in addition to global-statement also mention nonlocal-statement
(in the paragraph describing access to variables which are non local to a function
(cherry picked from commit e1f95e77e0647aff602e0660ba3c282b71045875)
Petr Viktorin [Wed, 29 May 2019 03:35:33 +0000 (05:35 +0200)]
[3.7] Fix a possible crash due to PyType_FromSpecWithBases() (GH-10304) (GH-13495)
If the PyObject_MALLOC() call failed in PyType_FromSpecWithBases(),
PyObject_Free() would be called on a static string in type_dealloc().
(cherry picked from commit 0613c1e481440aa8f54ba7f6056924c175fbcc13)
bpo-26423: Fix possible overflow in wrap_lenfunc() (GH-13606)
Fix possible overflow in wrap_lenfunc() when
sizeof(long) < sizeof(Py_ssize_t) (e.g., 64-bit Windows).
(cherry picked from commit 05f16416d99dc9fc76fef11e56f16593e7a5955e)
bpo-37054, _pyio: Fix BytesIO and TextIOWrapper __del__() (GH-13601)
Fix destructor _pyio.BytesIO and _pyio.TextIOWrapper: initialize
their _buffer attribute as soon as possible (in the class body),
because it's used by __del__() which calls close().
(cherry picked from commit a3568417c49f36860393075b21c93996a5f6799b)
Co-authored-by: Victor Stinner <vstinner@redhat.com>
Move doc entry to match menu and refactor zoom function.
A followup patch will include a blurb.
(cherry picked from commit df9b032f47e4edaf306d95449370e565ee470018)
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
bpo-23395: Fix PyErr_SetInterrupt if the SIGINT signal is ignored or not handled (GH-7778)
``_thread.interrupt_main()`` now avoids setting the Python error status if the ``SIGINT`` signal is ignored or not handled by Python.
(cherry picked from commit 608876b6b1eb59538e6c29671a733033fb8b5be7)
bpo-35091: Objects/listobject.c: Replace overflow checks in gallop fu… (GH-10202)
…nctions with asserts
The actual overflow can never happen because of the following:
* The size of a list can't be greater than PY_SSIZE_T_MAX / sizeof(PyObject*).
* The size of a pointer on all supported plaftorms is at least 4 bytes.
* ofs is positive and less than the list size at the beginning of each iteration.
bpo-33110: Catch errors raised when running add_done_callback on already completed futures (GH-13141)
Wrap the callback call within the `add_done_callback` function within concurrent.futures, in order to behave in an identical manner to callbacks added to a running future are triggered once it has completed.
(cherry picked from commit 2a3a2ece502c05ea33c95dd0db497189e0354bfd)
Co-authored-by: Sam Martin <ABitMoreDepth@users.noreply.github.com>
PyErr_WriteUnraisable() now displays the exception even if displaying
the traceback failed. Moreover, hold a strong reference to sys.stderr
while using it.
Document that an exception must be set when calling
PyErr_WriteUnraisable(), but don't add an assertion to check it at
runtime.
Cleanup: use longer names for variables and create
write_unraisable_exc_file() subfunction.
bpo-36929: Modify io/re tests to allow for missing mod name (GH-13392)
* bpo-36929: Modify io/re tests to allow for missing mod name
For a vanishingly small number of internal types, CPython sets the
tp_name slot to mod_name.type_name, either in the PyTypeObject or the
PyType_Spec. There are a few minor places where this surfaces:
* Custom repr functions for those types (some of which ignore the
tp_name in favor of using a string literal, such as _io.TextIOWrapper)
* Pickling error messages
The test suite only tests the former. This commit modifies the test
suite to allow Python implementations to omit the module prefix.
bpo-1875: Raise SyntaxError in invalid blocks that will be optimised away (GH-13332)
Move the check for dead conditionals (if 0) to the peephole optimizer
and make sure that the code block is still compiled to report any
existing syntax errors within.
(cherry picked from commit af8646c8054d0f4180a2013383039b6a472f9698)
Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
This PR proposes a solution to [bpo-35545](https://bugs.python.org/issue35545) by adding an optional `flowinfo` and `scopeid` to `asyncio.base_events._ipaddr_info` to carry the full address information into `_ipaddr_info` and avoid discarding IPv6 specific information.
bpo-36946: Fix possible signed integer overflow when handling slices. (GH-13375)
The final addition (cur += step) may overflow, so use size_t for "cur".
