Mailman 3 December 2021 - Python-Dev

Summary of Python tracker Issues
by Python tracker Dec. 31, 2021

Dec. 31, 2021

ACTIVITY SUMMARY (2021-12-24 - 2021-12-31) Python tracker at https://bugs.python.org/ To view or respond to any of the issues listed below, click on the issue. Do NOT respond to this message. Issues counts and deltas: open 7195 ( -1) closed 50747 (+41) total 57942 (+40) Open issues with patches: 2871 Issues opened (32) ================== #46118: Migrate importlib.resources into a package https://bugs.python.org/issue46118 reopened by jaraco #46175: Zero argument super() does not function properly inside genera https://bugs.python.org/issue46175 opened by tritium #46177: can't install launcher for all users https://bugs.python.org/issue46177 opened by Amine #46178: Remove `.travis.yml`? https://bugs.python.org/issue46178 opened by sobolevn #46180: Button clicked failed when mouse hover tooltip and tooltip des https://bugs.python.org/issue46180 opened by Jason990420 #46181: Destroying an expaned Combobox prevents Entry focus until Alt+ https://bugs.python.org/issue46181 opened by j.lahav #46182: `super` and descriptor clarification https://bugs.python.org/issue46182 opened by Arthur-Milchior #46184: Remove `netlify.toml`? https://bugs.python.org/issue46184 opened by sobolevn #46186: replace `io.IncrementalNewlineDecoder` with non incremental ne https://bugs.python.org/issue46186 opened by guoci #46187: Optionally support rounding for math.isqrt() https://bugs.python.org/issue46187 opened by rhettinger #46192: Optimize builtin functions min() and max() https://bugs.python.org/issue46192 opened by colorfulappl #46194: Wrong base class for transport returned by loop.create_datagra https://bugs.python.org/issue46194 opened by asvetlov #46195: Annotated and Optional get_type_hints buggy interaction https://bugs.python.org/issue46195 opened by med2277 #46196: documentation for cmd library should include columnize() funct https://bugs.python.org/issue46196 opened by sharewell #46197: ensurepip bootstrap breaks out of isolated environment https://bugs.python.org/issue46197 opened by kcdodd #46198: Duplicated test name `test_get_unstructured_invalid_ew` in `te https://bugs.python.org/issue46198 opened by sobolevn #46199: Calculation influenced by print https://bugs.python.org/issue46199 opened by wby78826 #46200: Discourage logging f-strings due to security considerations https://bugs.python.org/issue46200 opened by ariebovenberg #46201: PEP 495 misnames PyDateTime_DATE_GET_FOLD https://bugs.python.org/issue46201 opened by drougge #46202: remove opcode POP_EXCEPT_AND_RERAISE https://bugs.python.org/issue46202 opened by iritkatriel #46203: Add timeout for Windows build steps https://bugs.python.org/issue46203 opened by mark.dickinson #46204: Graphlib documentation (general cleanup) https://bugs.python.org/issue46204 opened by dam1784 #46205: Race condition in runtest_mp leads to hangs (never exits) https://bugs.python.org/issue46205 opened by colesbury #46206: Crash when editing emoji containing strings https://bugs.python.org/issue46206 opened by 10maurycy10 #46207: Log emit performance degradation in RotatingFileHandlers due t https://bugs.python.org/issue46207 opened by dfritz #46208: os.path.normpath change between 3.11.0a2 and 3.11.0a3+ https://bugs.python.org/issue46208 opened by hugovk #46209: add documentation for decoding newlines in the `io` module https://bugs.python.org/issue46209 opened by guoci #46210: print deadlocks https://bugs.python.org/issue46210 opened by notarealdeveloper #46211: Recursively calling makepasv() finally leads to core dumped. https://bugs.python.org/issue46211 opened by xxm #46212: Avoid temporary `varargs` tuple creation in argument passing https://bugs.python.org/issue46212 opened by colorfulappl #46213: webbrowser.open doesn't work in Termux https://bugs.python.org/issue46213 opened by DonaldDuck1313 #46214: Remove unused opcode ROT_FOUR https://bugs.python.org/issue46214 opened by iritkatriel Most recent 15 issues with no replies (15) ========================================== #46214: Remove unused opcode ROT_FOUR https://bugs.python.org/issue46214 #46213: webbrowser.open doesn't work in Termux https://bugs.python.org/issue46213 #46211: Recursively calling makepasv() finally leads to core dumped. https://bugs.python.org/issue46211 #46210: print deadlocks https://bugs.python.org/issue46210 #46209: add documentation for decoding newlines in the `io` module https://bugs.python.org/issue46209 #46207: Log emit performance degradation in RotatingFileHandlers due t https://bugs.python.org/issue46207 #46205: Race condition in runtest_mp leads to hangs (never exits) https://bugs.python.org/issue46205 #46204: Graphlib documentation (general cleanup) https://bugs.python.org/issue46204 #46203: Add timeout for Windows build steps https://bugs.python.org/issue46203 #46202: remove opcode POP_EXCEPT_AND_RERAISE https://bugs.python.org/issue46202 #46201: PEP 495 misnames PyDateTime_DATE_GET_FOLD https://bugs.python.org/issue46201 #46198: Duplicated test name `test_get_unstructured_invalid_ew` in `te https://bugs.python.org/issue46198 #46197: ensurepip bootstrap breaks out of isolated environment https://bugs.python.org/issue46197 #46196: documentation for cmd library should include columnize() funct https://bugs.python.org/issue46196 #46181: Destroying an expaned Combobox prevents Entry focus until Alt+ https://bugs.python.org/issue46181 Most recent 15 issues waiting for review (15) ============================================= #46214: Remove unused opcode ROT_FOUR https://bugs.python.org/issue46214 #46212: Avoid temporary `varargs` tuple creation in argument passing https://bugs.python.org/issue46212 #46210: print deadlocks https://bugs.python.org/issue46210 #46209: add documentation for decoding newlines in the `io` module https://bugs.python.org/issue46209 #46204: Graphlib documentation (general cleanup) https://bugs.python.org/issue46204 #46203: Add timeout for Windows build steps https://bugs.python.org/issue46203 #46202: remove opcode POP_EXCEPT_AND_RERAISE https://bugs.python.org/issue46202 #46198: Duplicated test name `test_get_unstructured_invalid_ew` in `te https://bugs.python.org/issue46198 #46197: ensurepip bootstrap breaks out of isolated environment https://bugs.python.org/issue46197 #46196: documentation for cmd library should include columnize() funct https://bugs.python.org/issue46196 #46195: Annotated and Optional get_type_hints buggy interaction https://bugs.python.org/issue46195 #46194: Wrong base class for transport returned by loop.create_datagra https://bugs.python.org/issue46194 #46192: Optimize builtin functions min() and max() https://bugs.python.org/issue46192 #46186: replace `io.IncrementalNewlineDecoder` with non incremental ne https://bugs.python.org/issue46186 #46184: Remove `netlify.toml`? https://bugs.python.org/issue46184 Top 10 most discussed issues (10) ================================= #37295: Possible optimizations for math.comb() https://bugs.python.org/issue37295 22 msgs #46187: Optionally support rounding for math.isqrt() https://bugs.python.org/issue46187 17 msgs #46170: Improving the error message when subclassing NewType https://bugs.python.org/issue46170 7 msgs #46175: Zero argument super() does not function properly inside genera https://bugs.python.org/issue46175 6 msgs #46118: Migrate importlib.resources into a package https://bugs.python.org/issue46118 5 msgs #46182: `super` and descriptor clarification https://bugs.python.org/issue46182 5 msgs #46195: Annotated and Optional get_type_hints buggy interaction https://bugs.python.org/issue46195 5 msgs #46124: Deprecation warning in zoneinfo module https://bugs.python.org/issue46124 4 msgs #46171: venv module produces spurious warning that location has moved https://bugs.python.org/issue46171 4 msgs #2756: urllib.request.add_header fails with existing unredirected_hea https://bugs.python.org/issue2756 3 msgs Issues closed (36) ================== #9334: argparse does not accept options taking arguments beginning wi https://bugs.python.org/issue9334 closed by rhettinger #13672: Add co_qualname attribute in code objects https://bugs.python.org/issue13672 closed by iritkatriel #18677: Enhanced context managers with ContextManagerExit and None https://bugs.python.org/issue18677 closed by AlexWaygood #31914: Document Pool.