[issue35579] Typo in in asyncio-task documentation

[miss-islington]

miss-islington  added the comment:


New changeset 3a81076bbf899b1a549f005dd9299e7ae0946321 by Miss Islington (bot) 
(Vaibhav Gupta) in branch 'master':
bpo-35579: Fix typo in in asyncio-task documentation (GH-11321)
https://github.com/python/cpython/commit/3a81076bbf899b1a549f005dd9299e7ae0946321


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[issue35579] Typo in in asyncio-task documentation

[miss-islington]

miss-islington  added the comment:


New changeset dcf14d1a9875143747cd87c66fae6e693b21c6de by Miss Islington (bot) 
in branch '3.7':
bpo-35579: Fix typo in in asyncio-task documentation (GH-11321)
https://github.com/python/cpython/commit/dcf14d1a9875143747cd87c66fae6e693b21c6de


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[issue35189] PEP 475: fnctl functions are not retried if interrupted by a signal (EINTR)

[Michael Felt]

Michael Felt  added the comment:

I have not looked at 3.6, but I have bisected the 3.7 and 3.8 branches for AIX. 
I get:

On 3.7 Branch:
Bisecting: 0 revisions left to test after this (roughly 0 steps)
[56742f1eb05401a27499af0ccdcb4e4214859fd1] [3.7] bpo-35189: Retry fnctl calls 
on EINTR (GH-10413) (GH-10678)

On 3.8 Branch:
Bisecting: 0 revisions left to test after this (roughly 0 steps)
[b409ffa848b280c1db1b4f450bfae14f263099ac] bpo-35189: Retry fnctl calls on 
EINTR (GH-10413)

So, my assumption is that the PR-10413 is not 100% correct for AIX.

Will look further, but also request - will this issue reopen, or do we need a 
new issue?

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[issue35189] PEP 475: fnctl functions are not retried if interrupted by a signal (EINTR)

[Michael Felt]

Michael Felt  added the comment:

Forgot to include the test failure message:

==
FAIL: test_all (test.test_eintr.EINTRTests)
--
Traceback (most recent call last):
  File "/data/prj/python/git/python3-3.8/Lib/test/test_eintr.py", line 18, in 
test_all
script_helper.assert_python_ok("-u", tester)
  File "/data/prj/python/git/python3-3.8/Lib/test/support/script_helper.py", 
line 157, in assert_python_ok
return _assert_python(True, *args, **env_vars)
  File "/data/prj/python/git/python3-3.8/Lib/test/support/script_helper.py", 
line 143, in _assert_python
res.fail(cmd_line)
  File "/data/prj/python/git/python3-3.8/Lib/test/support/script_helper.py", 
line 70, in fail
raise AssertionError("Process return code is %d\n"
AssertionError: Process return code is 1
command line: ['/data/prj/python/python3-3.8/python', '-X', 'faulthandler', 
'-I', '-u', 
'/data/prj/python/git/python3-3.8/Lib/test/eintrdata/eintr_tester.py']

stdout:
---

---

stderr:
---
.E..sss.
==
ERROR: test_lockf (__main__.FNTLEINTRTest)
--
Traceback (most recent call last):
  File "/data/prj/python/git/python3-3.8/Lib/test/eintrdata/eintr_tester.py", 
line 522, in test_lockf
self._lock(fcntl.lockf, "lockf")
  File "/data/prj/python/git/python3-3.8/Lib/test/eintrdata/eintr_tester.py", 
line 507, in _lock
lock_func(f, fcntl.LOCK_EX | fcntl.LOCK_NB)
PermissionError: [Errno 13] Permission denied

--
Ran 24 tests in 9.692s

FAILED (errors=1, skipped=3)
---

--

Ran 1 test in 10.404s

FAILED (failures=1)
test test_eintr failed
test_eintr failed

== Tests result: FAILURE ==

1 test failed:
test_eintr

Total duration: 10 sec 645 ms

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[issue35579] Typo in in asyncio-task documentation

[Antoine Wecxsteen]

Antoine Wecxsteen  added the comment:

Thank you all.

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[issue35121] Cookie domain check returns incorrect results

[Karthikeyan Singaravelan]

Karthikeyan Singaravelan  added the comment:

I have come across another behavior change between path checks while using the 
cookie jar implementation available in Python. This is related to incorrect 
cookie validation but with respect to path so let me know if this needs a 
separate ticket. I observed the following difference : 

1. Make a request to "/" that sets a cookie with "path=/any"
2. Make a request to "/any" and the set cookie is passed since the path matches
3. Make a request to "/anybad" and cookie with "path=/any" is also passed too.

On using golang stdlib implementation of cookiejar the cookie "path=/any" is 
not passed when a request to "/anybad" is made. So I checked with RFC 6265 
where the path match check is defined in section-5.1.4 . RFC 6265 also 
obsoletes RFC 2965 upon which cookiejar is based I hope since original 
implementation of cookiejar is from 2004 and RFC 6265 was standardized later. 
So I think it's good to enforce RFC 6265 since RFC 2965 is obsolete at least in 
Python 3.8 unless this is considered as a security issue. I think this is a 
security issue. The current implementation can potentially cause cookies to be 
sent to incorrect paths in the same domain that share the same prefix. This is 
a behavior change with more strict checks but I could see no tests failing with 
RFC 6265 implementation too.

RFC 2965 also gives a loose definition of path-match without mentioning about / 
check in the paths based on which Python implementation is based as a simple 
prefix match.

> For two strings that represent paths, P1 and P2, P1 path-matches P2
> if P2 is a prefix of P1 (including the case where P1 and P2 string-
> compare equal).  Thus, the string /tec/waldo path-matches /tec.

RFC 6265 path-match definition : 
https://tools.ietf.org/html/rfc6265#section-5.1.4

   A request-path path-matches a given cookie-path if at least one of
   the following conditions holds:

   o  The cookie-path and the request-path are identical.

   o  The cookie-path is a prefix of the request-path, and the last
  character of the cookie-path is %x2F ("/").

   o  The cookie-path is a prefix of the request-path, and the first
  character of the request-path that is not included in the cookie-
  path is a %x2F ("/") character.

The current implementation in cookiejar is as below : 

def path_return_ok(self, path, request):
_debug("- checking cookie path=%s", path)
req_path = request_path(request)
if not req_path.startswith(path):
_debug("  %s does not path-match %s", req_path, path)
return False
return True

Translating the RFC 6265 steps (a literal translation of go implementation) 
would have something like below and no tests fail on master. So the python 
implementation goes in line with the RFC not passing cookies of "path=/any" to 
/anybody

def path_return_ok(self, path, request):
req_path = request_path(request)
if req_path == path:
return True
elif req_path.startswith(path) and ((path.endswith("/") or 
req_path[len(path)] == "/")):
return True

return False


The golang implementation is as below which is a literal translation of RFC 
6265 steps at 
https://github.com/golang/go/blob/50bd1c4d4eb4fac8ddeb5f063c099daccfb71b26/src/net/http/cookiejar/jar.go#L130

// pathMatch implements "path-match" according to RFC 6265 section 5.1.4.
func (e *entry) pathMatch(requestPath string) bool {
if requestPath == e.Path {
return true
}
if strings.HasPrefix(requestPath, e.Path) {
if e.Path[len(e.Path)-1] == '/' {
return true // The "/any/" matches "/any/path" case.
} else if requestPath[len(e.Path)] == '/' {
return true // The "/any" matches "/any/path" case.
}
}
return false
}


Feel free to correct me if I am wrong on the above.

