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* bpo-39357: Remove buffering parameter of bz2.BZ2File (GH-18028)Victor Stinner2020-01-165-15/+26
| | | | | | | Remove the buffering parameter of bz2.BZ2File. Since Python 3.0, it was ignored and using it was emitting a DeprecationWarning. Pass an open file object to control how the file is opened. The compresslevel parameter becomes keyword-only.
* bpo-31031: Unify duplicate bits_in_digit and bit_length (GH-2866)Niklas Fiekas2020-01-164-54/+35
| | | Add _Py_bit_length() to unify duplicate bits_in_digit() and bit_length().
* bpo-39350: Remove deprecated fractions.gcd() (GH-18021)Victor Stinner2020-01-165-60/+9
| | | | Remove fractions.gcd() function, deprecated since Python 3.5 (bpo-22486): use math.gcd() instead.
* bpo-39351: Remove base64.encodestring() (GH-18022)Victor Stinner2020-01-165-36/+8
| | | | | Remove base64.encodestring() and base64.decodestring(), aliases deprecated since Python 3.1: use base64.encodebytes() and base64.decodebytes() instead.
* bpo-39348: Fix code highlight for the SOCK_NONBLOCK example (GH-18018)Oz N Tiram2020-01-151-1/+3
| | | | | | | | | | | The previous double colon was wrongly place directly after Therefore. Which produced a block without syntax highlighting. This fixes it by separating the double colon from the text. As a result, sphinx now properly highlights the python code. https://bugs.python.org/issue39348
* bpo-37958: Adding get_profile_dict to pstats (GH-15495)Daniel Olshansky2020-01-154-4/+90
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pstats is really useful or profiling and printing the output of the execution of some block of code, but I've found on multiple occasions when I'd like to access this output directly in an easily usable dictionary on which I can further analyze or manipulate. The proposal is to add a function called get_profile_dict inside of pstats that'll automatically return this data the data in an easily accessible dict. The output of the following script: ``` import cProfile, pstats import pprint from pstats import func_std_string, f8 def fib(n): if n == 0: return 0 if n == 1: return 1 return fib(n-1) + fib(n-2) pr = cProfile.Profile() pr.enable() fib(5) pr.create_stats() ps = pstats.Stats(pr).sort_stats('tottime', 'cumtime') def get_profile_dict(self, keys_filter=None): """ Returns a dict where the key is a function name and the value is a dict with the following keys: - ncalls - tottime - percall_tottime - cumtime - percall_cumtime - file_name - line_number keys_filter can be optionally set to limit the key-value pairs in the retrieved dict. """ pstats_dict = {} func_list = self.fcn_list[:] if self.fcn_list else list(self.stats.keys()) if not func_list: return pstats_dict pstats_dict["total_tt"] = float(f8(self.total_tt)) for func in func_list: cc, nc, tt, ct, callers = self.stats[func] file, line, func_name = func ncalls = str(nc) if nc == cc else (str(nc) + '/' + str(cc)) tottime = float(f8(tt)) percall_tottime = -1 if nc == 0 else float(f8(tt/nc)) cumtime = float(f8(ct)) percall_cumtime = -1 if cc == 0 else float(f8(ct/cc)) func_dict = { "ncalls": ncalls, "tottime": tottime, # time spent in this function alone "percall_tottime": percall_tottime, "cumtime": cumtime, # time spent in the function plus all functions that this function called, "percall_cumtime": percall_cumtime, "file_name": file, "line_number": line } func_dict_filtered = func_dict if not keys_filter else { key: func_dict[key] for key in keys_filter } pstats_dict[func_name] = func_dict_filtered return pstats_dict pp = pprint.PrettyPrinter(depth=6) pp.pprint(get_profile_dict(ps)) ``` will produce: ``` {"<method 'disable' of '_lsprof.Profiler' objects>": {'cumtime': 0.0, 'file_name': '~', 'line_number': 0, 'ncalls': '1', 'percall_cumtime': 0.0, 'percall_tottime': 0.0, 'tottime': 0.0}, 'create_stats': {'cumtime': 0.0, 'file_name': '/usr/local/Cellar/python/3.7.4/Frameworks/Python.framework/Versions/3.7/lib/python3.7/cProfile.py', 'line_number': 50, 'ncalls': '1', 'percall_cumtime': 0.0, 'percall_tottime': 0.0, 'tottime': 0.0}, 'fib': {'cumtime': 0.0, 'file_name': 'get_profile_dict.py', 'line_number': 5, 'ncalls': '15/1', 'percall_cumtime': 0.0, 'percall_tottime': 0.0, 'tottime': 0.0}, 'total_tt': 0.0} ``` As an example, this can be used to generate a stacked column chart using various visualization tools which will assist in easily identifying program bottlenecks. https://bugs.python.org/issue37958 Automerge-Triggered-By: @gpshead
* Fix typo in multiprocessing.pool.AsyncResult.successful doc. (GH-17932)Antoine2020-01-151-1/+1
| | | | | | | | Since 3.7 `successful` raises a `ValueError` as explained in the next text block from the documentation: _Changed in version 3.7: If the result is not ready, ValueError is raised instead of AssertionError._ No issue associated with this PR. Should be backported in 3.7 and 3.8.
