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Gregory P. Smith using claude.ai/code 2a11d4bf53
Refactor run_pipeline() to use multiplexed I/O 
Add _communicate_streams() helper function that properly multiplexes
read/write operations to prevent pipe buffer deadlocks. The helper
uses selectors on POSIX and threads on Windows, similar to
Popen.communicate().

This fixes potential deadlocks when large amounts of data flow through
the pipeline and significantly improves performance.

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
2025-11-29 08:04:34 +00:00
..
__phello__
_pyrepl Drop three unused imports (#141875) 2025-11-23 16:33:05 +00:00
asyncio gh-141863: use bytearray.take_bytes in asyncio streams for better performance (#141864) 2025-11-24 21:06:53 +05:30
collections gh-140911: Ensure that UserString.index() and UserString.rindex() accept UserString as argument (GH-140945) 2025-11-25 15:25:46 +02:00
compression gh-132983: Split `_zstd_set_c_parameters` (#133921) 2025-05-28 14:45:08 +00:00
concurrent gh-139462: Make the ProcessPoolExecutor BrokenProcessPool exception report which child process terminated (GH-139486) 2025-11-11 22:09:58 +00:00
ctypes gh-140041: Fix import of ctypes on Android and Cygwin when ABI flags are present (#140178) 2025-10-16 05:40:39 +08:00
curses gh-133575: eliminate legacy checks in Lib/curses/__init__.py (#133576) 2025-05-07 20:28:32 +02:00
dbm gh-135386: Fix "unable to open database file" errors on readonly DB (GH-135566) 2025-08-22 14:11:59 +03:00
email gh-136702: Deprecate passing non-ascii *encoding* (str) to encodings.normalize_encoding (#140030) 2025-11-09 13:37:34 +01:00
encodings gh-141968: Use take_bytes in encodings.punycode (#141974) 2025-11-28 17:47:14 +00:00
ensurepip gh-140874: Upgrade bundled pip to 25.3 (GH-140876) 2025-11-01 10:25:19 +00:00
html gh-140875: Fix handling of unclosed charrefs before EOF in HTMLParser (GH-140904) 2025-11-19 13:55:10 +02:00
http gh-139434: Update selected RFC 2822 references to RFC 5322 (#139435) 2025-11-04 14:46:07 -05:00
idlelib Minor fixes to idle.rst and regenerate help.html (#140037) 2025-11-06 03:21:02 -05:00
importlib gh-141930: Use the regular IO stack to write .pyc files for a better error message on failure (GH-141931) 2025-11-27 19:17:59 +00:00
json GH-141686: Break cycles created by JSONEncoder.iterencode (GH-141687) 2025-11-18 09:51:18 -08:00
logging gh-138162: Fix logging.LoggerAdapter with merge_extra=True and without the extra argument (GH-140511) 2025-10-30 12:52:02 +02:00
multiprocessing gh-98552: Revert (unneeded, already done elsewhere) "flush std streams in the multiprocessing forkserver before fork (#141849)" (#141871) 2025-11-23 09:52:26 +00:00
pathlib GH-139174: Prepare pathlib.Path.info for new methods (part 2) (#140155) 2025-10-18 02:13:25 +01:00
profiling gh-138122: Refactor the CLI of profiling.sampling into subcommands (#141813) 2025-11-24 11:45:08 +00:00
pydoc_data Python 3.15.0a2 2025-11-18 16:51:17 +02:00
re gh-141968: Use take_bytes in re._compiler (#141995) 2025-11-28 17:46:10 +00:00
site-packages
sqlite3 gh-133390: sqlite3 CLI completion for tables, columns, indices, triggers, views, functions, schemata (GH-136101) 2025-10-24 08:26:36 +02:00
string GH-132661: Add `string.templatelib.convert()` (#135217) 2025-07-15 11:56:42 +02:00
sysconfig Replace obsolete platforms with more recent examples (#132455) 2025-10-10 05:38:13 +00:00