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[issue13927] Extra spaces in the output of time.ctime

[Harmandeep Singh]

Harmandeep Singh  added the comment:

I have created a PR for the patch that I submitted, as this is my first 
contribution to the docs, I need to know that how do we decide if a change has 
to make an entry to `Misc/NEWS.d/next/` or needs `skip news` tag?

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[issue35590] logging.handlers.SysLogHandler with STREAM connects in constructor without timeout

[jso2460]

jso2460  added the comment:

Yes, when timeout occurs it's then caught by the OSError -- you are completely 
right about that.

Instead my suggestion was meant to provide an option to specify a timeout when 
creating an instance of SysLogHandler. Currently the socket is created with 
default timeout (which is AFAIK set via socket.setdefaulttimeout though this 
applies to the whole module and effectively affects other sockets created).

In my particular use case I have the SysLog settings user-configurable, and 
thus sometimes it gets misconfigured. Then it is annoying to wait for a default 
timeout.. and there seem no way to specify the particular timeout when creating 
the handler. 
(Not speaking of the fact that SysLogHandler connects right away in __init__ 
call which I don't consider very reasonable but that would be a different 
story.)

Therefore I suggest to either add new argument for timeout (as the example in 
my comment above), or to wrap the socket creation into a method/function which 
an extending class could extend/implement, e.g. by changing:

sock = socket.socket(af, socktype, proto)
if socktype == socket.SOCK_STREAM:
sock.connect(sa)

to

def _create_socket(af, socktype, proto): # or adding *args, **kwargs?
socket.socket(af, socktype, proto)

sock = create_socket(af, socktype, proto) 
if socktype == socket.SOCK_STREAM:
sock.connect(sa)


By the way, thanks for marking the issue as enhancement. Kind of missed that 
when creating the issue at first.

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[issue35593] Register standard browser: Chrome

[Emmanuel Arias]

New submission from Emmanuel Arias :

Hi!

This issue is open to discuss the PR: 
https://github.com/python/cpython/pull/11327

This PR propose add "chrome" on webbrowser.register_standard_browsers for 
windows

IMO this is a reasonable new feature simply because Chrome is commonly used.

--
components: Library (Lib)
messages: 332586
nosy: eamanu
priority: normal
severity: normal
status: open
title: Register standard browser: Chrome
type: behavior
versions: Python 3.8

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[issue20182] Derby #13: Convert 50 sites to Argument Clinic across 5 files

[Tal Einat]

Tal Einat  added the comment:


New changeset c6c7237272499b2c528acb5f62601421f329e92a by Tal Einat in branch 
'master':
bpo-20182: AC convert remaining functions/methods in _hashopenssl.c (GH-9213)
https://github.com/python/cpython/commit/c6c7237272499b2c528acb5f62601421f329e92a


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[issue20182] Derby #13: Convert 50 sites to Argument Clinic across 5 files

[Tal Einat]

Tal Einat  added the comment:

The conversion of Modules/_hashopenssh.c leaves just Python/sysmodule.c to be 
converted from this batch.

There's an old patch here from 3.5 years ago that will likely need to be 
heavily updated.

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[issue20182] Derby #13: Convert 50 sites to Argument Clinic across 5 files

[Tal Einat]

Change by Tal Einat :


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[issue20182] Derby #13: Convert 50 sites to Argument Clinic across 5 files

[Tal Einat]

Tal Einat  added the comment:

The conversion of Modules/_hashopenssl.c leaves just Python/sysmodule.c to be 
converted from this batch.

There's an old patch here from 3.5 years ago that will likely need to be 
heavily updated.

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[issue20182] Derby #13: Convert 50 sites to Argument Clinic across 5 files

[Tal Einat]

Tal Einat  added the comment:


New changeset c6c7237272499b2c528acb5f62601421f329e92a by Tal Einat in branch 
'master':
bpo-20182: AC convert remaining functions/methods in _hashopenssl.c (GH-9213)
https://github.com/python/cpython/commit/c6c7237272499b2c528acb5f62601421f329e92a


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[issue35189] PEP 475: fnctl functions are not retried if interrupted by a signal (EINTR)

[Michael Felt]

Michael Felt  added the comment:

The "improved" output after getting back to "latest" commit:

== CPython 3.8.0a0 (heads/master-dirty:34ae04f74d, Dec 27 2018, 14:05:08) [C]
== AIX-1-00C291F54C00-powerpc-32bit big-endian
== cwd: /data/prj/python/python3-3.8/build/test_python_13566116
== CPU count: 8
== encodings: locale=ISO8859-1, FS=iso8859-1
Run tests sequentially
0:00:00 [1/1] test_eintr
test_all (test.test_eintr.EINTRTests) ...
--- run eintr_tester.py ---
test_flock (__main__.FNTLEINTRTest) ... ok
test_lockf (__main__.FNTLEINTRTest) ... ERROR
test_read (__main__.OSEINTRTest) ... ok
test_wait (__main__.OSEINTRTest) ... ok
test_wait3 (__main__.OSEINTRTest) ... ok
test_wait4 (__main__.OSEINTRTest) ... ok
test_waitpid (__main__.OSEINTRTest) ... ok
test_write (__main__.OSEINTRTest) ... ok
test_devpoll (__main__.SelectEINTRTest) ... skipped 'need select.devpoll'
test_epoll (__main__.SelectEINTRTest) ... skipped 'need select.epoll'
test_kqueue (__main__.SelectEINTRTest) ... skipped 'need select.kqueue'
test_poll (__main__.SelectEINTRTest) ... ok
test_select (__main__.SelectEINTRTest) ... ok
test_sigtimedwait (__main__.SignalEINTRTest) ... ok
test_sigwaitinfo (__main__.SignalEINTRTest) ... ok
test_accept (__main__.SocketEINTRTest) ... ok
test_open (__main__.SocketEINTRTest) ... ok
test_os_open (__main__.SocketEINTRTest) ... ok
test_recv (__main__.SocketEINTRTest) ... ok
test_recvmsg (__main__.SocketEINTRTest) ... ok
test_send (__main__.SocketEINTRTest) ... ok
test_sendall (__main__.SocketEINTRTest) ... ok
test_sendmsg (__main__.SocketEINTRTest) ... ok
test_sleep (__main__.TimeEINTRTest) ... ok

==
ERROR: test_lockf (__main__.FNTLEINTRTest)
--
Traceback (most recent call last):
  File "/data/prj/python/git/python3-3.8/Lib/test/eintrdata/eintr_tester.py", 
line 522, in test_lockf
self._lock(fcntl.lockf, "lockf")
  File "/data/prj/python/git/python3-3.8/Lib/test/eintrdata/eintr_tester.py", 
line 507, in _lock
lock_func(f, fcntl.LOCK_EX | fcntl.LOCK_NB)
PermissionError: [Errno 13] Permission denied

--
Ran 24 tests in 8.822s

FAILED (errors=1, skipped=3)
--- eintr_tester.py completed: exit code 1 ---
FAIL

==
FAIL: test_all (test.test_eintr.EINTRTests)
--
Traceback (most recent call last):
  File "/data/prj/python/git/python3-3.8/Lib/test/test_eintr.py", line 31, in 
test_all
self.fail("eintr_tester.py failed")
AssertionError: eintr_tester.py failed

--

Ran 1 test in 9.392s

FAILED (failures=1)
test test_eintr failed
test_eintr failed

== Tests result: FAILURE ==

1 test failed:
test_eintr

Total duration: 9 sec 609 ms
Tests result: FAILURE

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[issue35594] Python script generating Segmentation Fault

[Daugeras]

New submission from Daugeras :

Python script generates segmentation fault I cannot find the source of the 
problem. How is it to debug a segfault simply in Python ? Are there recommended 
coding practices to avoid Segmentation Faults ?

