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* bpo-37840: Fix handling of negative indices in bytearray_getitem() (GH-15250)Sergey Fedoseev2019-09-091-0/+13
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* bpo-35941: Fix performance regression in new code (GH-12610)Christian Heimes2019-09-091-28/+27
| | | | | | | | Accumulate certificates in a set instead of doing a costly list contain operation. A Windows cert store can easily contain over hundred certificates. The old code would result in way over 5,000 comparison operations Signed-off-by: Christian Heimes <christian@python.org>
* bpo-37649: Fix exec_prefix check (GH-14897)Orivej Desh2019-09-091-1/+1
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* bpo-36279: Ensure os.wait3() rusage is initialized (GH-15111)Zackery Spytz2019-09-091-0/+6
| | | Co-Authored-By: David Wilson <dw@botanicus.net>
* bpo-38070: visit_decref() calls _PyObject_IsFreed() (GH-15782)Victor Stinner2019-09-091-0/+2
| | | | | | In debug mode, visit_decref() now calls _PyObject_IsFreed() to ensure that the object is not freed. If it's freed, the program fails with an assertion error and Python dumps informations about the freed object.
* bpo-38037: Fix reference counters in signal module (GH-15753)animalize2019-09-091-8/+17
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* bpo-37702: Fix SSL's certificate-store leak on Windows (GH-15632)neonene2019-09-091-0/+1
| | | | | ssl_collect_certificates function in _ssl.c has a memory leak. Calling CertOpenStore() and CertAddStoreToCollection(), a store's refcnt gets incremented by 2. But CertCloseStore() is called only once and the refcnt leaves 1.
* bpo-37445: Include FORMAT_MESSAGE_IGNORE_INSERTS in FormatMessageW() calls ↵Zackery Spytz2019-09-092-2/+5
| | | | | (GH-14462) If FormatMessageW() is passed the FORMAT_MESSAGE_FROM_SYSTEM flag without FORMAT_MESSAGE_IGNORE_INSERTS, it will fail if there are insert sequences in the message definition.
* bpo-38043: Use `bool` for boolean flags on is_normalized_quickcheck. (GH-15711)Greg Price2019-09-091-11/+11
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* bpo-34410: Fix a crash in the tee iterator when re-enter it. (GH-15625)Serhiy Storchaka2019-09-091-0/+9
| | | | RuntimeError is now raised in this case.
* Revert "Raise a RuntimeError when tee iterator is consumed from different ↵Serhiy Storchaka2019-09-091-8/+0
| | | | | threads (GH-15567)" (GH-15736) This reverts commit fa220ec7633e9674baccc28dde987f29d7f65141.
* bpo-36946:Fix possible signed integer overflow when handling slices. (GH-15639)HongWeipeng2019-09-081-1/+2
| | | | This is a complement to PR 13375.
* Remove some unused defines in multiprocessing.h. (GH-15661)Sergey Fedoseev2019-09-071-10/+0
| | | | | It looks like they are unused since 87cf220972c9cb400ddcd577962883dcc5dca51a.
* bpo-37878: Remove PyThreadState_DeleteCurrent() function (GH-15315)Joannah Nanjekye2019-09-052-4/+9
| | | | | | | * Rename PyThreadState_DeleteCurrent() to _PyThreadState_DeleteCurrent() * Move it to the internal C API Co-Authored-By: Carol Willing <carolcode@willingconsulting.com>
* bpo-38030: Fix os.stat failures on block devices on Windows (GH-15681)Steve Dower2019-09-041-6/+13
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* closes bpo-37966: Fully implement the UAX #15 quick-check algorithm. (GH-15558)Greg Price2019-09-041-24/+51
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The purpose of the `unicodedata.is_normalized` function is to answer the question `str == unicodedata.normalized(form, str)` more efficiently than writing just that, by using the "quick check" optimization described in the Unicode standard in UAX #15. However, it turns out the code doesn't implement the full algorithm from the standard, and as a result we often miss the optimization and end up having to compute the whole normalized string after all. Implement the standard's algorithm. This greatly speeds up `unicodedata.is_normalized` in many cases where our partial variant of quick-check had been returning MAYBE and the standard algorithm returns NO. At a quick test on my desktop, the existing code takes about 4.4 ms/MB (so 4.4 ns per byte) when the partial quick-check returns MAYBE and it has to do the slow normalize-and-compare: $ build.base/python -m timeit -s 'import unicodedata; s = "\uf900"*500000' \ -- 'unicodedata.is_normalized("NFD", s)' 50 loops, best of 5: 4.39 msec per loop With this patch, it gets the answer instantly (58 ns) on the same 1 MB string: $ build.dev/python -m timeit -s 'import unicodedata; s = "\uf900"*500000' \ -- 'unicodedata.is_normalized("NFD", s)' 5000000 loops, best of 5: 58.2 nsec per loop This restores a small optimization that the original version of this code had for the `unicodedata.normalize` use case. With this, that case is actually faster than in master! $ build.base/python -m timeit -s 'import unicodedata; s = "\u0338"*500000' \ -- 'unicodedata.normalize("NFD", s)' 500 loops, best of 5: 561 usec per loop $ build.dev/python -m timeit -s 'import unicodedata; s = "\u0338"*500000' \ -- 'unicodedata.normalize("NFD", s)' 500 loops, best of 5: 512 usec per loop
* bpo-38020: Fixes crash in os.readlink() on Windows (GH-15663)Steve Dower2019-09-031-2/+2
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* bpo-37798: Fix _statistics module doc (GH-15546)Dong-hee Na2019-09-031-1/+4
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* bpo-15999: Clean up of handling boolean arguments. (GH-15610)Serhiy Storchaka2019-09-016-23/+20
| | | | | | * Use the 'p' format unit instead of manually called PyObject_IsTrue(). * Pass boolean value instead 0/1 integers to functions that needs boolean. * Convert some arguments to boolean only once.