test Add subprocess.run_pipeline() for command pipe chaining 2025-11-29 08:04:33 +00:00
tkinter gh-130693: Support more options for search in tkinter.Text (GH-130848) 2025-11-17 14:42:26 +00:00
tomllib gh-133117: Enable stricter mypy checks for tomllib (#133206) 2025-05-03 16:57:09 +03:00
turtledemo gh-128062: Fix the font size and shortcut display of the turtledemo menu (#128063) 2024-12-19 15:24:47 -05:00
unittest gh-136442: Fix unittest to return exit code 5 when setUpClass raises an exception (#136487) 2025-11-14 16:59:51 -08:00
urllib gh-140691: urllib.request: Close FTP control socket if data socket can't connect (GH-140835) 2025-11-05 11:52:11 +01:00
venv gh-133951: Remove lib64->lib symlink in venv creation (#137139) 2025-10-04 14:55:17 +01:00
wsgiref gh-133810: remove http.server.CGIHTTPRequestHandler and --cgi flag (#133811) 2025-05-17 09:58:16 +02:00
xml gh-140601: Add ResourceWarning to iterparse when not closed (GH-140603) 2025-11-13 21:05:28 +02:00
xmlrpc gh-136839: Refactor simple dict.update calls (#136811) 2025-07-19 10:12:10 -07:00
zipfile gh-139700: Check consistency of the zip64 end of central directory record (GH-139702) 2025-10-07 20:15:26 +03:00
zoneinfo gh-137976: Explicitly exclude localtime from available_timezones (#138012) 2025-09-18 17:32:14 +01:00
__future__.py
__hello__.py
_aix_support.py
_android_support.py Make Android streams respect the unbuffered (-u) option (#138806) 2025-09-18 11:41:21 +01:00
_apple_support.py gh-126925: Modify how iOS test results are gathered (#127592) 2024-12-09 13:28:57 +08:00
_ast_unparse.py gh-138774: use value to ast.unparse code when str is None in ast.Interpolation (#139415) 2025-10-23 13:56:05 +00:00
_collections_abc.py gh-118803: Make ByteString deprecations louder; remove ByteString from typing.__all__ and collections.abc.__all__ (#139127) 2025-09-18 18:58:16 +00:00
_colorize.py gh-141679: Add colour to defaults in argparse help (#141680) 2025-11-23 00:26:50 +00:00
_compat_pickle.py gh-133810: remove http.server.CGIHTTPRequestHandler and --cgi flag (#133811) 2025-05-17 09:58:16 +02:00
_ios_support.py
_markupbase.py _markupbase.py: Use a permalink for the analysis of MS-Word extensions (GH-129017) 2025-02-06 11:40:43 +01:00
_opcode_metadata.py GH-139109: Support switch/case dispatch with the tracing interpreter. (GH-141703) 2025-11-18 13:31:48 +00:00
_osx_support.py
_py_abc.py
_py_warnings.py gh-140691: urllib.request: Close FTP control socket if data socket can't connect (GH-140835) 2025-11-05 11:52:11 +01:00
_pydatetime.py gh-97517: Add documentation links to datetime strftime/strptime docstrings (#138559) 2025-09-15 19:50:46 +01:00
_pydecimal.py gh-76007: Deprecate __version__ attribute in decimal (#140302) 2025-10-26 12:01:04 +01:00
_pyio.py gh-129005: Remove copies from _pyio using take_bytes (#141539) 2025-11-18 10:10:32 +01:00
_pylong.py Fix typos in comments and test code (#122846) 2024-08-11 21:16:41 -07:00
_sitebuiltins.py
_strptime.py gh-81148: Eliminate unnecessary check in _strptime when determining AM/PM (#13428) 2025-09-19 10:23:12 +00:00
_threading_local.py gh-107006: Move threading.local docstring to docs (#131840) 2025-05-05 15:00:15 +03:00
_weakrefset.py gh-89967: make WeakKeyDictionary and WeakValueDictionary thread safe (#125325) 2024-10-13 21:05:05 +05:30
abc.py