I wrote a script (1600 lines) to systematically download CSV files from a 
source and format the collected data. The script works very well for 100-200 
files, but it systematically crashes with a segmentation fault message after a 
while.
-Crash always happens at the same spot in the script, with no understandable 
cause -I run it on Mac OSX but the crash also happens on Ubuntu Linux and 
Debian 9 -If I run the Pandas Routines that crash during my script on single 
files, they work properly. The crash only happens when I loop the script 
100-200 times. -I checked every variable content, constructors (init) and they 
seem to be fine.

Code is too long to be pasted, but available on demand

Expected result should be execution to the end. Instead, it crashes after 
100-200 iterations

--
messages: 332592
nosy: Daugeras
priority: normal
severity: normal
status: open
title: Python script generating Segmentation Fault
type: crash
versions: Python 3.7

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[issue35595] Add sys flag to always show full paths in stack traces (instead of relative paths)

[Scott Arciszewski]

New submission from Scott Arciszewski :

I have a wsgi script writing to a log file. The contents look like this 
(truncated):

  File "build/bdist.linux-x86_64/egg/trac/ticket/query.py", line 284, in _count
% sql, args)[0][0]
  File "build/bdist.linux-x86_64/egg/trac/db/api.py", line 122, in execute
return db.execute(query, params)
  File "build/bdist.linux-x86_64/egg/trac/db/util.py", line 128, in execute
cursor.execute(query, params if params is not None else [])

When confronted with this logfile, I have no idea where 
build/bdist.linux-x86_64 lives. Rather than hoping a well-timed lsof is 
adequate to catch the actual script path, I'd like to be able to set a sys.flag 
to always log the real, fullpath of the .py script either instead of, or 
alongside, the file path.

--
messages: 332593
nosy: Scott Arciszewski
priority: normal
severity: normal
status: open
title: Add sys flag to always show full paths in stack traces (instead of 
relative paths)
versions: Python 2.7, Python 3.8

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[issue20182] Derby #13: Convert 50 sites to Argument Clinic across 5 files

[Tal Einat]

Change by Tal Einat :


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[issue20182] Derby #13: Convert 50 sites to Argument Clinic across 5 files

[Tal Einat]

Change by Tal Einat :


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[issue20182] Derby #13: Convert 50 sites to Argument Clinic across 5 files

[Tal Einat]

Change by Tal Einat :


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[issue20182] Derby #13: Convert 50 sites to Argument Clinic across 5 files

[Tal Einat]

Tal Einat  added the comment:

See new PR GH-11328 with updated AC conversion of Python/sysmodule.c.

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[issue35596] Fatal Python error: initfsencoding: unable to load the file system codec zipimport.ZipImportError: can't find module 'encodings'

[hyu]

New submission from hyu :

>python
Fatal Python error: initfsencoding: unable to load the file system codec
zipimport.ZipImportError: can't find module 'encodings'

There are two vcruntime140.dll with no binary diff.
 Date  Time Attr Size   Compressed   Name
--- -    
2018-12-10 22:06:34 .8012845532  vcruntime140.dll
...
2018-12-10 22:06:34 .8012845532  vcruntime140.dll

Repeated downloads. Checked both versions:
https://www.python.org/ftp/python/3.7.2/python-3.7.2-embed-amd64.zip
https://www.python.org/ftp/python/3.7.2/python-3.7.2-embed-win32.zip

Searched and read release and doc. Checked bugs since yesterday.

--
messages: 332595
nosy: hyu
priority: normal
severity: normal
status: open
title: Fatal Python error: initfsencoding: unable to load the file system codec 
zipimport.ZipImportError: can't find module 'encodings'
versions: Python 3.7

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[issue35597] Bug in Python's compiler

[Fady shehata]

New submission from Fady shehata :

this code is completely right , and its trace is right and give the correct 
result but your compiler give me an incorrect result. if we input 1010 it must 
give 10, the compiler give ten but uncollected ten like 1122 and if we 
input 111 it's output by your compiler is 1123

--
components: Windows
files: Capture.PNG
messages: 332596
nosy: Fady shehata, paul.moore, steve.dower, tim.golden, zach.ware
priority: normal
severity: normal
status: open
title: Bug in Python's compiler
type: compile error
versions: Python 3.7
Added file: https://bugs.python.org/file48017/Capture.PNG

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[issue35597] Bug in Python's compiler

[Tim Peters]

Tim Peters  added the comment:

`input()` returns a string, not a list.  For input '1010' you're effectively 
computing this:

>>> int('1' * 8) + int('1' * 2) # =  + 11
1122

which is the correct answer.  If you want your input to be a list of integers 
instead of a string, try, e.g.,

a = input("please enter a binary integer ")
a = list(map(int, a))

--
nosy: +tim.peters
resolution:  -> not a bug
stage:  -> resolved
status: open -> closed

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[issue35597] Bug in Python's compiler

[Stefan Behnel]

Stefan Behnel  added the comment:

I have no doubts that the code is right. However, your expectations might not 
be.

Try to print the values inside of the loop, for each iteration, as well as 
their type. You'll likely be surprised what that gives.

(In any case, this is not a bug. If you need help in understanding what's going 
on here, please ask on the Python mailing list, or consult a local Python 
meetup.)

--
nosy: +scoder, tim.peters
resolution:  -> not a bug
stage:  -> resolved
status: open -> closed

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[issue35597] Bug in Python's compiler

[Fady shehata]

Fady shehata  added the comment:

you didn't understand me, look, if we put (10) in binary it will give (2)
in decimal because ((0*2**0)+(1*2**1), but it gives the tow like that 11 it
means if we add the digits in the result we will get the right result


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<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

On Thu, 27 Dec 2018 at 18:34, Tim Peters  wrote:

>
> Tim Peters  added the comment:
>
> `input()` returns a string, not a list.  For input '1010' you're
> effectively computing this:
>
> >>> int('1' * 8) + int('1' * 2) # =  + 11
> 1122
>
> which is the correct answer.  If you want your input to be a list of
> integers instead of a string, try, e.g.,
>
> a = input("please enter a binary integer ")
> a = list(map(int, a))
>
> --
> nosy: +tim.peters
> resolution:  -> not a bug
> stage:  -> resolved
> status: open -> closed
>
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> 
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[issue35597] Bug in Python's compiler

[Fady shehata]

Fady shehata  added the comment:

look at this if we input (1011) in binary it must give eleven in decimal
but it gives uncollected eleven like 1123 if we add the digits in this
result we will get the right result eleven
[image: Capture2.PNG]


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On Thu, 27 Dec 2018 at 18:34, Tim Peters  wrote:

>
> Tim Peters  added the comment:
>
> `input()` returns a string, not a list.  For input '1010' you're
> effectively computing this:
>
> >>> int('1' * 8) + int('1' * 2) # =  + 11
> 1122
>
> which is the correct answer.  If you want your input to be a list of
> integers instead of a string, try, e.g.,
>
> a = input("please enter a binary integer ")
> a = list(map(int, a))
>
> --
> nosy: +tim.peters
> resolution:  -> not a bug
> stage:  -> resolved
> status: open -> closed
>
> ___
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> 
> ___
>

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[issue35597] Bug in Python's compiler

[Tim Peters]

Tim Peters  added the comment:

Please read my answer again.  Your code does not do what you _think_ it does.  
It does what I said it does instead.

