror-segfault/main.py", 
line 36 in 

--
components: Interpreter Core
messages: 376028
nosy: hoefling
priority: normal
severity: normal
status: open
title: Segfault when raising MemoryError
type: crash
versions: Python 3.10, Python 3.5, Python 3.6, Python 3.7, Python 3.8, Python 
3.9

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[issue15443] datetime module has no support for nanoseconds

[Roundup Robot]

Change by Roundup Robot :


--
keywords: +patch
nosy: +python-dev
nosy_count: 20.0 -> 21.0
pull_requests: +21096
stage: needs patch -> patch review
pull_request: https://github.com/python/cpython/pull/21987

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[issue41642] Buildbot: workers detached every minute and "no space left on device" issue

[STINNER Victor]

STINNER Victor  added the comment:

On the server side, it seems like the "edelsohn-rhel8-z" worker is detached 
because its TCP connection is closed, only 87 seconds after the worker was 
attached. I added some debug traces:

2020-08-28 09:44:02+ [Broker,2,10.132.169.156] worker 'edelsohn-rhel8-z' 
attaching from IPv4Address(type='TCP', host='10.132.169.156', port=56234)
2020-08-28 09:44:02+ [Broker,2,10.132.169.156] Got workerinfo from 
'edelsohn-rhel8-z'
(...)
2020-08-28 09:45:29+ [Broker,2,10.132.169.156] @ detached: worker=
2020-08-28 09:45:29+ [Broker,2,10.132.169.156] @ detached: TB:   File 
"", line 1, in 
  File 
"/srv/buildbot/venv/lib/python3.8/site-packages/twisted/scripts/twistd.py", 
line 31, in run
app.run(runApp, ServerOptions)
  File 
"/srv/buildbot/venv/lib/python3.8/site-packages/twisted/application/app.py", 
line 674, in run
runApp(config)
  File 
"/srv/buildbot/venv/lib/python3.8/site-packages/twisted/scripts/twistd.py", 
line 25, in runApp
runner.run()
  File 
"/srv/buildbot/venv/lib/python3.8/site-packages/twisted/application/app.py", 
line 385, in run
self.postApplication()
  File 
"/srv/buildbot/venv/lib/python3.8/site-packages/twisted/scripts/_twistd_unix.py",
 line 268, in postApplication
self.startReactor(None, self.oldstdout, self.oldstderr)
  File 
"/srv/buildbot/venv/lib/python3.8/site-packages/twisted/application/app.py", 
line 398, in startReactor
runReactorWithLogging(
  File 
"/srv/buildbot/venv/lib/python3.8/site-packages/twisted/application/app.py", 
line 312, in runReactorWithLogging
reactor.run()
  File 
"/srv/buildbot/venv/lib/python3.8/site-packages/twisted/internet/base.py", line 
1283, in run
self.mainLoop()
  File 
"/srv/buildbot/venv/lib/python3.8/site-packages/twisted/internet/base.py", line 
1295, in mainLoop
self.doIteration(t)
  File 
"/srv/buildbot/venv/lib/python3.8/site-packages/twisted/internet/epollreactor.py",
 line 235, in doPoll
log.callWithLogger(selectable, _drdw, selectable, fd, event)
  File 
"/srv/buildbot/venv/lib/python3.8/site-packages/twisted/python/log.py", line 
103, in callWithLogger
return callWithContext({"system": lp}, func, *args, **kw)
  File 
"/srv/buildbot/venv/lib/python3.8/site-packages/twisted/python/log.py", line 
86, in callWithContext
return context.call({ILogContext: newCtx}, func, *args, **kw)
  File 
"/srv/buildbot/venv/lib/python3.8/site-packages/twisted/python/context.py", 
line 122, in callWithContext
return self.currentContext().callWithContext(ctx, func, *args, **kw)
  File 
"/srv/buildbot/venv/lib/python3.8/site-packages/twisted/python/context.py", 
line 85, in callWithContext
return func(*args,**kw)
  File 
"/srv/buildbot/venv/lib/python3.8/site-packages/twisted/internet/posixbase.py", 
line 627, in _doReadOrWrite
self._disconnectSelectable(selectable, why, inRead)
  File 
"/srv/buildbot/venv/lib/python3.8/site-packages/twisted/internet/posixbase.py", 
line 252, in _disconnectSelectable
selectable.readConnectionLost(f)
  File 
"/srv/buildbot/venv/lib/python3.8/site-packages/twisted/internet/tcp.py", line 
307, in readConnectionLost
self.connectionLost(reason)
  File 
"/srv/buildbot/venv/lib/python3.8/site-packages/twisted/internet/tcp.py", line 
327, in connectionLost
protocol.connectionLost(reason)
  File 
"/srv/buildbot/venv/lib/python3.8/site-packages/twisted/spread/pb.py", line 
717, in connectionLost
notifier()
  File 
"/srv/buildbot/venv/lib/python3.8/site-packages/twisted/spread/pb.py", line 
1572, in maybeLogout
fn()
  File 
"/srv/buildbot/venv/lib/python3.8/site-packages/buildbot/pbmanager.py", line 
190, in 
return (pb.IPerspective, persp, lambda: persp.detached(mind))
  File 
"/srv/buildbot/venv/lib/python3.8/site-packages/buildbot/worker/protocols/pb.py",
 line 155, in detached
import traceback, io; out = io.StringIO(); 
traceback.print_stack(file=out); tb = out.getvalue()