* bpo-15999: Always pass bool instead of int to socket.setblocking(). (GH-15621)Serhiy Storchaka2019-09-011-1/+1
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* bpo-37994: Fix silencing all errors if an attribute lookup fails. (GH-15630)Serhiy Storchaka2019-09-015-22/+28
| | | Only AttributeError should be silenced.
* bpo-36543: Remove old-deprecated ElementTree features. (GH-12707)Serhiy Storchaka2019-09-012-114/+1
| | | | | Remove methods Element.getchildren(), Element.getiterator() and ElementTree.getiterator() and the xml.etree.cElementTree module.
* bpo-37990: fix gc stats (GH-15626)Inada Naoki2019-08-311-2/+3
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* Fix typos mostly in comments, docs and test names (GH-15209)Min ho Kim2019-08-308-11/+11
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* bpo-37140: Fix StructUnionType_paramfunc() (GH-15612)Victor Stinner2019-08-301-14/+59
| | | | | | | | | | | | Fix a ctypes regression of Python 3.8. When a ctypes.Structure is passed by copy to a function, ctypes internals created a temporary object which had the side effect of calling the structure finalizer (__del__) twice. The Python semantics requires a finalizer to be called exactly once. Fix ctypes internals to no longer call the finalizer twice. Create a new internal StructParam_Type which is only used by _ctypes_callproc() to call PyMem_Free(ptr) on Py_DECREF(argument). StructUnionType_paramfunc() creates such object.
* bpo-37976: Prevent shadowing of TypeError in zip() (GH-15592)Sergey Fedoseev2019-08-301-4/+0
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* bpo-37933: Fix faulthandler.cancel_dump_traceback_later() (GH-15440)Thomas A Caswell2019-08-291-0/+5
| | | | Fix faulthandler.cancel_dump_traceback_later() call if cancel_dump_traceback_later() was not called previously.
* bpo-37034: Display argument name on errors with keyword arguments with ↵Rémi Lapeyre2019-08-2939-332/+332
| | | | Argument Clinic. (GH-13593)
* bpo-36833: Add tests for Datetime C API Macros (GH-14842)Joannah Nanjekye2019-08-291-0/+53
| | | | Added tests for PyDateTime_xxx_GET_xxx() macros of the C API of the datetime module.
* bpo-37372: Fix error unpickling datetime.time objects from Python 2 with ↵Justin Blanchard2019-08-291-1/+1
| | | | seconds>=24. (GH-14307)
* bpo-37960: Silence only necessary errors in repr() of buffered and text ↵Serhiy Storchaka2019-08-292-18/+16
| | | | streams. (GH-15543)
* Raise a RuntimeError when tee iterator is consumed from different threads ↵HongWeipeng2019-08-291-0/+8
| | | | (GH-15567)
* closes bpo-37964: add F_GETPATH command to fcntl (GH-15550)Vinay Sharma2019-08-291-0/+3
| | | | | | | https://bugs.python.org/issue37964 Automerge-Triggered-By: @benjaminp
* bpo-37951: Lift subprocess's fork() restriction (GH-15544)Christian Heimes2019-08-271-2/+4
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* bpo-36205: Fix the rusage implementation of time.process_time() (GH-15538)vrajivk2019-08-271-1/+1
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* bpo-37798: Minor code formatting and comment clean-ups. (GH-15526)Raymond Hettinger2019-08-261-13/+22
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* bpo-37055: fix warnings in _blake2 module (GH-14646)Inada Naoki2019-08-263-19/+0
| | | | | | | https://bugs.python.org/issue37055 Automerge-Triggered-By: @tiran
* bpo-37942: Improve argument clinic float converter (GH-15470)Raymond Hettinger2019-08-255-92/+266
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* bpo-37798: Add C fastpath for statistics.NormalDist.inv_cdf() (GH-15266)Dong-hee Na2019-08-233-0/+173
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* bpo-37915: Fix comparison between tzinfo objects and timezone objects (GH-15390)Pablo Galindo2019-08-221-1/+2
| | | | | | | https://bugs.python.org/issue37915 Automerge-Triggered-By: @pablogsal
* bpo-37834: Normalise handling of reparse points on Windows (GH-15231)Steve Dower2019-08-213-199/+214
| | | | | | | | | | bpo-37834: Normalise handling of reparse points on Windows * ntpath.realpath() and nt.stat() will traverse all supported reparse points (previously was mixed) * nt.lstat() will let the OS traverse reparse points that are not name surrogates (previously would not traverse any reparse point) * nt.[l]stat() will only set S_IFLNK for symlinks (previous behaviour) * nt.readlink() will read destinations for symlinks and junction points only bpo-1311: os.path.exists('nul') now returns True on Windows * nt.stat('nul').st_mode is now S_IFCHR (previously was an error)