>>> a = input()
1010
>>> print(a)
1010
>>> print(type(a))


The input you're working with is NOT A LIST OF INTEGERS.  It's a string of "0" 
and "1" CHARACTERS.

And I already told you how to repair that too:

>>> a = list(map(int, a))
>>> a
[1, 0, 1, 0]
>>> type(a)


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[issue35597] Bug in Python's compiler

[Fady shehata]

Fady shehata  added the comment:

yea yea i understand you and you are right thank you and sorry for this
miss understanding 😊


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<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

On Thu, 27 Dec 2018 at 18:50, Tim Peters  wrote:

>
> Tim Peters  added the comment:
>
> Please read my answer again.  Your code does not do what you _think_ it
> does.  It does what I said it does instead.
>
> >>> a = input()
> 1010
> >>> print(a)
> 1010
> >>> print(type(a))
> 
>
> The input you're working with is NOT A LIST OF INTEGERS.  It's a string of
> "0" and "1" CHARACTERS.
>
> And I already told you how to repair that too:
>
> >>> a = list(map(int, a))
> >>> a
> [1, 0, 1, 0]
> >>> type(a)
> 
>
> --
>
> ___
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> 
> ___
>

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[issue35583] (glibc2.28/MIPS32EL) python 3.7.x interpreter segmentation fault (3.6.x/2.7.x compile fine)

[Mariatta Wijaya]

Mariatta Wijaya  added the comment:

Your disrespectful comments and insults are not welcome here.

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[issue35596] Fatal Python error: initfsencoding: unable to load the file system codec zipimport.ZipImportError: can't find module 'encodings'

[Ned Deily]

Change by Ned Deily :


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nosy: +paul.moore, steve.dower, tim.golden, zach.ware

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[issue35594] Python script generating Segmentation Fault

[Ned Deily]

Ned Deily  added the comment:

Sorry, but without either a full traceback or code that reproduces the problem, 
it is impossible for us to make an intelligent guess what problem you are 
seeing much less suggestion a solution.

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[issue35583] (glibc2.28/MIPS32EL) python 3.7.x interpreter segmentation fault (3.6.x/2.7.x compile fine)

[Gagan]

Gagan  added the comment:

of course you have more time to get sanctimonious than provide a substantive or 
insight comment as to what the problem is.

i am not surprised, at all.

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[issue35594] Python script generating Segmentation Fault

[Daugeras]

Daugeras  added the comment:

@Ned: Of course I understand your feed-back. I can provide a script to 
reproduce the crash. How can I do this ?

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[issue20182] Derby #13: Convert 50 sites to Argument Clinic across 5 files

[Tal Einat]

Tal Einat  added the comment:


New changeset c6c7237272499b2c528acb5f62601421f329e92a by Tal Einat in branch 
'master':
bpo-20182: AC convert remaining functions/methods in _hashopenssl.c (GH-9213)
https://github.com/python/cpython/commit/c6c7237272499b2c528acb5f62601421f329e92a


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[issue20182] Derby #13: Convert 50 sites to Argument Clinic across 5 files

[Tal Einat]

Tal Einat  added the comment:


New changeset c6c7237272499b2c528acb5f62601421f329e92a by Tal Einat in branch 
'master':
bpo-20182: AC convert remaining functions/methods in _hashopenssl.c (GH-9213)
https://github.com/python/cpython/commit/c6c7237272499b2c528acb5f62601421f329e92a


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[issue20182] Derby #13: Convert 50 sites to Argument Clinic across 5 files

[Tal Einat]

Tal Einat  added the comment:


New changeset c6c7237272499b2c528acb5f62601421f329e92a by Tal Einat in branch 
'master':
bpo-20182: AC convert remaining functions/methods in _hashopenssl.c (GH-9213)
https://github.com/python/cpython/commit/c6c7237272499b2c528acb5f62601421f329e92a


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[issue35596] Fatal Python error: initfsencoding: unable to load the file system codec zipimport.ZipImportError: can't find module 'encodings'

[Steve Dower]

Steve Dower  added the comment:

Have you tried a proper install as well? Could you do that to rule out any 
problem on your machine?

Are you repackaging anything as part of your app, or are you just testing the 
package first and getting this error?

It looks like you're running from the directory you extracted to. Is there 
anything else in that directory or just the Python files?

When you say there are two vcruntime140.dll, you mean one in each package and 
they're the same? That might be a problem, but it wouldn't show up like this, 
so I don't think it's yours. I'm not in A position to check the files right now 
but I'll get to it later

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[issue35594] Python script generating Segmentation Fault

[Ned Deily]

Ned Deily  added the comment:

You can either paste or upload a file (click on the "Choose File" button above 
in the web page) with code or with crash info.  For crash info, depending on 
the platform, there may be a Python traceback displayed in the shell session 
and there may be some sort of system-generated crash report, for example, on 
macOS, you might find them in ~/Library/Logs.  You should also include 
information about the platform (os, os version) and the Python version in use.  
With recent versions of Python and if tests are installed, you can get all the 
configuration information with one command, for example:

python3.7 -m test.pythoninfo

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[issue35596] Fatal Python error: initfsencoding: unable to load the file system codec zipimport.ZipImportError: can't find module 'encodings'

[Steve Dower]

Steve Dower  added the comment:

Okay, this looks like a zipimport issue. When I extract the "python37.zip" file 
containing the stdlib and reference the directory it works fine. But no matter 
what I do to the ZIP I can't get it to run.

It seems that zipimport either can't import .pyc files without a matching .py, 
or it can't import packages marked with __init__.pyc (I haven't gone deep 
enough, but adding encodings/__init__.py got me further).

This is a regression from 3.7.1.

Things to do:
* fix the regression (Serhiy?)
* add a regression test
* add a ".pyc-only stdlib in ZIP" test (I'll do this)
* remove the double vcruntime in ZIP issue (unrelated, so I'll just fix it)

--
nosy: +ned.deily, serhiy.storchaka
priority: normal -> release blocker
stage:  -> test needed
type:  -> crash

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[issue35402] Upgrade macOS and Windows installers to Tcl 8.6.9 and Tk 8.6.9.1

[Ned Deily]

Ned Deily  added the comment:


New changeset c540c4ec611246da0c1900fe11a807a54f5c2a0c by Ned Deily in branch 
'2.7':
Revert "bpo-35402: Update macOS installer to use Tcl 8.6.9 / Tk 8.6.9.1 
(GH-11101)"
https://github.com/python/cpython/commit/c540c4ec611246da0c1900fe11a807a54f5c2a0c


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[issue35596] Fatal Python error: initfsencoding: unable to load the file system codec zipimport.ZipImportError: can't find module 'encodings'

[Steve Dower]

Change by Steve Dower :


--
keywords: +patch
pull_requests: +10594
stage: test needed -> patch review

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[issue35596] Fatal Python error: initfsencoding: unable to load the file system codec zipimport.ZipImportError: can't find module 'encodings'

[Steve Dower]

Change by Steve Dower :


--
keywords: +patch, patch
pull_requests: +10594, 10595
stage: test needed -> patch review

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[issue35596] Fatal Python error: initfsencoding: unable to load the file system codec zipimport.ZipImportError: can't find module 'encodings'

[Steve Dower]

Change by Steve Dower :


--
keywords: +patch, patch, patch
pull_requests: +10594, 10595, 10596
stage: test needed -> patch review

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[issue35598] IDLE: Modernize config_key module

[Cheryl Sabella]

New submission from Cheryl Sabella :

* Apply PEP8 naming convention.
* Add additional tests to get coverage (close?) to 100%.
* Update to more meaningful names.
* Switch to ttk widgets and revise imports.
* Split toplevel class into a window class and frame class(es).

