Miss Islington (bot) 12471131a7 [3.13] gh-87512: Fix subprocess using timeout= on Windows blocking with a large input= (GH-142058) (#142069) ... gh-87512: Fix `subprocess` using `timeout=` on Windows blocking with a large `input=` (GH-142058) On Windows, Popen._communicate() previously wrote to stdin synchronously, which could block indefinitely if the subprocess didn't consume input= quickly and the pipe buffer filled up. The timeout= parameter was only checked when joining the reader threads, not during the stdin write. This change moves the Windows stdin writing to a background thread (similar to how stdout/stderr are read in threads), allowing the timeout to be properly enforced. If timeout expires, TimeoutExpired is raised promptly and the writer thread continues in the background. Subsequent calls to communicate() will join the existing writer thread. Adds test_communicate_timeout_large_input to verify that TimeoutExpired is raised promptly when communicate() is called with large input and a timeout, even when the subprocess doesn't consume stdin quickly. This test already passed on POSIX (where select() is used) but failed on Windows where the stdin write blocks without checking the timeout. (cherry picked from commit 5b1862bdd8) Co-authored-by: Gregory P. Smith <68491+gpshead@users.noreply.github.com> Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>		2025-11-29 07:22:46 +00:00
..
__phello__
_pyrepl	[3.13] gh-139246: zero-width word paste can be wrong in default repl (GH-139254) (GH-141166)	2025-11-07 13:51:03 +01:00
asyncio	[3.13] gh-103847: fix cancellation safety of asyncio.create_subprocess_exec (GH-140805) (#141447)	2025-11-13 17:05:01 +05:30
collections	[3.13] gh-140911: Ensure that UserString.index() and UserString.rindex() accept UserString as argument (GH-140945) (GH-141945)	2025-11-25 13:50:30 +00:00
concurrent	[3.13] gh-132969: Fix error/hang when shutdown(wait=False) and task exited abnormally (GH-133222) (GH-135343)	2025-06-16 14:08:03 +02:00
ctypes	[3.13] gh-140041: Fix import of ctypes on Android and Cygwin when ABI flags are present (GH-140178) (#140181)	2025-10-15 22:03:25 +00:00
curses
dbm	[3.13] gh-135386: Fix "unable to open database file" errors on readonly DB (GH-135566) (GH-138057)	2025-08-22 11:35:21 +00:00
email	[3.13] gh-139434: Update selected RFC 2822 references to RFC 5322 (GH-139435) (#141024)	2025-11-04 16:22:31 -05:00
encodings	[3.13] gh-135069: Fix exception message in encodings.idna module (GH-135071) (#136236)	2025-07-03 10:31:43 +00:00
ensurepip	[3.13] gh-140874: Upgrade bundled pip to 25.3 (GH-140876) (gh-140880)	2025-11-01 12:42:15 +00:00
html	[3.13] gh-140875: Fix handling of unclosed charrefs before EOF in HTMLParser (GH-140904) (GH-141746)	2025-11-19 12:17:54 +00:00
http	[3.13] gh-139434: Update selected RFC 2822 references to RFC 5322 (GH-139435) (#141024)	2025-11-04 16:22:31 -05:00
idlelib	[3.13] Minor fixes to idle.rst and regenerate help.html (GH-140037) (#141122)	2025-11-06 12:11:50 +00:00
importlib	[3.13] gh-140633: AppleFrameworkLoader: Ignore AttributeError when setting __file__ (GH-140635) (GH-140659)	2025-10-27 14:08:09 +01:00