It doesn't say if the client closed the connection on purpose, or if the load 
balancer closed an inactive connection.

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[issue41642] Buildbot: workers detached every minute and "no space left on device" issue

[STINNER Victor]

STINNER Victor  added the comment:

There are multiple errors in the buildbot server logs. I'm not sure if it's 
related or not.

2020-08-28 09:16:25+ [-] while invoking >
Traceback (most recent call last):
  File 
"/srv/buildbot/venv/lib/python3.8/site-packages/twisted/internet/defer.py", 
line 1418, in _inlineCallbacks
result = g.send(result)
  File 
"/srv/buildbot/venv/lib/python3.8/site-packages/buildbot/reporters/http.py", 
line 80, in getMoreInfoAndSend
yield self.send(build)
  File 
"/srv/buildbot/venv/lib/python3.8/site-packages/twisted/internet/defer.py", 
line 1613, in unwindGenerator
return _cancellableInlineCallbacks(gen)
  File 
"/srv/buildbot/venv/lib/python3.8/site-packages/twisted/internet/defer.py", 
line 1529, in _cancellableInlineCallbacks
_inlineCallbacks(None, g, status)
---  ---
  File 
"/srv/buildbot/venv/lib/python3.8/site-packages/buildbot/reporters/http.py", 
line 80, in getMoreInfoAndSend
yield self.send(build)
  File 
"/srv/buildbot/venv/lib/python3.8/site-packages/twisted/internet/defer.py", 
line 1418, in _inlineCallbacks
result = g.send(result)
  File 
"/srv/buildbot/venv/lib/python3.8/site-packages/buildbot/reporters/github.py", 
line 133, in send
m = re.search(r"refs/pull/([0-9]*)/merge", branch)
  File "/usr/lib/python3.8/re.py", line 201, in search
return _compile(pattern, flags).search(string)
builtins.TypeError: expected string or bytes-like object


Error when stopping the server. It seems like this one is just that a client 
tries to reconnect whereas the server is down:

2020-08-28 09:30:43+ [HTTP11ClientProtocol (TLSMemoryBIOProtocol),client] 
BuildMaster is stopped
2020-08-28 09:30:43+ [HTTP11ClientProtocol (TLSMemoryBIOProtocol),client] 
invalid login from unknown user 'ware-win81-release'
2020-08-28 09:30:43+ [HTTP11ClientProtocol (TLSMemoryBIOProtocol),client] 
Peer will receive following PB traceback:
2020-08-28 09:30:43+ [HTTP11ClientProtocol (TLSMemoryBIOProtocol),client] 
Unhandled Error
Traceback (most recent call last):
  File 
"/srv/buildbot/venv/lib/python3.8/site-packages/twisted/internet/defer.py", 
line 460, in callback
self._startRunCallbacks(result)
  File 
"/srv/buildbot/venv/lib/python3.8/site-packages/twisted/internet/defer.py", 
line 568, in _startRunCallbacks
self._runCallbacks()
  File 
"/srv/buildbot/venv/lib/python3.8/site-packages/twisted/internet/defer.py", 
line 654, in _runCallbacks
current.result = callback(current.result, *args, **kw)
  File 
"/srv/buildbot/venv/lib/python3.8/site-packages/twisted/internet/defer.py", 
line 1475, in gotResult
_inlineCallbacks(r, g, status)
---  ---
  File 
"/srv/buildbot/venv/lib/python3.8/site-packages/twisted/internet/defer.py", 
line 1418, in _inlineCallbacks
result = g.send(result)
  File 
"/srv/buildbot/venv/lib/python3.8/site-packages/buildbot/pbmanager.py", line 
217, in requestAvatarId
eventually(self.master.initLock.release)
builtins.AttributeError: 'NoneType' object has no attribute 'initLock'