annotationlib.py gh-141489: Simplify closure/freevar iteration in annotationlib._build_closure() (#141490) 2025-11-19 18:08:08 -10:00
antigravity.py
argparse.py gh-141679: Add colour to defaults in argparse help (#141680) 2025-11-23 00:26:50 +00:00
ast.py gh-135801: Add the module parameter to compile() etc (GH-139652) 2025-11-13 13:21:32 +02:00
base64.py gh-141968: Use bytearray.take_bytes in base64 _b32encode and _b32decode (#141971) 2025-11-26 21:14:25 +05:30
bdb.py gh-136057: Allow step and next to step over for loops (#136160) 2025-11-16 13:57:07 -08:00
bisect.py
bz2.py gh-132983: Introduce compression package and move _compression module (GH-133018) 2025-04-27 14:41:30 -07:00
calendar.py gh-140212: Add html for year-month option in Calendar (#140230) 2025-10-31 17:28:53 +02:00
cmd.py gh-133363: Fix Cmd completion for lines beginning with ! (#133364) 2025-05-03 22:50:37 -04:00
code.py gh-135103: Remove an unused local variable in Lib/code.py (GH-135104) 2025-06-04 13:57:31 +09:00
codecs.py gh-52876: Implement missing parameter in codecs.StreamReaderWriter functions (#136498) 2025-07-10 17:42:14 +02:00
codeop.py gh-132449: Improve syntax error messages for keywords with typos (#132450) 2025-04-22 11:01:55 +02:00
colorsys.py
compileall.py gh-130645: Add color to stdlib argparse CLIs (gh-133380) 2025-05-05 19:46:46 +02:00
configparser.py gh-65697: Improved error msg for configparser key validation (#135527) 2025-06-15 12:13:19 -04:00
contextlib.py
contextvars.py gh-126451: Register contextvars.Context to collections.abc.Mapping (#126452) 2024-11-07 01:12:45 +03:00
copy.py gh-132657: improve deepcopy and copy scaling on free-threading (#138429) 2025-09-04 13:20:23 +05:30
copyreg.py gh-132882: Fix copying of unions with members that do not support __or__ (#132883) 2025-04-24 16:49:09 +00:00
cProfile.py gh-138122: Implement PEP 799 (#138142) 2025-08-27 17:52:50 +01:00
csv.py gh-137627: Make csv.Sniffer.sniff() delimiter detection 1.6x faster (#137628) 2025-10-23 15:28:29 +03:00
dataclasses.py gh-137530: generate an __annotate__ function for dataclasses __init__ (GH-137711) 2025-11-10 14:57:11 +01:00
datetime.py gh-123843: Remove broken links to the Zope DateTimeWiki (#123846) 2024-09-08 22:39:23 -04:00
decimal.py gh-76007: Deprecate __version__ attribute in decimal (#140302) 2025-10-26 12:01:04 +01:00
difflib.py gh-95953: Add a css class to changed lines of difflib.HtmlDiff make_table (#139226) 2025-09-22 13:19:37 +00:00
dis.py gh-130645: Add color to stdlib argparse CLIs (gh-133380) 2025-05-05 19:46:46 +02:00
doctest.py GH-90344: replace single-call io.IncrementalNewlineDecoder usage with non-incremental newline decoders (GH-30276) 2025-11-15 00:13:37 +00:00
enum.py gh-140766: [Enum] add show_flag_values and bin to enum.__all__ (GH-140765) 2025-10-30 10:32:55 -07:00
filecmp.py gh-122400: Handle ValueError in filecmp (GH-122401) 2024-07-30 08:50:30 +00:00
fileinput.py
fnmatch.py gh-133306: Use \z instead of \Z in fnmatch.translate() and glob.translate() (GH-133338) 2025-05-03 17:58:21 +03:00
fractions.py gh-87790: support thousands separators for formatting fractional part of Fraction (#132204) 2025-07-07 11:16:31 +03:00
ftplib.py
functools.py gh-140873: Add support of non-descriptor callables in functools.singledispatchmethod() (GH-140884) 2025-11-13 19:48:52 +02:00
genericpath.py gh-71189: Support all-but-last mode in os.path.realpath() (GH-117562) 2025-07-30 10:19:19 +03:00