(star)map return type https://bugs.python.org/issue31914 closed by AlexWaygood #34498: Python 3.7+ break on singledispatch_function.register(pseudo_t https://bugs.python.org/issue34498 closed by serhiy.storchaka #34963: String representation for types created with typing.NewType(�� https://bugs.python.org/issue34963 closed by serhiy.storchaka #38397: __init_subclass__ causes TypeError when used with more standar https://bugs.python.org/issue38397 closed by AlexWaygood #38522: Py_USING_MEMORY_DEBUGGER is referenced in docs but not present https://bugs.python.org/issue38522 closed by benjamin.peterson #41569: json.JSONEncoder.default should be called for dict keys as wel https://bugs.python.org/issue41569 closed by andrei.avk #41593: pathlib PermissionError problem https://bugs.python.org/issue41593 closed by andrei.avk #41850: inspect.py: access block stack https://bugs.python.org/issue41850 closed by Dennis Sweeney #42079: Why does tarfile.next swallow InvalidHeaderError https://bugs.python.org/issue42079 closed by andrei.avk #42918: Nested multi-line expression will lead to "compile()" fails https://bugs.python.org/issue42918 closed by lukasz.langa #43639: Do not raise AttributeError on instance attribute update/delet https://bugs.python.org/issue43639 closed by rhettinger #45189: Drop the "list_frozen" command from _test_embed. https://bugs.python.org/issue45189 closed by corona10 #45321: Module xml.parsers.expat.errors misses error code constants of https://bugs.python.org/issue45321 closed by scoder #45496: Tkinter: test_winfo_rgb failure https://bugs.python.org/issue45496 closed by serhiy.storchaka #45508: Specialize INPLACE_ADD https://bugs.python.org/issue45508 closed by Dennis Sweeney #45853: Misspelled _IGNORED_ERROS in Lib/pathlib.py https://bugs.python.org/issue45853 closed by serhiy.storchaka #46032: functools' singledispatch does not support GenericAlias https://bugs.python.org/issue46032 closed by serhiy.storchaka #46085: OrderedDict iterator allocates di_result unnecessarily https://bugs.python.org/issue46085 closed by corona10 #46090: C extensions can't swap out live frames anymore https://bugs.python.org/issue46090 closed by brandtbucher #46109: Separate resources docs from other importlib docs https://bugs.python.org/issue46109 closed by jaraco #46120: Add note to `typing.Union` that it is recommended to use `|` i https://bugs.python.org/issue46120 closed by AlexWaygood #46150: test_pathlib assumes "fakeuser" does not exist as user https://bugs.python.org/issue46150 closed by gregory.p.smith #46172: [doc] Outdated description of `license` object https://bugs.python.org/issue46172 closed by CCXXXI #46174: Feature Request for Python Interfaces https://bugs.python.org/issue46174 closed by ronaldoussoren #46176: mmap module add MAP_STACK constant mostly for OpenBSD https://bugs.python.org/issue46176 closed by corona10 #46179: Delete selected item generate "<<TreeviewSelect>>" event or no https://bugs.python.org/issue46179 closed by Jason990420 #46183: float function errors on negative number string with comma sep https://bugs.python.org/issue46183 closed by steven.daprano #46185: Python 3.10.1 installer refers to /Applications/Python 3.9 Ins https://bugs.python.org/issue46185 closed by erlendaasland #46188: dictionary creation error https://bugs.python.org/issue46188 closed by steven.daprano #46189: Text containing "wide" character not correctly refreshed https://bugs.python.org/issue46189 closed by serhiy.storchaka #46190: Omit k in random.sample() https://bugs.python.org/issue46190 closed by rhettinger #46191: Conflict between using annotations in singledispatch() and MyP https://bugs.python.org/issue46191 closed by serhiy.storchaka #46193: Using a dictionary for open files. https://bugs.python.org/issue46193 closed by Keepun