json	[3.13] gh-140793: Improve documentatation and tests for the ensure_ascii option in the json module (GH-140906) (GH-141228)	2025-11-08 10:30:15 +00:00
logging	[3.13] gh-138162: Fix logging.LoggerAdapter with merge_extra=True and without the extra argument (GH-140511) (GH-140785)	2025-10-30 11:31:54 +00:00
multiprocessing	[3.13] gh-98896: resource_tracker: use json&base64 to allow arbitrary shared memory names (GH-138473) (GH-142014)	2025-11-28 11:57:51 +01:00
pathlib
pydoc_data	Python 3.13.9	2025-10-14 15:52:31 +02:00
re	[3.13] gh-140797: Forbid capturing groups in re.Scanner lexicon patterns (GH-140944) (GH-140983)	2025-11-04 11:17:29 +00:00
site-packages
sqlite3	[3.13] gh-133439: Fix dot commands with trailing spaces are mistaken for multi-line sqlite statements in the sqlite3 command-line interface (GH-133440) (GH-133765)	2025-06-13 20:40:24 +03:00
sysconfig	[3.13] Synced docs and docstring for sysconfig.get_platform (GH-135530) (#138975)	2025-09-17 13:22:36 +00:00
test	[3.13] gh-87512: Fix subprocess using timeout= on Windows blocking with a large input= (GH-142058) (#142069)	2025-11-29 07:22:46 +00:00
tkinter	[3.13] gh-126008: Improve docstrings for Tkinter cget and configure methods (GH-133303) (GH-137661)	2025-08-12 05:17:24 +00:00
tomllib	[3.13] gh-133117: Enable stricter mypy checks for tomllib (GH-133206) (#133343)	2025-05-03 14:20:34 +00:00
turtledemo	[3.13] gh-128062: Fix the font size and shortcut display of the turtledemo menu (GH-128063) (#128101)	2024-12-19 20:47:24 +00:00
unittest	[3.13] gh-136442: Fix unittest to return exit code 5 when setUpClass raises an exception (GH-136487) (#141577)	2025-11-15 01:23:03 +00:00
urllib	[3.13] gh-140691: urllib.request: Close FTP control socket if data socket can't connect (GH-140835) (GH-141657)	2025-11-18 13:34:40 +01:00
venv	[3.13] gh-124651: Quote template strings in venv activation scripts (GH-124712) (GH-125813)	2024-10-22 16:49:20 +01:00
wsgiref
xml	[3.13] gh-135640: Adds more type checking to ElementTree (GH-135643) (GH-136226)	2025-07-03 08:12:21 +00:00
xmlrpc
zipfile	[3.13] gh-139700: Check consistency of the zip64 end of central directory record (GH-139702) (GH-139708)	2025-10-07 17:55:44 +00:00
zoneinfo	[3.13] GH-137841: Open tzdata/zones file with UTF-8 encoding (GH-137872) (#141608)	2025-11-20 18:23:26 +02:00
__future__.py
__hello__.py
_aix_support.py
_android_support.py	[3.13] Make Android streams respect the unbuffered (-u) option (GH-138806) (#139110)	2025-09-18 12:45:03 +01:00
_apple_support.py	[3.13] gh-126925: Modify how iOS test results are gathered (GH-127592) (#127754)	2024-12-09 14:39:11 +08:00
_collections_abc.py	[3.13] gh-118803: Fixup a few references in the 3.13 branch to the intended removal date for ByteString (#139171)	2025-09-19 18:51:39 +01:00
_colorize.py	[3.13] gh-141570: can_colorize: Expect fileno() to raise OSError, as documented (#141716) (#141748)	2025-11-19 14:28:31 +00:00
_compat_pickle.py
_compression.py
_ios_support.py
_markupbase.py
_opcode_metadata.py
_osx_support.py
_py_abc.py
_pydatetime.py	[3.13] gh-135956: Remove duplicate word in _pydatetime docstring (GH-135957) (#135963)	2025-06-26 04:08:17 +00:00