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[issue22577] local variable changes lost after pdb jump command

[Irit Katriel]

Irit Katriel  added the comment:

This is now resolved, on Python 3.10 I get:

>python -m pdb tmp1.py
Running Release|Win32 interpreter...
> c:\users\user\src\cpython\tmp1.py(1)()
-> def foo(x):
(Pdb) jump 4
> c:\users\user\src\cpython\tmp1.py(4)()
-> lineno = 4
(Pdb) q

C:\Users\User\src\cpython>python -m pdb tmp1.py
Running Release|Win32 interpreter...
> c:\users\user\src\cpython\tmp1.py(1)()
-> def foo(x):
(Pdb) x=123
(Pdb) jump 4
> c:\users\user\src\cpython\tmp1.py(4)()
-> lineno = 4
(Pdb) x
123
(Pdb)


I believe this ticket can be closed.

--
nosy: +iritkatriel

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[issue41649] Can't pass Path like objects to subprocess api's on Windows.

[Jani Mikkonen]

Jani Mikkonen  added the comment:

@xtreak

I went thru the comments of the report you linked. It definitely looks like the 
discussion was related  but it didnt really fix the issue here.

https://bugs.python.org/issue31961#msg311775 without trying out, that comment 
actually touches the underlying issue, on windows, list2cmdline throws that 
typeerror because iterated argument list (output_directory in my example) is 
WindowsPath and thus not iterable and and testing the arg with "in" operator 
fails ..

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[issue41642] Buildbot: workers detached every minute and "no space left on device" issue

[STINNER Victor]

STINNER Victor  added the comment:

I added keepalive_interval=60 parameter to Worker() in the server configuration:
https://github.com/python/buildmaster-config/commit/2d28a4cfe77a3e206028613524a1e938801a1655

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[issue41642] Buildbot: workers detached every minute and "no space left on device" issue

[STINNER Victor]

STINNER Victor  added the comment:

> The buildbot server migrated to a new machine and is now behind a load 
> balancer. tcp/80 (buildbot web page, HTTP) and tcp/9020 (used by buildbot 
> workers) are both behind the load balancer.
> (...)
> Buildbot workers have a TCP keepalive option of 1 hour (3600 seconds) by 
> default (...)

Ernest confirmed that there are edge load balancers for the PSF infra in 
DigitalOcean. He updated the load balancers to offer a full 24 hour timeout on 
buildbot TCP connections. (Yesterday around 17:30 UTC.)

It seems like it doesn't fix the issue. Example in server logs:

(...)
2020-08-28 08:21:55+ [Broker,50831,10.132.169.157] 
Worker.detached(koobs-freebsd-564d)
2020-08-28 08:23:25+ [Broker,50856,10.132.169.157] 
Worker.detached(koobs-freebsd-564d)
2020-08-28 08:24:55+ [Broker,50881,10.132.169.157] 
Worker.detached(koobs-freebsd-564d)
2020-08-28 08:26:26+ [Broker,50906,10.132.169.157] 
Worker.detached(koobs-freebsd-564d)
2020-08-28 08:27:56+ [Broker,50931,10.132.169.156] 
Worker.detached(koobs-freebsd-564d)
(...)

--
title: RHEL and fedora buildbots fail due to disk space error -> Buildbot: 
workers detached every minute and "no space left on device" issue

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[issue41652] An Advice on Turning Ellipsis into Keyword

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

There is Ellipsis class in the ast module. Although it is deprecated now. But I 
there may be Ellipsis names also in third-party libraries. Making Ellipsis a 
keyword would break them.

--
nosy: +serhiy.storchaka

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[issue41652] An Advice on Turning Ellipsis into Keyword

[Josh Rosenberg]

Josh Rosenberg  added the comment:

You can do the same thing to replace int, float, dict, len, and all the other 
built-in classes and functions. Why is Ellipsis so special that it needs 
protection, especially when, as you note, ... is an available unoverrideable 
way to refer to it? Making new keywords is a high bar (because it can break 
existing code). What justifies this one beyond "don't want folks to mess with a 
barely used name"?

--
nosy: +josh.r

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