* Fix compiler warning on Windows (GH-18012)Ammar Askar2020-01-151-1/+1
| | | | | | | | Python-ast.h contains a macro named Yield that conflicts with the Yield macro in Windows system headers. While Python-ast.h has an "undef Yield" directive to prevent this, it means that Python-ast.h must be included before Windows header files or we run into a re-declaration warning. In commit c96be811fa7d an include for pycore_pystate.h was added which indirectly includes Windows header files. In this commit we re-order the includes to fix this warning.
* bpo-38630: Fix subprocess.Popen.send_signal() race condition (GH-16984)Victor Stinner2020-01-154-3/+57
| | | | | | | On Unix, subprocess.Popen.send_signal() now polls the process status. Polling reduces the risk of sending a signal to the wrong process if the process completed, the Popen.returncode attribute is still None, and the pid has been reassigned (recycled) to a new different process.
* bpo-1635741: Port _json extension module to multiphase initialization (PEP ↵Hai Shi2020-01-152-23/+31
| | | | 489) (GH-17835)
* bpo-39164: Fix compiler warning in PyErr_GetExcInfo() (GH-18010)Victor Stinner2020-01-151-1/+1
| | | The function has no return value.
* Fix AsyncMock base class in the docs (GH-18008)Elena Oat2020-01-151-1/+1
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* Improve test coverage for AsyncMock. (GH-17906)Karthikeyan Singaravelan2020-01-151-4/+49
| | | | | * Add test for nested async decorator patch. * Add test for side_effect and wraps with a function. * Add test for side_effect with an exception in the iterable.
* Allow pgen to produce a DOT format dump of the grammar (GH-18005)Pablo Galindo2020-01-143-2/+46
| | | Originally suggested by Anthony Shaw.
* bpo-39329: Add timeout parameter for smtplib.LMTP constructor (GH-17998)Dong-hee Na2020-01-145-33/+61
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* bpo-38901: Allow setting a venv's prompt to the basename of the current ↵Vinay Sajip2020-01-144-1/+16
| | | | | | directory. (GH-17946) When a prompt value of '.' is specified, os.path.basename(os.getcwd()) is used to configure the prompt for the created venv.