_pydecimal.py	[3.13] gh-102431: Clarify constraints on operands of Decimal logical operations (GH-102836) (#140106)	2025-10-14 15:45:02 +02:00
_pyio.py	[3.13] gh-140607: Validate returned byte count in RawIOBase.read (GH-140611) (#140730)	2025-10-29 13:31:57 +01:00
_pylong.py
_sitebuiltins.py
_strptime.py	[3.13] gh-136028: Fix parsing month names containing "İ" (U+0130) in strptime() (GH-136029) (GH-136038)	2025-06-27 14:10:51 +00:00
_threading_local.py	[3.13] gh-107006: Move threading.local docstring to docs (GH-131840) (#133432)	2025-05-05 16:18:00 +03:00
_weakrefset.py
abc.py
antigravity.py
argparse.py	[3.13] gh-134109: Fix showing comments in pydoc output for argparse (GH-134110) (GH-134113)	2025-05-16 20:52:42 +00:00
ast.py	[3.13] gh-134718: Fix ast.dump() for empty non-default values (GH-134926) (GH-134936)	2025-05-30 15:48:48 +00:00
base64.py	[3.13] gh-138775: fix handle python -m base64 stdin correct with EOF signal (GH-138776) (#141433)	2025-11-12 00:10:07 +00:00
bdb.py	[3.13] gh-136057: Allow step and next to step over for loops (GH-136160) (#141641)	2025-11-16 22:23:03 +00:00
bisect.py
bz2.py
calendar.py	[3.13] gh-126476: Raise IllegalMonthError for calendar.formatmonth() when the input month is not correct (GH-126484) (GH-126879)	2024-11-15 15:20:25 -08:00
cmd.py
code.py	[3.13] gh-125666: Avoid PyREPL exiting when a null byte is in input (GH-125732) (#126023)	2024-12-02 15:04:51 +01:00
codecs.py	[3.13] gh-52876: Implement missing parameter in codecs.StreamReaderWriter functions (GH-136498) (#136515)	2025-07-10 18:06:34 +02:00
codeop.py
colorsys.py
compileall.py
configparser.py	[3.13] gh-130941: Fix configparser parsing values with allow_no_value and interpolation set (GH-130949) (#132588)	2025-04-16 14:19:46 +02:00
contextlib.py
contextvars.py	[3.13] gh-126451: Revert backports of ABC registrations for contextvars.Context and multiprocessing proxies (#126734)	2024-11-12 12:29:13 +00:00
copy.py
copyreg.py
cProfile.py
csv.py
dataclasses.py	[3.13] gh-123935: Fix typo in _get_slots in dataclasses.py (GH-123941) (#123991)	2024-12-03 17:17:25 +01:00
datetime.py
decimal.py
difflib.py	[3.13] gh-128051: Fix tests if sys.float_repr_style is 'legacy' (#135908) (#136026)	2025-06-30 11:40:06 +02:00
dis.py	[3.13] gh-127637: add tests for dis command-line interface (#127759) (#127781)	2024-12-10 12:32:32 +00:00
doctest.py	[3.13] gh-136914: Fix support of cached functions and properties in DocTest's lineno computation (GH-136930) (GH-137615)	2025-08-10 20:05:28 +00:00
enum.py	[3.13] gh-136764: improve comment in enum.verify.__call__ (GH-136774) (GH-136842)	2025-07-19 12:01:42 -07:00
filecmp.py
fileinput.py
fnmatch.py
fractions.py	[3.13] gh-130664: Treat '0' fill character with align '=' as zero-padding for Fraction's (GH-131067) (GH-136242)	2025-07-03 11:20:49 +00:00
ftplib.py
functools.py	[3.13] gh-140873: Fix the singledispatchmethod documentation (GH-141523) (GH-141710)	2025-11-18 11:38:38 +00:00
genericpath.py	[3.13] gh-135034: Normalize link targets in tarfile, add os.path.realpath(strict='allow_missing') (GH-135037) (GH-135064)	2025-06-03 15:59:54 +02:00
getopt.py
getpass.py
gettext.py
glob.py	[3.13] docs: be clearer that glob results are unordered (GH-140184) (#140340)	2025-10-20 07:32:05 +03:00