"cur" is always positive (even for negative steps), so it is safe to use
size_t here.
bpo-36915: regrtest always remove tempdir of worker processes (GH-13312)
When using multiprocessing (-jN option), worker processes now create
their temporary directory inside the temporary directory of the
main process. So the main process is able to remove temporary
directories of worker processes even if they crash or when they are
killed by regrtest on KeyboardInterrupt (CTRL+c).
MultiprocessThread.kill() now closes stdout and stderr to prevent
popen.communicate() to hang.
(cherry picked from commit c923c3449f825021b13521b2380e67ba35a36f55)
Co-authored-by: Victor Stinner <vstinner@redhat.com>
bpo-24538: Fix bug in shutil involving the copying of xattrs to read-only files. (PR-13212) (#13234)
Extended attributes can only be set on user-writeable files, but shutil previously
first chmod()ed the destination file to the source's permissions and then tried to
copy xattrs. This will cause failures if attempting to copy read-only files with
xattrs, as occurs with Git clones on Lustre FS.
(cherry picked from commit 79efbb719383386051c72f2ee932eeca8e033e6b)
- Adds an "Examples of usage" section inspired by the one
found in the gzip docs
- Corrects the descriptions for ``compresslevel`` and ``data``:
- ``compresslevel`` must be an `int`, not any number. For
instance, passing a float will raise ``TypeError``
- Notes that `data` must be bytes-like
(cherry picked from commit be6939fb02e65b56c45377940b339d150b124d05)
bpo-36719: regrtest -jN no longer stops on crash (GH-13231)
"python3 -m test -jN ..." now continues the execution of next tests
when a worker process crash (CHILD_ERROR state). Previously, the test
suite stopped immediately. Use --failfast to stop at the first error.
Update 'unicode' capitalization. 'Unicode' is a proper noun, and as such should be capitalized.
Changed multiple instances.
(cherry picked from commit 85225b6a58a516c50c055d5114668ed2fcdcda8c)
[3.7] bpo-36533: Reinit logging.Handler locks on fork(). (GH-12704) (GH-13170)
Instead of attempting to acquire and release them all across fork
which was leading to deadlocks in some applications that had chained
their own handlers while holding multiple locks.
(cherry picked from commit 64aa6d2000665efb1a2eccae176df9520bf5f5e6)
Co-authored-by: Gregory P. Smith <greg@krypto.org> [Google LLC]
bpo-35125: remove inner callback on outer cancellation in asyncio shield (GH-10340)
When the future returned by shield is cancelled, its completion callback of the
inner future is not removed. This makes the callback list of inner inner future
grow each time a shield is created and cancelled.
This change unregisters the callback from the inner future when the outer
future is cancelled.
bpo-31922: Do not connect UDP sockets when broadcast is allowed (GH-423)
*Moved from python/asyncioGH-493.*
This PR fixes issue python/asyncioGH-480, as explained in [this comment](https://github.com/python/asyncio/issues/480GH-issuecomment-278703828).
The `_SelectorDatagramTransport.sendto` method has to be modified ~~so `_sock.sendto` is used in all cases (because it is tricky to reliably tell if the socket is connected or not). Could that be an issue for connected sockets?~~ *EDIT* ... so `_sock.send` is used only if `_sock` is connected.
It also protects `socket.getsockname` against `OSError` in `_SelectorTransport`. This might happen on Windows if the socket is not connected (e.g. for UDP broadcasting).
Miro Hrončok [Tue, 7 May 2019 15:28:47 +0000 (17:28 +0200)]
bpo-30458: Disallow control chars in http URLs. (GH-12755) (GH-13154)
Disallow control chars in http URLs in urllib.urlopen. This addresses a potential security problem for applications that do not sanity check their URLs where http request headers could be injected.
Disable https related urllib tests on a build without ssl (GH-13032)
These tests require an SSL enabled build. Skip these tests when python is built without SSL to fix test failures.
Use http.client.InvalidURL instead of ValueError as the new error case's exception. (GH-13044)
bpo-35925: Skip SSL tests that fail due to weak external certs. (GH-13124)
Modern Linux distros such as Debian Buster have default OpenSSL system
configurations that reject connections to servers with weak certificates
by default. This causes our test suite run with external networking
resources enabled to skip these tests when they encounter such a failure.
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