* venv: Suppress warning message when bash hashing is disabled. (GH-17966)Dima2020-01-141-2/+2
| | | | | | | | | | | | | When using python's built-in venv activaton script warnings are printed when hashing is disabled in bash or zsh, like; `bash: hash: hashing disabled` This output is not really useful to the end-user and has been disabled in `virtualenv` for long. This commit is based on: https://github.com/pypa/virtualenv/commit/28e85bcd80d04b2a7ebce0e1d0b02d432b7e5593
* Fix documentation in code.py (GH-17988)Kyle Pollina2020-01-142-2/+2
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* bpo-38361: syslog: fixed making default "ident" from sys.argv[0] (GH-16557)Václav Bartoš2020-01-142-1/+2
| | | | | | | | | | The default value of "ident" parameter should be sys.argv[0] with leading path components stripped, but it contained the last slash, i.e. '/program' instead of 'program'. BPO issue: https://bugs.python.org/issue38361 https://bugs.python.org/issue38361
* bpo-39322: Add gc.is_finalized to the gc module docstring (GH-18000)Pablo Galindo2020-01-141-0/+1
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* bpo-39322: Add gc.is_finalized to check if an object has been finalised by ↵Pablo Galindo2020-01-146-1/+75
| | | | the gc (GH-17989)
* bpo-39048: Look up __aenter__ before __aexit__ in async with (GH-17609)Géry Ogam2020-01-145-19/+27
| | | | | | * Reorder the __aenter__ and __aexit__ checks for async with * Add assertions for async with body being skipped * Swap __aexit__ and __aenter__ loading in the documentation
* bpo-39156: Break up COMPARE_OP into four logically distinct opcodes. (GH-17754)Mark Shannon2020-01-1417-4847/+4901
| | | | | | | | Break up COMPARE_OP into four logically distinct opcodes: * COMPARE_OP for rich comparisons * IS_OP for 'is' and 'is not' tests * CONTAINS_OP for 'in' and 'is not' tests * JUMP_IF_NOT_EXC_MATCH for checking exceptions in 'try-except' statements.
* bpo-39259: smtp.SMTP/SMTP_SSL now reject timeout = 0 (GH-17958)Dong-hee Na2020-01-145-7/+29
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* bpo-39160 Align the verbs, grammar and defaults for `./configure --help` ↵Anthony Shaw2020-01-144-95/+135
| | | | (GH-17747)
* bpo-39259: ftplib.FTP/FTP_TLS now reject timeout = 0 (GH-17959)Dong-hee Na2020-01-135-5/+27
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* remove unused __version__ from mock.py (#17977)Chris Withers2020-01-131-2/+0
| | | This isn't included in `__all__` and could be a source of confusion.
* bpo-38644: Pass tstate to _Py_FinishPendingCalls() (GH-17990)Victor Stinner2020-01-133-4/+4
| | | | _Py_FinishPendingCalls() now expects a tstate argument, instead of a runtime argument.
* bpo-39164: Add private _PyErr_GetExcInfo() function (GH-17752)Julien Danjou2020-01-133-4/+12
| | | | | | This adds a new function named _PyErr_GetExcInfo() that is a variation of the original PyErr_GetExcInfo() taking a PyThreadState as its first argument. That function allows to retrieve the exceptions information of any Python thread -- not only the current one.
* bpo-39299: Add more tests for mimetypes and its cli. (GH-17949)Karthikeyan Singaravelan2020-01-132-5/+85
| | | | | | | * Add tests for case insensitive check of types and extensions as fallback. * Add tests for data url with no comma. * Add tests for read_mime_types. * Add tests for the mimetypes cli and refactor __main__ code to private function. * Restore mimetypes.knownfiles value at the end of the test.
* bpo-20443: Update What's New In Python 3.9 (GH-17986)Victor Stinner2020-01-131-1/+1
| | | The sys.argv[0] change has been reverted.
* Cleanup exit code for interpreter. (GH-17756)Mark Shannon2020-01-132-42/+5
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* Fix typos in gcmodule.c and restructure comments for clarity (GH-17983)Pablo Galindo2020-01-131-44/+36
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* Remove unused functions in Parser/parsetok.c (GH-17365)Emmanuel Arias2020-01-131-18/+0
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* bpo-39310: Add math.ulp(x) (GH-17965)Victor Stinner2020-01-137-37/+144
| | | | Add math.ulp(): return the value of the least significant bit of a float.
* bpo-39307: Fix memory leak on error path in parsetok (GH-17953)Alex Henrie2020-01-131-0/+1
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* bpo-32021: Support brotli .br encoding in mimetypes (#12200)Philip McMahon2020-01-122-0/+2
| | | | | | Add support for brotli encoding in the encoding_map.