--
assignee: terry.reedy
components: IDLE
messages: 332614
nosy: cheryl.sabella, terry.reedy
priority: normal
severity: normal
status: open
title: IDLE: Modernize config_key module
type: enhancement
versions: Python 3.8

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[issue35596] Fatal Python error: initfsencoding: unable to load the file system codec zipimport.ZipImportError: can't find module 'encodings'

[hyu]

hyu  added the comment:

Repeated on two clean install Windows hosts.
No (re)packaging, download and run/start python.
Repeated with versions 3.7.2, 3.7.1, and 3.6.8:

https://www.python.org/ftp/python/3.7.2/python-3.7.2-embed-amd64.zip
https://www.python.org/ftp/python/3.7.1/python-3.7.1-embed-amd64.zip
https://www.python.org/ftp/python/3.6.8/python-3.6.8-embed-amd64.zip

Windows Explorer properly extracted: \tmp\py372, \tmp\py371, \tmp\py368.
Python 3.6.8 and 3.7.1 properly started, executed import sys; sys.exit()
Python 3.7.2 failed to start.  Please suggest proper commands if you claim 
these are not proper Windows commands.

Worked extra to show both 3.6 and 3.7 regressions.  If you want to claim 
copying 3.6.8 vcruntime140.dll to 3.7.1 as (re)packaging, then ignore 
v3.7.1:260ec2c36a below.  

Windows Explorer shows and 7-zip lists two vcruntime140.dll in 3.7.2.  Please 
ignore 7-zip if you claim that is not proper or (re)package tool and I will 
attach Windows Explorer screen shot.


Microsoft Windows [Version 10.0.17763.195]
(c) 2018 Microsoft Corporation. All rights reserved.

C:\>\tmp\py368\python
Python 3.6.8 (tags/v3.6.8:3c6b436a57, Dec 24 2018, 00:16:47) [MSC v.1916 64 bit 
(AMD64)] on win32
>>> import sys; sys.exit()

C:\>\tmp\py372\python
Fatal Python error: initfsencoding: unable to load the file system codec
zipimport.ZipImportError: can't find module 'encodings'

Current thread 0x2614 (most recent call first):

C:\>copy \tmp\py368\vcruntime140.dll \tmp\py371\
1 file(s) copied.

C:\>\tmp\py371\python
Python 3.7.1 (v3.7.1:260ec2c36a, Oct 20 2018, 14:57:15) [MSC v.1915 64 bit 
(AMD64)] on win32
>>> import sys; sys.exit()

C:\>

--
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type: crash -> 

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[issue35596] Fatal Python error: initfsencoding: unable to load the file system codec zipimport.ZipImportError: can't find module 'encodings'

[Steve Dower]

Steve Dower  added the comment:

Thanks for the extra info, and for confirming that 3.6.8 isn't affected (I 
hadn't tried that you, so you saved me some work :) )

This is definitely a new zipimport regression in 3.7.2. Thanks for the report.

--
keywords: +3.7regression -patch, patch
versions: +Python 3.8

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[issue35598] IDLE: Modernize config_key module

[Cheryl Sabella]

Change by Cheryl Sabella :


--
keywords: +patch
pull_requests: +10597
stage:  -> patch review

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[issue35598] IDLE: Modernize config_key module

[Cheryl Sabella]

Change by Cheryl Sabella :


--
keywords: +patch, patch
pull_requests: +10597, 10598
stage:  -> patch review

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[issue35598] IDLE: Modernize config_key module

[Cheryl Sabella]

Change by Cheryl Sabella :


--
keywords: +patch, patch, patch
pull_requests: +10597, 10598, 10599
stage:  -> patch review

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[issue35598] IDLE: Modernize config_key module

[Cheryl Sabella]

Cheryl Sabella  added the comment:

PR11330 is for the PEP8 naming conventions.

--
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[issue35596] Fatal Python error: initfsencoding: unable to load the file system codec zipimport.ZipImportError: can't find module 'encodings'

[miss-islington]

miss-islington  added the comment:


New changeset 59c2aa25ffc864bf11bf3b3973828f00e268a992 by Miss Islington (bot) 
(Steve Dower) in branch 'master':
bpo-35596: Fix vcruntime140.dll being added to embeddable distro multiple 
times. (GH-11329)
https://github.com/python/cpython/commit/59c2aa25ffc864bf11bf3b3973828f00e268a992


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[issue35596] Fatal Python error: initfsencoding: unable to load the file system codec zipimport.ZipImportError: can't find module 'encodings'

[miss-islington]

Change by miss-islington :


--
keywords: +patch, patch
pull_requests: +10600, 10601

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[issue35596] Fatal Python error: initfsencoding: unable to load the file system codec zipimport.ZipImportError: can't find module 'encodings'

[miss-islington]

Change by miss-islington :


--
keywords: +patch
pull_requests: +10600

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[issue35596] Fatal Python error: initfsencoding: unable to load the file system codec zipimport.ZipImportError: can't find module 'encodings'

[miss-islington]

Change by miss-islington :


--
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pull_requests: +10600, 10601, 10602

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[issue35402] Upgrade macOS and Windows installers to Tcl 8.6.9 and Tk 8.6.9.1

[Ned Deily]

Change by Ned Deily :


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[issue35402] Upgrade macOS and Windows installers to Tcl 8.6.9 and Tk 8.6.9.1

[Ned Deily]

Change by Ned Deily :


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[issue35402] Upgrade macOS and Windows installers to Tcl 8.6.9 and Tk 8.6.9.1

[Ned Deily]

Change by Ned Deily :


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[issue35594] Python script generating Segmentation Fault

[Daugeras]

Daugeras  added the comment:

File Attached. To replicate the bug, you have to create directories for files 
to load (CF config data at the start of the script). The bug happens after 
100-200 files are downloaded.

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[issue35402] Upgrade macOS and Windows installers to Tcl 8.6.9 and Tk 8.6.9.1

[miss-islington]

miss-islington  added the comment:


New changeset a936639b22ca548c00690de6a2964f223f6787cb by Miss Islington (bot) 
(Ned Deily) in branch 'master':
Revert "bpo-35402: Update macOS installer to use Tcl 8.6.9 / Tk 8.6.9.1 
(GH-11101)" (GH-11332)
https://github.com/python/cpython/commit/a936639b22ca548c00690de6a2964f223f6787cb


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[issue8538] Add FlagAction to argparse

[Ken Williams]

Ken Williams  added the comment:

@vstinner - I don't think that conclusion is correct, here is a very 
highly-upvoted answer on SO that indicates a lot of people are still looking 
for this:

https://stackoverflow.com/a/15008806/169947

I myself asked a related (more focused?) question where I was directed here:

https://stackoverflow.com/q/53937481/169947

I'm guessing the right thing to do now would be refocus the merge request in a 
new ticket - is this still the right tracker?