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Requesting a code review for #29560 (bpo-26175: Implement io.IOBase interface for SpooledTemporaryFile)
by Carey Metcalfe Dec. 31, 2021

Dec. 31, 2021

Hi all, I submitted my first PR against Python a month or so ago and was wondering if someone could take a quick look at it and let me know if anything needs to be fixed before it can be merged. It's a pretty simple change (mostly just boilerplate delegation) that allows SpooledTemporaryFile objects to be used like all other io.IOBase objects. This brings it more inline with the documentation, as well as fixes a variety of use cases that require the `seekable`, `readable`, etc. methods to be available on it. Python bug: https://bugs.python.org/issue26175 Current PR: https://github.com/python/cpython/pull/29560 Thanks! Carey

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Re: issues-test-2 spam?
by Matti Picus Dec. 27, 2021

Dec. 27, 2021

3 2

issues-test-2 spam?
by Steven D'Aprano Dec. 26, 2021

Dec. 26, 2021

Apologies if this is the wrong place to raise this (where is the right place?) but over the last four days, I've received ten subscription notices for python/issues-test-2 on Github. Is anyone else also getting multiple subscription notices? -- Steve

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Summary of Python tracker Issues
by Python tracker Dec. 24, 2021

Dec. 24, 2021

ACTIVITY SUMMARY (2021-12-17 - 2021-12-24) Python tracker at https://bugs.python.org/ To view or respond to any of the issues listed below, click on the issue. Do NOT respond to this message. Issues counts and deltas: open 7196 (+16) closed 50706 (+41) total 57902 (+57) Open issues with patches: 2866 Issues opened (37) ================== #44598: test_constructor (test.test_ssl.ContextTests) ... Fatal Python https://bugs.python.org/issue44598 reopened by sxt1001 #46118: Migrate importlib.resources into a package https://bugs.python.org/issue46118 opened by jaraco #46119: Update bundled pip to 21.3.1 and setuptools to 59.7.0 https://bugs.python.org/issue46119 opened by kumaraditya303 #46120: Add note to `typing.Union` that it is recommended to use `|` i https://bugs.python.org/issue46120 opened by sobolevn #46121: Add a note to QueueListener documentation saying that SimpleQu https://bugs.python.org/issue46121 opened by iamdbychkov #46124: Deprecation warning in zoneinfo module https://bugs.python.org/issue46124 opened by xtreak #46125: Test the preferred API instead of relying on legacy for covera https://bugs.python.org/issue46125 opened by jaraco #46126: Unittest output drives developers to avoid docstrings https://bugs.python.org/issue46126 opened by jaraco #46128: Strip IsolatedAsyncioTestCase frames from reported stacktraces https://bugs.python.org/issue46128 opened by asvetlov #46133: Unclear whether one can (or how to) provide source to exec-gen https://bugs.python.org/issue46133 opened by posita #46134: Confusing error message for AttributeError with dataclasses https://bugs.python.org/issue46134 opened by landonjpginn #46141: Fix ipaddress.ip_network TypeErrors https://bugs.python.org/issue46141 opened by bar.harel #46142: python --help output is too long https://bugs.python.org/issue46142 opened by eric.araujo #46143: [docs] IO > Text Encoding info outdated https://bugs.python.org/issue46143 opened by gilbertson.david #46146: Python IDLE fails to start (tk font issue?) https://bugs.python.org/issue46146 opened by mcepl #46147: Support AddressSanitizer in Windows build https://bugs.python.org/issue46147 opened by anthonypjshaw #46148: Optimize pathlib https://bugs.python.org/issue46148 opened by kumaraditya303 #46149: FIPS usedforsecurity flag is no longer functional with OpenSSL https://bugs.python.org/issue46149 opened by florinspatar #46150: test_pathlib assumes "fakeuser" does not exist as user https://bugs.python.org/issue46150 opened by twouters #46151: SimpleCookie.js_output is vulnerable to HTML injection https://bugs.python.org/issue46151 opened by trungpaaa #46154: MIMEMultipart enforces line endings also for binary subparts https://bugs.python.org/issue46154 opened by sophonet #46156: 3.9.9: python built-in SSL module unable to connect to an IIS https://bugs.python.org/issue46156 opened by lkraav #46157: Typo in JSON documentation https://bugs.python.org/issue46157 opened by jordan-bonecutter #46158: Hardcoded sysroot path, to MacOSX11.sdk, in python sysconfig https://bugs.python.org/issue46158 opened by akumar9 #46159: Segfault when using trace functions in 3.11a3 https://bugs.python.org/issue46159 opened by reaperhulk #46161: `class A(1, 2, 3, **d): pass` gives bad bytecode https://bugs.python.org/issue46161 opened by zq1997 #46162: Make `builtins.property` generic