* Revert mode change that loses information in directory listings on Linux. ↵Stefan Krah2019-08-211-0/+0
| | | | (#15366)
* bpo-37851: faulthandler allocates its stack on demand (GH-15358)Victor Stinner2019-08-211-48/+98
| | | | | | | | | | | | | | | | | | The faulthandler module no longer allocates its alternative stack at Python startup. Now the stack is only allocated at the first faulthandler usage. faulthandler no longer ignores memory allocation failure when allocating the stack. sigaltstack() failure now raises an OSError exception, rather than being ignored. The alternative stack is no longer used if sigaction() is not available. In practice, sigaltstack() should only be available when sigaction() is avaialble, so this change should have no effect in practice. faulthandler.dump_traceback_later() internal locks are now only allocated at the first dump_traceback_later() call, rather than always being allocated at Python startup.
* Unmark files as executable that can't actually be executed. (GH-15353)Greg Price2019-08-214-0/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | There are plenty of legitimate scripts in the tree that begin with a `#!`, but also a few that seem to be marked executable by mistake. Found them with this command -- it gets executable files known to Git, filters to the ones that don't start with a `#!`, and then unmarks them as executable: $ git ls-files --stage \ | perl -lane 'print $F[3] if (!/^100644/)' \ | while read f; do head -c2 "$f" | grep -qxF '#!' \ || chmod a-x "$f"; \ done Looking at the list by hand confirms that we didn't sweep up any files that should have the executable bit after all. In particular * The `.psd` files are images from Photoshop. * The `.bat` files sure look like things that can be run. But we have lots of other `.bat` files, and they don't have this bit set, so it must not be needed for them. Automerge-Triggered-By: @benjaminp
* Remove a dead comment from ossaudiodev.c (#15346)Brett Cannon2019-08-201-2/+0
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* bpo-15913: Implement PyBuffer_SizeFromFormat() (GH-13873)Joannah Nanjekye2019-08-201-0/+21
| | | | Implement PyBuffer_SizeFromFormat() function (previously documented but not implemented): call struct.calcsize().
* Replace usage of the obscure PEM_read_bio_X509_AUX with the more standard ↵Alex Gaynor2019-08-151-1/+1
| | | | | | | PEM_read_bio_X509 (GH-15303) X509_AUX is an odd, note widely used, OpenSSL extension to the X509 file format. This function doesn't actually use any of the extra metadata that it parses, so just use the standard API. Automerge-Triggered-By: @tiran
* bpo-21131: Fix faulthandler.register(chain=True) stack (GH-15276)Victor Stinner2019-08-141-1/+5
| | | | | | faulthandler now allocates a dedicated stack of SIGSTKSZ*2 bytes, instead of just SIGSTKSZ bytes. Calling the previous signal handler in faulthandler signal handler uses more than SIGSTKSZ bytes of stack memory on some platforms.
* bpo-37811: FreeBSD, OSX: fix poll(2) usage in sockets module (GH-15202)Artem Khramov2019-08-141-0/+11
| | | | | | | | | | | | | | | | FreeBSD implementation of poll(2) restricts the timeout argument to be either zero, or positive, or equal to INFTIM (-1). Unless otherwise overridden, socket timeout defaults to -1. This value is then converted to milliseconds (-1000) and used as argument to the poll syscall. poll returns EINVAL (22), and the connection fails. This bug was discovered during the EINTR handling testing, and the reproduction code can be found in https://bugs.python.org/issue23618 (see connect_eintr.py, attached). On GNU/Linux, the example runs as expected. This change is trivial: If the supplied timeout value is negative, truncate it to -1.
* bpo-37738: Fix curses addch(str, color_pair) (GH-15071)Victor Stinner2019-08-141-3/+15
| | | | | Fix the implementation of curses addch(str, color_pair): pass the color pair to setcchar(), instead of always passing 0 as the color pair.
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