--
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[issue8538] Add FlagAction to argparse

[Yaniv Aknin]

Change by Yaniv Aknin :


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[issue35595] Add sys flag to always show full paths in stack traces (instead of relative paths)

[Steven D'Aprano]

Steven D'Aprano  added the comment:

Python 2.7 is (almost) end of life and well beyond feature-freeze, so this can 
only go into 3.8 or better.

Since the paths logged are relative to the current working directory, perhaps 
you could just have your script log the working directory?

--
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type:  -> enhancement
versions:  -Python 2.7

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[issue35597] Bug in Python's compiler

[Steven D'Aprano]

Steven D'Aprano  added the comment:

For future reference, please don't give screen shots when reporting bugs. Code 
is text, and we don't edit code with Photoshop.

Copy and paste the text, don't take a screen shot. Screen shots make it 
impossible to run the code, and they are difficult for the blind and visually 
impaired who are using a screen-reader.

--
nosy: +steven.daprano

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[issue35189] PEP 475: fnctl functions are not retried if interrupted by a signal (EINTR)

[Michael Felt]

Michael Felt  added the comment:

On 27/12/2018 15:48, Michael Felt wrote:
> Michael Felt  added the comment:
>
> The "improved" output after getting back to "latest" commit:
>
> == CPython 3.8.0a0 (heads/master-dirty:34ae04f74d, Dec 27 2018, 14:05:08) [C]
> == AIX-1-00C291F54C00-powerpc-32bit big-endian
> == cwd: /data/prj/python/python3-3.8/build/test_python_13566116
> == CPU count: 8
> == encodings: locale=ISO8859-1, FS=iso8859-1
> Run tests sequentially
> 0:00:00 [1/1] test_eintr
> test_all (test.test_eintr.EINTRTests) ...
> --- run eintr_tester.py ---
> test_flock (__main__.FNTLEINTRTest) ... ok
> test_lockf (__main__.FNTLEINTRTest) ... ERROR
> test_read (__main__.OSEINTRTest) ... ok
> test_wait (__main__.OSEINTRTest) ... ok
> test_wait3 (__main__.OSEINTRTest) ... ok
> test_wait4 (__main__.OSEINTRTest) ... ok
> test_waitpid (__main__.OSEINTRTest) ... ok
> test_write (__main__.OSEINTRTest) ... ok
> test_devpoll (__main__.SelectEINTRTest) ... skipped 'need select.devpoll'
> test_epoll (__main__.SelectEINTRTest) ... skipped 'need select.epoll'
> test_kqueue (__main__.SelectEINTRTest) ... skipped 'need select.kqueue'
> test_poll (__main__.SelectEINTRTest) ... ok
> test_select (__main__.SelectEINTRTest) ... ok
> test_sigtimedwait (__main__.SignalEINTRTest) ... ok
> test_sigwaitinfo (__main__.SignalEINTRTest) ... ok
> test_accept (__main__.SocketEINTRTest) ... ok
> test_open (__main__.SocketEINTRTest) ... ok
> test_os_open (__main__.SocketEINTRTest) ... ok
> test_recv (__main__.SocketEINTRTest) ... ok
> test_recvmsg (__main__.SocketEINTRTest) ... ok
> test_send (__main__.SocketEINTRTest) ... ok
> test_sendall (__main__.SocketEINTRTest) ... ok
> test_sendmsg (__main__.SocketEINTRTest) ... ok
> test_sleep (__main__.TimeEINTRTest) ... ok
>
> ==
> ERROR: test_lockf (__main__.FNTLEINTRTest)
> --
> Traceback (most recent call last):
>   File "/data/prj/python/git/python3-3.8/Lib/test/eintrdata/eintr_tester.py", 
> line 522, in test_lockf
> self._lock(fcntl.lockf, "lockf")
>   File "/data/prj/python/git/python3-3.8/Lib/test/eintrdata/eintr_tester.py", 
> line 507, in _lock
> lock_func(f, fcntl.LOCK_EX | fcntl.LOCK_NB)
> PermissionError: [Errno 13] Permission denied
>
> --
> Ran 24 tests in 8.822s
>
> FAILED (errors=1, skipped=3)
> --- eintr_tester.py completed: exit code 1 ---
> FAIL
>
> ==
> FAIL: test_all (test.test_eintr.EINTRTests)
> --
> Traceback (most recent call last):
>   File "/data/prj/python/git/python3-3.8/Lib/test/test_eintr.py", line 31, in 
> test_all
> self.fail("eintr_tester.py failed")
> AssertionError: eintr_tester.py failed
>
> --
>
> Ran 1 test in 9.392s
>
> FAILED (failures=1)
> test test_eintr failed
> test_eintr failed
>
> == Tests result: FAILURE ==
>
> 1 test failed:
> test_eintr
>
> Total duration: 9 sec 609 ms
> Tests result: FAILURE
>
> --
>
> ___
> Python tracker 
> 
> ___
>
I have been doing reading and debugging.

Question: does mode "wb" imply also open for reading? Both Freebsd and
AIX man pages specify that a file needs to be open for a shared lock to
even be considered.

Further, AIX talks about "enforced" and "advisory" locks, as well as
"read" and "write" locks. In much older documentation I recall the names
"simple" and "complex" locks. From memory, advisory (aka simple) locks
tend to be exclusive in nature. Shared is only for reading, writing is
always exclusive. I'll have to dig for how "wait" is actually handled -
and work to not confuse "in memory" locks (for multi-threaded locking of
variables) with "file-locking".

Regards,

Michael

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[issue8538] Add FlagAction to argparse

[paul j3]

paul j3  added the comment:

Let me highlight something about

https://stackoverflow.com/a/15008806/169947

The original question was how to implement an Action that accepts 'True' or 
'False' as an argument.  Users often try `type=bool`, which doesn't work 
because of the normal behavior of the Python bool(astr) function.  That's been 
the subject of several other bug/issues.

https://bugs.python.org/issue14392
https://bugs.python.org/issue26994
https://bugs.python.org/issue24754
https://bugs.python.org/issue21208

My answer in that SO question is

https://stackoverflow.com/a/19233287/901925



@mgilson's answer proposes a '--foo', '--no-foo' alternative.  That is in line 
with this bug/issue.

parser.add_argument('--feature', dest='feature', action='store_true')
parser.add_argument('--no-feature', dest='feature', action='store_false')
parser.set_defaults(feature=True)

So the question here is whether mgilson's simple answer is enough, or do we 
need to add Eric's ConfigureAction class?  

On a casual reading the patch proposed here shouldn't have backward 
compatibility issues, since it is an addon class, and doesn't modify existing 
classes.  But it lacks tests and documentation.  

Documentation for argparse is a tough issue.  While advanced users want more 
features and more documented details, most of the SO questions come from 
beginners, who's eyes glaze over when they read the existing documentation.

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[issue35596] Fatal Python error: initfsencoding: unable to load the file system codec zipimport.ZipImportError: can't find module 'encodings'

[Eryk Sun]

Change by Eryk Sun :


--
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stage: patch review -> test needed
type:  -> crash

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[issue21524] Allowing to pass pathlib.Path object in mimetypes.guess_type function

[Cheryl Sabella]

New submission from Cheryl Sabella :

This was implemented in #34926.