https://bugs.python.org/issue46162 opened by sobolevn #46163: multiprocessing logger deadlocks if used with logging.handlers https://bugs.python.org/issue46163 opened by iamdbychkov #46166: Get "self" args or non-null co_varnames from frame object with https://bugs.python.org/issue46166 opened by Skylion007 #46167: Parse assert (x == y, "Descriptive text") as statement params https://bugs.python.org/issue46167 opened by gregory.p.smith #46168: Incorrect format specified for the "style" key in the configur https://bugs.python.org/issue46168 opened by bokunogf #46169: Same-moment datetimes with different ZoneInfo timezones are no https://bugs.python.org/issue46169 opened by huonw #46170: Improving the error message when subclassing NewType https://bugs.python.org/issue46170 opened by Gobot1234 #46171: venv module produces spurious warning that location has moved https://bugs.python.org/issue46171 opened by layday #46172: [doc] Outdated description of `license` object https://bugs.python.org/issue46172 opened by CCXXXI #46173: float(x) with large x not raise OverflowError https://bugs.python.org/issue46173 opened by cykerway #46174: Feature Request for Python Interfaces https://bugs.python.org/issue46174 opened by Orie Most recent 15 issues with no replies (15) ========================================== #46174: Feature Request for Python Interfaces https://bugs.python.org/issue46174 #46172: [doc] Outdated description of `license` object https://bugs.python.org/issue46172 #46170: Improving the error message when subclassing NewType https://bugs.python.org/issue46170 #46166: Get "self" args or non-null co_varnames from frame object with https://bugs.python.org/issue46166 #46163: multiprocessing logger deadlocks if used with logging.handlers https://bugs.python.org/issue46163 #46159: Segfault when using trace functions in 3.11a3 https://bugs.python.org/issue46159 #46154: MIMEMultipart enforces line endings also for binary subparts https://bugs.python.org/issue46154 #46151: SimpleCookie.js_output is vulnerable to HTML injection https://bugs.python.org/issue46151 #46141: Fix ipaddress.ip_network TypeErrors https://bugs.python.org/issue46141 #46133: Unclear whether one can (or how to) provide source to exec-gen https://bugs.python.org/issue46133 #46121: Add a note to QueueListener documentation saying that SimpleQu https://bugs.python.org/issue46121 #46120: Add note to `typing.Union` that it is recommended to use `|` i https://bugs.python.org/issue46120 #46119: Update bundled pip to 21.3.1 and setuptools to 59.7.0 https://bugs.python.org/issue46119 #46115: Interrupting subprocess.popen in recursive calls by KeyboardIn https://bugs.python.org/issue46115 #46098: Missing test for multi-line errors in traceback https://bugs.python.org/issue46098 Most recent 15 issues waiting for review (15) ============================================= #46167: Parse assert (x == y, "Descriptive text") as statement params https://bugs.python.org/issue46167 #46162: Make `builtins.property` generic https://bugs.python.org/issue46162 #46157: Typo in JSON documentation https://bugs.python.org/issue46157 #46150: test_pathlib assumes "fakeuser" does not exist as user https://bugs.python.org/issue46150 #46148: Optimize pathlib https://bugs.python.org/issue46148 #46128: Strip IsolatedAsyncioTestCase frames from reported stacktraces https://bugs.python.org/issue46128 #46126: Unittest output drives developers to avoid docstrings https://bugs.python.org/issue46126 #46125: Test the preferred API instead of relying on legacy for covera https://bugs.python.org/issue46125 #46124: Deprecation warning in zoneinfo module https://bugs.python.org/issue46124 #46120: Add note to `typing.Union` that it is recommended to use `|` i https://bugs.python.org/issue46120 #46119: Update bundled pip to 21.3.1 and setuptools to 59.7.0 https://bugs.python.org/issue46119 #46118: Migrate importlib.resources into a package https://bugs.python.org/issue46118 #46114: OpenSSL 3.0 uses different version scheme https://bugs.python.org/issue46114 #46109: Separate resources docs from other importlib docs https://bugs.python.org/issue46109 #46103: inspect.getmembers will call the instance __bases__ attribute, https://bugs.python.org/issue46103 Top 10 most discussed issues (10) ================================= #37295: Possible optimizations for math.comb() https://bugs.python.org/issue37295 18 msgs #46167: Parse assert (x == y, "Descriptive text") as statement params https://bugs.python.org/issue46167 11 msgs #46157: Typo in JSON documentation https://bugs.python.org/issue46157 9 msgs #46146: Python IDLE fails to start (tk font issue?) https://bugs.python.org/issue46146 8 msgs #46126: Unittest output drives developers to avoid docstrings