graphlib.py	[3.13] gh-129892: Doc: Remove unnecessary role directive in graphlib.py (GH-129896) (#129904)	2025-02-09 15:47:10 +00:00
gzip.py	[3.13] gh-131492, gh-131461: handle exceptions in GzipFile constructor while owning resources (GH-131462) (#131518)	2025-03-21 11:20:52 +01:00
hashlib.py	[3.13] gh-134696: align OpenSSL and HACL*-based hash functions constructors AC signatures (GH-134713) (#134962)	2025-06-01 10:27:02 +02:00
heapq.py
hmac.py
imaplib.py	[3.13] gh-78319: Fix implementation of IMAP APPEND UTF8 (GH-9436) (GH-139407)	2025-09-29 06:25:51 +00:00
inspect.py	[3.13] gh-139783: Fix inspect.getsourcelines() for the case when a decorator is followed by a comment or an empty line (GH-139836) (GH-139890)	2025-10-14 15:47:20 +02:00
io.py
ipaddress.py	[3.13] gh-141497: Make ipaddress.IP{v4,v6}Network.hosts() always returning an iterator (GH-141547) (GH-141695)	2025-11-18 11:43:15 +02:00
keyword.py
linecache.py	[3.13] gh-117174: Fix reference leak and gdb tests (GH-131095) (#131120)	2025-03-11 23:43:07 +00:00
locale.py	[3.13] gh-133967: Do not normalize locale name 'C.UTF-8' to 'en_US.UTF-8' (GH-135347) (GH-135350)	2025-06-11 12:43:38 +03:00
lzma.py
mailbox.py
mimetypes.py	gh-128703: Fix mimetypes.guess_type for empty Content-Type in registry (GH-128854)	2025-02-17 15:36:49 +00:00
modulefinder.py
netrc.py	[3.13] gh-135815: skip netrc security checks if os.getuid is missing (GH-135816) (#135826)	2025-06-22 20:12:20 +00:00
ntpath.py	[3.13] gh-136065: Fix quadratic complexity in os.path.expandvars() (GH-134952) (GH-140845)	2025-10-31 17:58:09 +01:00
nturl2path.py	[3.13] GH-127078: url2pathname(): handle extra slash before UNC drive in URL path (GH-127132) (#127135)	2024-11-22 04:37:30 +00:00
numbers.py	[3.13] gh-122450: Expand documentation for `Rational and Fraction` (#136800) (#137367)	2025-08-05 14:54:31 +01:00
opcode.py
operator.py
optparse.py
os.py	[3.13] gh-136087: Remove \r from documented os.linesep values (GH-136088) (#136112)	2025-06-30 10:44:38 +03:00
pdb.py	[3.13] gh-139289: Lazy import rlcompleter to fix the refleak (GH-139305) (#139357)	2025-09-26 22:50:33 +08:00
pickle.py	[3.13] gh-126489: Do not call persistent_id() for a persistent id in Python pickle (GH-126490) (GH-126514)	2024-11-06 22:54:48 +02:00
pickletools.py	[3.13] gh-139646: fix typo in pickletools error message (GH-139647) (GH-139650)	2025-10-07 20:19:24 +02:00
pkgutil.py
platform.py	gh-127732: Add Windows Server 2025 detection to platform module (GH-127733)	2024-12-09 12:50:34 +00:00
plistlib.py
poplib.py	[3.13] gh-130637: Add validation for numeric response data in stat() method (GH-130646) (#130763)	2025-03-02 20:28:56 +00:00
posixpath.py	[3.13] gh-136065: Fix quadratic complexity in os.path.expandvars() (GH-134952) (GH-140845)	2025-10-31 17:58:09 +01:00
pprint.py
profile.py
pstats.py
pty.py
py_compile.py
pyclbr.py
pydoc.py	[3.13] gh-139076: Fix regression in pydoc not showing extension functions (GH-139077) (GH-139161)	2025-09-19 16:38:20 +03:00
queue.py	[3.13] Fix Queue.shutdown docs for condition to unblock a join (gh-137088) (gh-137102)	2025-07-25 08:48:28 -06:00
quopri.py