--
nosy: +cheryl.sabella
resolution:  -> duplicate
stage:  -> resolved
status: open -> closed
superseder:  -> Allow querying a Path's mime-type
versions: +Python 3.8 -Python 3.4

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[issue8538] Add FlagAction to argparse

[Eric V. Smith]

Eric V. Smith  added the comment:

Yes, this is the correct bug tracker.

And note that this code isn't mine, I just posted it here so it wouldn't be 
lost. It looks like the original message was from 
https://mail.python.org/pipermail/python-dev/2010-April/099704.html

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[issue31440] wrong default module search path in help message

[Cheryl Sabella]

Change by Cheryl Sabella :


--
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status: open -> closed

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[issue8538] Add FlagAction to argparse

[Ken Williams]

Ken Williams  added the comment:

Thanks, Paul and Eric, for your very quick replies.

You're quite correct, the original question in 
https://stackoverflow.com/a/15008806/169947 is indeed hoping for `--foo TRUE` 
and `--foo False` etc. to work.  Personally I don't like that as much as the 
GNU-style `--foo` and `--no-foo` technique, because when you let people type 
`TRUE` or `True` or `T` or `1`, etc., it gets a bit confusing about exactly 
what is accepted as a true value, what's false, is a zero interpreted as 0 or 
"0", whether a failure to parse the value as True or False will be reported as 
an error or not, and so on.  The user typically can't really know these answers 
without reading the actual code, or running it to see what generates an error 
(or triggers whatever behavior they're looking for), which is certainly not 
ideal.

By contrast, with `--foo` and `--no-foo`, the options are strict and clear.  
And supplying an argument will trigger a parse failure.

For @mgilson's proposal, I think the main thing I find unsatisfactory (besides 
the fact that it takes 3 lines to define, and I'll have to come back to that SO 
answer every time to make sure I get them right...) is that the `--help` output 
can't be made clear.  With the following specification:

parser.add_argument('--foo', dest='foo', help="Do foo", action='store_true')
parser.add_argument('--no-foo', dest='foo', help="Don't foo", 
action='store_false')
parser.set_defaults(foo=True)

we get the following --help text (when using ArgumentDefaultsHelpFormatter):

--foo   Do foo (default: True)
--no-fooDon't foo (default: True)

and that last line seems to be a contradiction, or at least very confusing.  
The only alternative I see is to turn off ArgumentDefaultsHelpFormatter, but I 
think the defaults are generally helpful information for the user.

To fix that --help issue seems to require quite a bit more complicated 
registration of arguments, so it's probably not going to happen in most 
people's scripts.

I should be clear: I haven't vetted the `argparse_bool.py` proposal in detail 
either, so I'm not specifically asking for it to be adopted.  Just hoping for a 
nice resolution to the `--foo` `--no-foo` issue that codifies best-practices in 
a way that makes it trivial to get nice behavior in scripts.


As for documentation - I had poked around in the code a bit and seen the 
`register` method, but I thought since it wasn't documented, I'd better not use 
it.  Is it for public consumption?  If so, I'd say it's better documented than 
undocumented, even if it provides more info than most people need.  My guess is 
that enough people are probably using it to make it impossible to eliminate, 
which is a good test for whether something should be documented too.

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[issue35402] Upgrade macOS and Windows installers to Tcl 8.6.9 and Tk 8.6.9.1

[Ned Deily]

Ned Deily  added the comment:

See discussion in Issue35485. Regressions were found on macOS with Tk 8.6.9.1 
and with the more recent Tk 8.6 maintenance branch top of trunk.  So for 
python.org macOS installers, we have reverted to Tcl/Tk 8.6.8.  Windows builds 
will continue to use 8.6.9 unless problems are found.

--
resolution:  -> duplicate
stage: patch review -> resolved
status: open -> closed
superseder:  -> Mac: tkinter windows turn black while resized

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[issue35596] Fatal Python error: initfsencoding: unable to load the file system codec zipimport.ZipImportError: can't find module 'encodings'

[miss-islington]

miss-islington  added the comment:


New changeset bbf695441af9def8a121ff3e245415d9fc0bab9a by Miss Islington (bot) 
in branch '3.7':
bpo-35596: Fix vcruntime140.dll being added to embeddable distro multiple 
times. (GH-11329)
https://github.com/python/cpython/commit/bbf695441af9def8a121ff3e245415d9fc0bab9a


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[issue35587] Python 3.7.2 Embed - zipimport.ZipImportError (Cannot load python37.zip)

[Karthikeyan Singaravelan]

Karthikeyan Singaravelan  added the comment:

This seems to be related to issue35596.

--
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[issue35599] asyncio windows_events.py IocpProactor bug

[Jeff Robbins]

New submission from Jeff Robbins :

The close() method of IocpProactor in windows_events.py has this code in its 
close() method:

while self._cache:
if not self._poll(1):
logger.debug('taking long time to close proactor')

The bug is that self._poll() has *no* return statements in it, and so returns 
None no matter what.  Which makes the "if not" part confusing, at best.  At 
worst, it might reflect a disconnect with the author's intent.

I added a bit more logging and re-ran my test:

while self._cache:
logger.debug('before self._poll(1)')
if not self._poll(1):
logger.debug('taking long time to close proactor')
logger.debug(f'{self._cache}')


logger output:

20:16:30.247 (D)   MainThread  asyncio: before self._poll(1)
20:16:30.248 (D)   MainThread  asyncio: taking long time to 
close proactor
20:16:30.249 (D)   MainThread  asyncio: {}


Obviously 1 millisecond isn't "taking a long time to close proactor".  Also of 
interest, the _cache is now empty.  

I think the intent of the author must have been to check if the call to 
._poll() cleared out any possible pending futures, or waited the full 1 second. 
 Since ._poll() doesn't return any value to differentiate if it waited the full 
wait period or not, the "if" is wrong, and, I think, the intent of the author 
isn't met by this code.

But, separate from speculating on "intent", the debug output of "taking a long 
time to close proactor" seems wrong, and the .close() code seems disassociated 
with the implementation of ._poll() in the same class IocpProactor in 
windows_events.py.

--
components: asyncio
messages: 332632
nosy: asvetlov, je...@livedata.com, yselivanov
priority: normal
severity: normal
status: open
title: asyncio windows_events.py IocpProactor bug
versions: Python 3.7

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[issue35598] IDLE: Modernize config_key module

[Terry J. Reedy]

Change by Terry J. Reedy :


--
pull_requests:  -10599

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[issue35598] IDLE: Modernize config_key module

[Terry J. Reedy]

Change by Terry J. Reedy :


--
pull_requests:  -10598

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[issue28097] IDLE: document all key bindings, add menu items for more.

[Terry J. Reedy]

Change by Terry J. Reedy :


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

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[issue35600] Expose siphash

[Dima Tisnek]

New submission from Dima Tisnek :

Just recently, i found rolling my own simple hash for strings.
(task was to distribute tests across executors, stably across invocations, no 
external input, no security)

In the old days I'd just `hash(some_variable)` but of course now I cannot. 
`hashlib.sha*` seemed too complex and I ended up with something like 
`sum(map(ord, str(some_variable)))`.

How much easier this would be is `siphash` implementation that cpython uses 
internally was available to me!