https://bugs.python.org/issue46126 7 msgs #46148: Optimize pathlib https://bugs.python.org/issue46148 7 msgs #46109: Separate resources docs from other importlib docs https://bugs.python.org/issue46109 6 msgs #46090: C extensions can't swap out live frames anymore https://bugs.python.org/issue46090 5 msgs #46117: tk could not refresh auto in mac os https://bugs.python.org/issue46117 5 msgs #46173: float(x) with large x not raise OverflowError https://bugs.python.org/issue46173 5 msgs Issues closed (37) ================== #29328: struct module should support variable-length strings https://bugs.python.org/issue29328 closed by AlexWaygood #34624: -W option and PYTHONWARNINGS env variable does not accept modu https://bugs.python.org/issue34624 closed by coldfix #34643: How to build Release Version of Python in Windows? https://bugs.python.org/issue34643 closed by AlexWaygood #37578: Change Glob: Allow Recursion for Hidden Files https://bugs.python.org/issue37578 closed by AlexWaygood #45978: deepfreeze opaquely fails on Windows when building from Visual https://bugs.python.org/issue45978 closed by Dennis Sweeney #45996: Worse error from asynccontextmanager in Python 3.10 https://bugs.python.org/issue45996 closed by asvetlov #46044: Update distutils documentation to say PyPI only accepts tar.g https://bugs.python.org/issue46044 closed by brett.cannon #46065: re.findall takes forever and never ends https://bugs.python.org/issue46065 closed by gdr(a)garethrees.org #46076: Document using __slots__ to provide per-attribute docstrings https://bugs.python.org/issue46076 closed by rhettinger #46088: Build hangs under Visual Studio in deepfreeze stage https://bugs.python.org/issue46088 closed by steve.dower #46099: Solaris: Fix pthread_getcpuclockid test https://bugs.python.org/issue46099 closed by AlexWaygood #46104: Reduce use of old-style syntax in typing docs https://bugs.python.org/issue46104 closed by AlexWaygood #46106: OpenSSL 1.1.1m is now available https://bugs.python.org/issue46106 closed by ned.deily #46107: ExceptionGroup.split()/subgroup() don't copy __note__ to parts https://bugs.python.org/issue46107 closed by iritkatriel #46110: compile("-"*3000000 + "4", '', mode) causes hard crash https://bugs.python.org/issue46110 closed by pablogsal #46113: Typos and minor fixes in built in types documentation https://bugs.python.org/issue46113 closed by kj #46122: Update/fix types.UnionType to types.Union in Built-in Types do https://bugs.python.org/issue46122 closed by kj #46123: _freeze_module on Windows can be built faster with no optimiza https://bugs.python.org/issue46123 closed by steve.dower #46127: Missing HTML span element in exceptions.html https://bugs.python.org/issue46127 closed by vivekvashist #46129: Rewrite asyncio.locks tests with IsolatedAsyncioTestCase https://bugs.python.org/issue46129 closed by asvetlov #46130: Untranslatable link text in whatsnew/3.10 https://bugs.python.org/issue46130 closed by kj #46131: Add PyType_FastSubclass for float https://bugs.python.org/issue46131 closed by rhettinger #46132: Consider adding __slots__ to enums? https://bugs.python.org/issue46132 closed by rhettinger #46135: Changing a label's text is not working properly on transparent https://bugs.python.org/issue46135 closed by ned.deily #46136: "dh low key " issue when try to connect mysql https://bugs.python.org/issue46136 closed by christian.heimes #46137: Update/change built-in keyword type used in RE example https://bugs.python.org/issue46137 closed by vivekvashist #46138: Strange behavior with lists https://bugs.python.org/issue46138 closed by eric.smith #46139: Boolean Logic Check - Built-in Types Documentation page https://bugs.python.org/issue46139 closed by abriabrisham #46140: Some API methods could take const Py_buffer* instead of Py_buf https://bugs.python.org/issue46140 closed by serhiy.storchaka #46144: math.log() returns improper output https://bugs.python.org/issue46144 closed by joshinsel #46145: List reference not working properly https://bugs.python.org/issue46145 closed by antarab #46152: rename wave.py class nane https://bugs.python.org/issue46152 closed by christian.heimes #46153: function fails in exec when locals is given https://bugs.python.org/issue46153 closed by steven.daprano #46155: Implement ExceptionGroup __new__ https://bugs.python.org/issue46155 closed by iritkatriel #46160: IPy->IPSet AttributeError: module 'collections' has no attribu https://bugs.python.org/issue46160 closed by serhiy.storchaka #46164: New `both()` operator for matching multiple variables to one https://bugs.python.org/issue46164 closed by steven.daprano #46165: pythin is core dumping with SIGILL in pytest of the jupyter-se https://bugs.python.org/issue46165 closed by christian.heimes