random.py	[3.13] gh-130285: Fix handling of zero or empty counts in random.sample() (gh-130291) (gh-130416)	2025-02-21 17:56:51 +00:00
reprlib.py	[3.13] gh-135487: fix reprlib.Repr.repr_int when given very large integers (GH-135506) (#135886)	2025-06-24 12:00:14 +00:00
rlcompleter.py
runpy.py
sched.py
secrets.py
selectors.py
shelve.py
shlex.py
shutil.py	[3.13] gh-127001: Fix PATHEXT issues in shutil.which() on Windows (GH-127035) (GH-127156)	2024-11-22 16:18:44 +00:00
signal.py
site.py	[3.13] gh-138993: Dedent credits text (GH-138994) (#140087)	2025-10-15 14:05:53 +03:00
smtplib.py	[3.13] gh-139434: Update selected RFC 2822 references to RFC 5322 (GH-139435) (#141024)	2025-11-04 16:22:31 -05:00
socket.py	[3.13] gh-128916: Do not set SO_REUSEPORT on non-AF_INET* sockets (GH-128933) (#128969)	2025-01-18 03:45:42 +00:00
socketserver.py	[3.13] gh-128916: Do not set SO_REUSEPORT on non-AF_INET* sockets (GH-128933) (#128969)	2025-01-18 03:45:42 +00:00
sre_compile.py
sre_constants.py
sre_parse.py
ssl.py
stat.py
statistics.py	[3.13] gh-140938: Raise ValueError for infinite inputs to stdev/pstdev (GH-141531) (#141584)	2025-11-15 04:45:28 +00:00
string.py
stringprep.py
struct.py
subprocess.py	[3.13] gh-87512: Fix subprocess using timeout= on Windows blocking with a large input= (GH-142058) (#142069)	2025-11-29 07:22:46 +00:00
symtable.py
tabnanny.py
tarfile.py	[3.13] gh-75989: TarFile.extractall and TarFile.extract now overwrite symlinks when extracting hardlinks (GH-137316) (GH-139771)	2025-10-09 12:54:14 +02:00
tempfile.py	[3.13] gh-132124: improve safety nets for creating AF_UNIX socket files (GH-134085) (#134448)	2025-08-04 07:38:49 -07:00
textwrap.py	[3.13] gh-139065: Fix trailing space before long word in textwrap (GH-139070) (GH-139903)	2025-10-10 13:51:41 +00:00
this.py
threading.py	[3.13] gh-114827: clarify threading.Event.wait timeout behavior (GH-114834) (#140099)	2025-10-14 14:13:31 +00:00
timeit.py
token.py	[3.13] gh-127303: Add docs for token.EXACT_TOKEN_TYPES (GH-127304) (#127390)	2024-11-30 08:13:13 +00:00
tokenize.py	[3.13] gh-125553: Fix backslash continuation in untokenize (GH-126010) (#129153)	2025-01-21 21:04:55 +00:00
trace.py
traceback.py	[3.13] gh-137576: Fix for Basic REPL showing incorrect code in tracebacks with PYTHONSTARTUP (GH-137625) (#137778)	2025-08-15 12:10:39 +03:00
tracemalloc.py
tty.py
turtle.py	[3.13] gh-138772: Fix and improve documentation for turtle color functions (GH-139325) (GH-140048)	2025-10-13 15:56:31 +00:00
types.py
typing.py	[3.13] gh-138859: Account for ParamSpec defaults that are not lists … (GH-138868) (#140208)	2025-10-16 13:26:24 -07:00
uuid.py	[3.13] gh-135244: generate UUID random Node ID with a CSPRNG as per RFC 9562, §6.10.3 (GH-135226) (#137408)	2025-08-05 09:01:07 +00:00
warnings.py	[3.13] gh-138010: Fix __init_subclass__ forwarding by warnings.deprecated (GH-138210) (#138564)	2025-09-05 14:21:19 -07:00
wave.py	[3.13] gh-136523: Fix wave.Wave_write emitting an unraisable when open raises (GH-136529) (GH-136607)	2025-07-13 06:13:01 +00:00
weakref.py
webbrowser.py
zipapp.py	[3.13] gh-130379: Fix incorrect zipapp logic to avoid including the target in itself (gh-130509) (gh-130791)	2025-03-03 15:20:05 +00:00
zipimport.py