* bpo-39313: Add an option to RefactoringTool for using exec as a function ↵Batuhan Taşkaya2020-01-125-8/+23
| | | | | | | | (GH-17967) https://bugs.python.org/issue39313 Automerge-Triggered-By: @pablogsal
* Fix outdated comment in _strptime.py (GH-17929)Ram Rachum2020-01-121-1/+1
| | | Can I please get the tags for skipping bpo and skipping a news item?
* bpo-3530: Add advice on when to correctly use fix_missing_locations in the ↵Batuhan Taşkaya2020-01-122-1/+11
| | | | | | AST docs (GH-17172) Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
* bpo-38293: Allow shallow and deep copying of property objects (GH-16438)Guðni Natan Gunnarsson2020-01-123-3/+5
| | | | | | | | | | | | | | | | | | Copying property objects results in a TypeError. Steps to reproduce: ``` >>> import copy >>> obj = property() >>> copy.copy(obj) ```` This affects both shallow and deep copying. My idea for a fix is to add property objects to the list of "atomic" objects in the copy module. These already include types like functions and type objects. I also added property objects to the unit tests test_copy_atomic and test_deepcopy_atomic. This is my first PR, and it's highly likely I've made some mistake, so please be kind :) https://bugs.python.org/issue38293
* bpo-39288: Add examples to math.nextafter() documentation (GH-17962)Victor Stinner2020-01-121-0/+7
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* bpo-38356: Fix ThreadedChildWatcher thread leak in test_asyncio (GH-16552)Kyle Stanley2020-01-121-1/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Motivation for this PR (comment from @vstinner in bpo issue): ``` Warning seen o AMD64 Ubuntu Shared 3.x buildbot: https://buildbot.python.org/all/#/builders/141/builds/2593 test_devnull_output (test.test_a=syncio.test_subprocess.SubprocessThreadedWatcherTests) ... Warning -- threading_cleanup() failed to cleanup 1 threads (count: 1, dangling: 2) ``` The following implementation details for the new method are TBD: 1) Public vs private 2) Inclusion in `close()` 3) Name 4) Coroutine vs subroutine method 5) *timeout* parameter If it's a private method, 3, 4, and 5 are significantly less important. I started with the most minimal implementation that fixes the dangling threads without modifying the regression tests, which I think is particularly important. I typically try to avoid directly modifying existing tests as much as possible unless it's necessary to do so. However, I am open to changing any part of this. https://bugs.python.org/issue38356
* bpo-12159: Document sys.maxsize limit in len() function reference (GH-17934)Zac Hatfield-Dodds2020-01-121-0/+5
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* bpo-16575: Disabled checks for union types being passed by value. (GH-17960)Vinay Sajip2020-01-122-1/+20
| | | | | | | Although the underlying libffi issue remains open, adding these checks have caused problems in third-party projects which are in widespread use. See the issue for examples. The corresponding tests have also been skipped.
* bpo-39288: Add math.nextafter(x, y) (GH-17937)Victor Stinner2020-01-126-1/+140
| | | Return the next floating-point value after x towards y.
* bpo-39259: nntplib.NNTP/NNTP_SSL now reject timeout = 0 (GH-17936)Dong-hee Na2020-01-115-0/+24
| | | | | nntplib.NNTP and nntplib.NNTP_SSL now raise a ValueError if the given timeout for their constructor is zero to prevent the creation of a non-blocking socket.
* bpo-39297: Update for importlib_metadata 1.4. (GH-17947)Jason R. Coombs2020-01-112-36/+73
| | | | | | | | | | * bpo-39297: Update for importlib_metadata 1.4. Includes performance updates. * 📜🤖 Added by blurb_it. * Update blurb Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
* bpo-39259: nntplib.NNTP/NNTP_SSL refactoring (GH-17939)Dong-hee Na2020-01-111-24/+18
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* Fix host in address of socket.create_server example. (GH-17706)Karthikeyan Singaravelan2020-01-111-1/+1
| | | Host as None in address raises TypeError since it should be string, bytes or bytearray.
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