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Re: RFC on Callable Syntax PEP
by Batuhan Taskaya Dec. 21, 2021

Dec. 21, 2021

First of all, thank you for authoring a really well-written PEP. tl;dr: I find it very troubling that we are going on a path where need to increase the language complexity (syntax) only in the cause 'easier' typing. So I am opposed to this change. Most of the native typing use cases until now (PEP 585 / PEP 604) was using the existing syntax, with slight adjustments on runtime. And personally, I really liked them (being able to write `list[int | str]` is nice), but not as much as I like the simplicity of the language. I think the new syntax proposal for only a typing use case is really destructive when we already have a very formal way of creating callable types. I personally don't think it is verbose (as claimed by the PEP), since the only thing that we have an extra is the `Callable` name. Aside from these concerns, a few comments on the actual proposal: - The syntax itself would probably confuse people, considering in other languages (like javascript) the arrow functions are a thing that loosely translates to our lambdas. People might try to write code like `(x, y) -> x + y`, with the expectation that it would work (since it is a valid syntax now), but it would immediately throw an error (if x/y is not defined) and create confusion. - Callables that return callables look very awkward with a double arrow. `) -> (int, str) -> R:` (compared to `) -> Callable[[int, str], R]:`. This was one of the examples that really made me look twice to understand. - `async` keyword used to be coupled with `def`/`for`/`with`, but without any of these, it doesn't feel good to have it as some sort of prefix to these expressions. I think it would be nice if the PEP can address how much of the code out there uses `Callable[..., Awaitable[...]]` syntax, since from what I understand by the current proposal `async (int, str) -> bool` is the same with `(int, str) -> Awaitable[bool]`, which is, in theory, a new syntax that we might be adding for a very restricted use case. - The parameter part (`(x, y) -> `) seem to be even diverging from an actual expression (by allowing standalone [double-]starred operations, and disallowing `(int, ...) ->`), which I think would complicate the actual parsing process (even though we have an advanced parser in CPython, that does not mean community maintained projects such as jedi, parso, black will have one). - Out of 4 concerns that are listed on the PEP about the current callable syntax; only 1 is about the actual runtime behaviour, which even if I did not agree initially, we have other solutions. Like an open issue on the tracker about making `callable()` generic https://bugs.python.org/issue42102. - The other 3 is pretty much the same, claiming the syntax is dense. Which I partly agree on. We probably could find other solutions (using tuples to represent the parameter group, etc.), but I do not see those points as very big deals (at least not as big as adding a very complicated piece of new syntax). I would assume some of these were previously discussed during the typing-sig/python-dev threads, but as someone who recently learned about this proposal, I feel like this is really overworked for a problem that is (subjectively, again) small.