--
components: Extension Modules
messages: 332633
nosy: Dima.Tisnek
priority: normal
severity: normal
status: open
title: Expose siphash
type: enhancement
versions: Python 3.8

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[issue35598] IDLE: Modernize config_key module

[Terry J. Reedy]

Terry J. Reedy  added the comment:

I am going to merge on the presumption that you will follow through at least 
with more tests.  Currently missing other than mac-code, according to coverage 
output: switch from 'advanced to basic and calls to final_key_selected, 
build_key_string, get_modifiers, and translate_key.  The last should become a 
standalone function.

I believe I have encountered a bug.  Change a key binding.  Cancel. Re-open 
config dialog.  Try to change back.  It says original binding is in use -- 
which it is if one closes IDLE and reopens, or opens a different instance.  It 
seems that cancel is not properly undoing the temporary change.

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[issue35598] IDLE: Modernize config_key module

[Terry J. Reedy]

Change by Terry J. Reedy :


--
versions: +Python 3.7

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[issue35598] IDLE: Modernize config_key module

[Terry J. Reedy]

Terry J. Reedy  added the comment:

If you submit further PRs for this issue, the blurb will need to be changed as 
blurbs are for issues, not PRs.

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[issue28097] IDLE: document all key bindings, add menu items for more.

[Terry J. Reedy]

Change by Terry J. Reedy :


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[issue28097] IDLE: document all key bindings, add menu items for more.

[Terry J. Reedy]

Change by Terry J. Reedy :


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[issue35600] Expose siphash

[Steven D'Aprano]

Steven D'Aprano  added the comment:

> In the old days I'd just `hash(some_variable)` but of course now I cannot.

I'm sorry, I don't understand... why can't you?

py> text = "NOBODY expects the Spanish Inquisition!"
py> hash(text)
1245575277


There's also this:

py> hashlib.md5(text.encode('utf-8')).digest()
b'@\xfb[&\t]\x9c\xc0\xc5\xfcvH\xe8:\x1b]'


although it might be a bit expensive if you don't care about security and too 
weak if you do. Can you explain why hash() isn't suitable?

For what's its worth, I wouldn't use sum() to generate a hash since it may be 
unbounded and may not be "mixed up" enough. If you can't hash a string, perhaps 
you can hash a tuple of ints?

py> hash(tuple(map(ord, text)))
-816773268
py> hash(tuple(map(ord, text+"\0")))
667761418

--
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[issue35568] Expose the C raise() function in the signal module, for use on Windows

[Vladimir Matveev]

Change by Vladimir Matveev :


--
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pull_requests: +10606
stage:  -> patch review

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[issue35568] Expose the C raise() function in the signal module, for use on Windows

[Vladimir Matveev]

Change by Vladimir Matveev :


--
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pull_requests: +10606, 10607
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[issue35568] Expose the C raise() function in the signal module, for use on Windows

[Vladimir Matveev]

Change by Vladimir Matveev :


--
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pull_requests: +10606, 10607, 10608
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[issue35601] Race condition in test_signal_handling_args x86-64 High Sierra 3.75

[Pablo Galindo Salgado]

New submission from Pablo Galindo Salgado :

There is a race condition in FAIL: test_signal_handling_args 
(test.test_asyncio.test_events.KqueueEventLoopTests) in macOS:

https://buildbot.python.org/all/#/builders/147/builds/546/steps/4/logs/stdio

==
FAIL: test_signal_handling_args 
(test.test_asyncio.test_events.KqueueEventLoopTests)
--
Traceback (most recent call last):
  File 
"/Users/buildbot/buildarea/3.7.billenstein-sierra/build/Lib/test/test_asyncio/test_events.py",
 line 595, in test_signal_handling_args
self.assertEqual(caught, 1)
AssertionError: 0 != 1

It seems that SIGALRM is never received in the 0.5 seconds of timeout:

def test_signal_handling_args(self):
some_args = (42,)
caught = 0

def my_handler(*args):
nonlocal caught
caught += 1
self.assertEqual(args, some_args)

self.loop.add_signal_handler(signal.SIGALRM, my_handler, *some_args)

signal.setitimer(signal.ITIMER_REAL, 0.1, 0)  # Send SIGALRM once.
self.loop.call_later(0.5, self.loop.stop)
self.loop.run_forever()
self.assertEqual(caught, 1)

Maybe we should set up a much bigger timeout and make the handle stop the event 
loop.

--
components: Tests, asyncio, macOS
messages: 332637
nosy: asvetlov, ned.deily, pablogsal, ronaldoussoren, yselivanov
priority: normal
severity: normal
status: open
title: Race condition in test_signal_handling_args x86-64 High Sierra 3.75
type: behavior
versions: Python 3.6, Python 3.7, Python 3.8

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[issue35598] IDLE: Modernize config_key module

[miss-islington]

Change by miss-islington :


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stage:  -> patch review

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[issue35598] IDLE: Modernize config_key module

[miss-islington]

Change by miss-islington :


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[issue35598] IDLE: Modernize config_key module

[Terry J. Reedy]

Terry J. Reedy  added the comment:


New changeset 55698cc39549523cafc13cc8dd47960d8f73a59f by Terry Jan Reedy 
(Cheryl Sabella) in branch 'master':
bpo-35598: IDLE: Update config_key.py with PEP8 names (GH-11330)
https://github.com/python/cpython/commit/55698cc39549523cafc13cc8dd47960d8f73a59f


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[issue35598] IDLE: Modernize config_key module

[miss-islington]

Change by miss-islington :


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[issue35601] Race condition in test_signal_handling_args x86-64 High Sierra 3.75

[Pablo Galindo Salgado]

Change by Pablo Galindo Salgado :


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pull_requests: +10612
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[issue35601] Race condition in test_signal_handling_args x86-64 High Sierra 3.75

[Pablo Galindo Salgado]

Change by Pablo Galindo Salgado :


--
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pull_requests: +10612, 10613
stage:  -> patch review

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[issue35601] Race condition in test_signal_handling_args x86-64 High Sierra 3.75

[Pablo Galindo Salgado]

Change by Pablo Galindo Salgado :


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keywords: +patch, patch, patch
pull_requests: +10612, 10613, 10614
stage:  -> patch review

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[issue35600] Expose siphash

[Dima Tisnek]

Dima Tisnek  added the comment:

Steven, my requirement calls for same hash on multiple machines. Python's hash 
(for strings) is keyed with a random value.

You are correct that `hash(tuple(map(ord, str(something` is stable.

In the worst case, I could override `PYTHONHASHSEED` globally.

I suppose this relegates my suggestion to "why not" or "because we can" 
category.

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[issue35598] IDLE: Modernize config_key module

[Terry J. Reedy]

Change by Terry J. Reedy :


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pull_requests:  -10611

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[issue35598] IDLE: Modernize config_key module

[miss-islington]

miss-islington  added the comment:


New changeset 4c7f34f73d2d16303798fc4a7043e641cee58e51 by Miss Islington (bot) 
in branch '3.7':
bpo-35598: IDLE: Update config_key.py with PEP8 names (GH-11330)
https://github.com/python/cpython/commit/4c7f34f73d2d16303798fc4a7043e641cee58e51


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nosy: +miss-islington

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[issue35598] IDLE: Modernize config_key module

[Terry J. Reedy]

Change by Terry J. Reedy :


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pull_requests:  -10610

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