python / cpython

…or (GH-21474)

GH-msg373510

[bpo-32528]()/GH-13528 changed `asyncio.CancelledError` such that it no longer inherits from `concurrent.futures.CancelledError`. As this affects existing code, specifically when catching the latter instead of the former in exception handling, it should be documented in the "What's new in 3.8?" document.

Automerge-Triggered-By: @1st1
(cherry picked from commit 2a51818)

Co-authored-by: JustAnotherArchivist <JustAnotherArchivist@users.noreply.github.com>

GH-21595)

(cherry picked from commit 0dd98c2)

Co-authored-by: Alex Grönholm <alex.gronholm@nextday.fi>

(cherry picked from commit 680254a)

Co-authored-by: Henry Schreiner <HenrySchreinerIII@gmail.com>

Also one in news log.
(cherry picked from commit 592527f)

Co-authored-by: Zackery Spytz <zspytz@gmail.com>

(cherry picked from commit bf2f76e)

Co-authored-by: Steve Dower <steve.dower@python.org>

(cherry picked from commit 84761c3)

Co-authored-by: Steve Dower <steve.dower@python.org>

…21567)

(cherry picked from commit 7f03445)

Co-authored-by: Julien Palard <julien@palard.fr>

Do not call PyObject_CallMethod() with a live exception (like
KeyboardInterrupt).
(cherry picked from commit eca2549)

Co-authored-by: Zackery Spytz <zspytz@gmail.com>

Just a simple documentation fix: apply_async and map_async return a "multiprocessing.pool.AsyncResult Object", not a "result object".
(cherry picked from commit f9bf015)

Co-authored-by: Volker-Weissmann <39418860+Volker-Weissmann@users.noreply.github.com>

GH-15312)

These changes updates the doc to comprehensively mention the behaviour of gather.cancel()

Automerge-Triggered-By: @asvetlov
(cherry picked from commit d42528a)

Co-authored-by: Vinay Sharma <vinay04sharma@icloud.com>

(cherry picked from commit 7cf1cb3)

Co-authored-by: Erlend Egeberg Aasland <erlend.aasland@innova.no>

Co-authored-by: Mark Dickinson <dickinsm@gmail.com>
(cherry picked from commit 10e4664)

Co-authored-by: Srinivas Reddy Thatiparthy (శ్రీనివాస్  రెడ్డి తాటిపర్తి) <thatiparthysreenivas@gmail.com>

Walk down the MRO backwards to find the type that originally defined the final `tp_setattro`, then make sure we are not jumping over intermediate C-level bases with the Python-level call.

Automerge-Triggered-By: @gvanrossum
(cherry picked from commit c53b310)

Co-authored-by: scoder <stefan_ml@behnel.de>

reject control chars in http method in http.client.putrequest to prevent http header injection
(cherry picked from commit 8ca8a2e)

Co-authored-by: AMIR <31338382+amiremohamadi@users.noreply.github.com>

…ct (GH-21525)

(cherry picked from commit 9b01c59)

Co-authored-by: Jordan Speicher <uSpike@users.noreply.github.com>

…ainer for '… (GH-20964) (GH-21527)

(cherry picked from commit 164b04c)

Co-authored-by: Steve Dower <steve.dower@python.org>

Fix regression released in 3.9.0b4 and 3.8.4.
(cherry picked from commit 38d3864)

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>

(cherry picked from commit 0275e04)

Co-authored-by: Eric V. Smith <ericvsmith@users.noreply.github.com>

GCC says
```
../cpython/Parser/string_parser.c: In function ‘fstring_find_expr’:
../cpython/Parser/string_parser.c:404:93: warning: ‘cols’ may be used uninitialized in this function [-Wmaybe-uninitialized]
  404 |     p2->starting_col_offset = p->tok->first_lineno == p->tok->lineno ? t->col_offset + cols : cols;
      |                               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
../cpython/Parser/string_parser.c:384:16: note: ‘cols’ was declared here
  384 |     int lines, cols;
      |                ^~~~
../cpython/Parser/string_parser.c:403:45: warning: ‘lines’ may be used uninitialized in this function [-Wmaybe-uninitialized]
  403 |     p2->starting_lineno = t->lineno + lines - 1;
      |                           ~~~~~~~~~~~~~~~~~~^~~
../cpython/Parser/string_parser.c:384:9: note: ‘lines’ was declared here
  384 |     int lines, cols;
      |         ^~~~~
```

and, indeed, if `PyBytes_AsString` somehow fails, lines & cols will not be initialized.
(cherry picked from commit 2ad7e9c)

Co-authored-by: Benjamin Peterson <benjamin@python.org>

This should also fix the syntax highlighting for these code blocks

Automerge-Triggered-By: @csabella
(cherry picked from commit 5e5c0f9)

Co-authored-by: Christopher Yeh <chrisyeh96@users.noreply.github.com>

(cherry picked from commit 936a660)

Co-authored-by: Steve Dower <steve.dower@python.org>

…all (GH-19686)

(cherry picked from commit af4eda4)

Co-authored-by: Zackery Spytz <zspytz@gmail.com>

(cherry picked from commit 0108b2a)

Co-authored-by: Benjamin Peterson <benjamin@python.org>

(cherry picked from commit ea62a4b)

Co-authored-by: Benjamin Peterson <benjamin@python.org>

Move definition of UNUSED from modified headers of libmpdec to
_decimal.c itself. This makes the vendored source closer to the
standalone library and fixes build with --with-system-libmpdec.

Tested to build fine with either system libmpdec or the vendored one.
(cherry picked from commit 015efdb)

Co-authored-by: Felix Yan <felixonmars@archlinux.org>

…GH-21482)

Avoid infinite loop when reading specially crafted TAR files using the tarfile module
(CVE-2019-20907).
(cherry picked from commit 5a8d121)


Co-authored-by: Rishi <rishi_devan@mail.com>

Automerge-Triggered-By: @encukou

The phrase "At any time during execution," was repeated twice.

Automerge-Triggered-By: @Mariatta
(cherry picked from commit 4f28f75)

Co-authored-by: Paul McMillan <paul@mcmillan.ws>

Automerge-Triggered-By: @tiran
(cherry picked from commit 4f309ab)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

(cherry picked from commit 344dce3)

Co-authored-by: Nima Dini <nima.dini@gmail.com>

(cherry picked from commit 6fc732a)

Co-authored-by: marload <rladhkstn8@gmail.com>

…bject (GH-21240)

The issue is triggered by the bytearray() + bytearray() operation.

Detected by GCC 10 static analysis tool.
(cherry picked from commit 61fc23c)

Co-authored-by: stratakis <cstratak@redhat.com>

Keywords are present in the main module tab completion lists generated by rlcompleter, which is used by REPLs on *nix. Add all keywords to IDLE's main module name list except those already added from builtins (True, False, and None) . This list may also be used by Show Completions on the Edit menu, and its hot key.

Rewrite Completions doc.

Co-authored-by: Cheryl Sabella <cheryl.sabella@gmail.com>
(cherry picked from commit bce2eb4)

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>