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facing the issue for remove the value from list (when value is repeated)
by laxmikant5656＠gmail.com Dec. 21, 2021

Dec. 21, 2021

Good evening everyone I used python 3.7.3 IDLE i found the bug to solve the problem when list contain repetitive value is come i.e. if i want to delete 2 from list using remove function it's 2 value put containouls 2 and such value is remove using any type of loop all element are not delete from list. Any higher version cover such type of problem? or any other method for delete such value list1=[1,2,3,2,4,2,7,2,2,2,2,5,5,5,2,4,5,6,7,8] a=0 while a < len(list1): if list1[a]==2: list1.remove(2) a=a+1 print(list1)

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The python command help is too long
by Serhiy Storchaka Dec. 21, 2021

Dec. 21, 2021

The output of "python -h" is 104 lines long now. It was only 51 lines in 3.6. 35% of it is about the -X option, and 30% about environment variables. Also some lines in the -X option description are too long (102 columns). Both topics are "advanced" and mostly interested for debugging. I suggest to move them out of the main help output. The are two options: 1. Move it to pydoc topics. The advantage is that it is a standard way, there are already 88 topics. The disadvantage is that this information will be not available in "minimal" installations of Python which do not include docs. 2. Add command-line options like -hX and -henv. The information will always be available with the interpreter, but the interface is special.

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About the new CFrame structure
by Gabriele Dec. 20, 2021

Dec. 20, 2021

Hi there I hope you would indulge me in asking for some details about the new CFrame structure, even in the form of existing literature (e.g. PEP) where the idea behind it is explained. Also, I'd like to a quick question, if I may. There now appear to be two ways of unwinding the frame stack: either iterate over CFrame.previous, or the more traditional PyFrameObject.f_back. I suspect there are reasons why these are perhaps not actually equivalent, and indeed this is mainly what I'd like to read in the literature I've requested above. Cheers, Gabriele -- "Egli è scritto in lingua matematica, e i caratteri son triangoli, cerchi, ed altre figure geometriche, senza i quali mezzi è impossibile a intenderne umanamente parola; senza questi è un aggirarsi vanamente per un oscuro laberinto." -- G. Galilei, Il saggiatore.

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Python 3.10 vs 3.8 performance degradation
by aivazian.tigran＠gmail.com Dec. 20, 2021

Dec. 20, 2021

Hello, Being a programmer myself I realise that a report on performance degradation should ideally contain a small test program that clearly reproduces the problem. However, unfortunately, I do not have the time at present to isolate the issue to a small test case. But the good news (or bad news, I suppose) is that the problem appears to be reasonably general, namely it happens with two completely different programs. Anyway, what I am claiming is that Python 3.10 is between 1.5 and 2.5 times SLOWER than Python 3.8, for rather generic scientific calculations such as Fourier analysis, ODE solving and plotting. On the one hand, the "test case" is a rather complex program that calculates Wigner function of a quantum system and the result is 9 seconds when run with 3.8 and 23 seconds when run with 3.10 (very easy to reproduce: just clone this repository: https://github.com/tigran123/quantum-infodynamics and run "time bin/harmonic-oscillator-solve.sh" from the dynamics subdirectory and then edit initgauss.py and solve.py to point to python3.10 and run it again). Make sure your TMPDIR points somewhere fast. My machine is a very fast 6-core i7-6800K at 4.2GHz and 128GB RAM. The storage is also a very fast NVMe, about 3GB/s. After this try a completely different program which simulates a mathematical pendulum using PyQT (GUI) and it gives FPS:14-15 when run with 3.8 and only 11-12 when run with 3.10. Again, it is easy to reproduce if you have cloned the above repository: just go to classical-mechanics/pendulum subdirectory and run psim.py (click on the Play button in the control window and observe FPS in the plot window). Then edit psim.py to point to Python 3.10 and run it again. You would need PyQt5, matplotlib, numpy, scipy, pyFFTW for these programs to work. I realise that you would much prefer a small specific test case, but I still hope that this report is "better than nothing". I do really desire to help improve Python and will provide more information if requested. I use Python everywhere, even in Termux on Android, and am quite saddened by this degradation... With Python 3.8 I used these package versions: matplotlib 3.1.3 numpy 1.18.1 pyFFTW 0.12.0 PyQt5 5.13.2 scipy 1.4.1 With Python 3.10 I used these package versions: matplotlib 3.5.0 numpy 1.21.4 pyFFTW 0.12.0 PyQt5 5.15.6 scipy 1.7.3 Both Python 3.8 and 3.10 were compiled and installed by myself with "./configure --enable-optimizations ; make ; sudo make install". Kind regards, Tigran

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