getopt.py gh-126946: Improve error message in getopt.do_longs based on existing comment (GH-126871) 2024-11-26 10:54:02 +02:00
getpass.py gh-138514: getpass: restrict echo_char to a single ASCII character (#138591) 2025-09-16 16:21:55 +02:00
gettext.py gettext: Remove outdated "TODO" comment (#130890) 2025-03-06 23:41:03 +00:00
glob.py docs: be clearer that glob results are unordered (#140184) 2025-10-19 16:16:35 -04:00
graphlib.py gh-130914: Make graphlib.TopologicalSorter.prepare() idempotent (#131317) 2025-03-18 16:28:00 -05:00
gzip.py Remove some dead code from gzip and tarfile (#138123) 2025-08-25 16:23:47 +03:00
hashlib.py gh-136565: use SHA-256 for hashlib.__doc__ example instead of MD5 (#138157) 2025-08-26 10:38:53 +00:00
heapq.py Remove unnecessary slice in heapq.py (gh-139087) 2025-09-18 00:52:46 -05:00
hmac.py gh-136912: fix handling of OverflowError in hmac.digest (#136917) 2025-07-26 08:22:06 +00:00
imaplib.py gh-76007: Deprecate __version__ attribute in imaplib (#140299) 2025-10-20 15:20:44 +03:00
inspect.py gh-131116: Fix inspect.getdoc() to work with cached_property objects (GH-131165) 2025-11-12 10:07:21 +00:00
io.py gh-132952: Speed up startup by importing _io instead of io (#132957) 2025-04-28 08:38:56 -07:00
ipaddress.py gh-141497: Make ipaddress.IP{v4,v6}Network.hosts() always returning an iterator (GH-141547) 2025-11-17 19:29:06 +02:00
keyword.py
linecache.py gh-122255: Synchronize warnings in C and Python implementations of the warnings module (GH-122824) 2025-11-14 16:49:28 +02:00
locale.py gh-137729: Fix support for locales with @-modifiers (GH-137253) 2025-08-18 10:11:15 +03:00
lzma.py gh-132983: Introduce compression package and move _compression module (GH-133018) 2025-04-27 14:41:30 -07:00
mailbox.py gh-140808: Remove __class_getitem__ from mailbox._ProxyFile (#140838) 2025-11-02 13:56:59 -08:00
mimetypes.py gh-141018: Update .exe, .dll, .rtf and .jpg mime types in mimetypes (#141023) 2025-11-17 13:32:00 +02:00
modulefinder.py gh-135801: Add the module parameter to compile() etc (GH-139652) 2025-11-13 13:21:32 +02:00
netrc.py gh-135823: improve error message in netrc security checks (#135827) 2025-06-23 12:49:27 +02:00
ntpath.py gh-136065: Fix quadratic complexity in os.path.expandvars() (GH-134952) 2025-10-31 14:49:51 +01:00
nturl2path.py GH-125866: Deprecate nturl2path module (#131432) 2025-03-19 19:33:01 +00:00
numbers.py gh-122450: Expand documentation for `Rational and Fraction` (#136800) 2025-08-04 02:15:59 +00:00
opcode.py gh-131738: optimize builtin any/all/tuple calls with a generator expression arg (#131737) 2025-03-28 10:35:20 +00:00
operator.py gh-115808: Add `is_none and is_not_none to operator` (#115814) 2024-08-10 20:16:34 +01:00
optparse.py gh-76007: Deprecate __version__ attribute (#138675) 2025-09-29 12:03:23 +03:00
os.py gh-120057: add os.reload_environ to __all__ (#140763) 2025-10-29 21:21:26 +00:00
pdb.py gh-141781: Fix pdb.line_prefix binding (#141779) 2025-11-24 18:45:16 -08:00
pickle.py gh-76007: Deprecate __version__ attribute (#138675) 2025-09-29 12:03:23 +03:00
pickletools.py gh-131178: Add tests for pickletools command-line interface (#131287) 2025-11-22 19:17:06 +02:00
pkgutil.py gh-131152, pkgutil: Remove unused imports (#131149) 2025-03-12 15:03:36 +01:00
platform.py gh-141600: Fix musl version detection on Void Linux (GH-141602) 2025-11-22 12:17:40 -06:00
plistlib.py
poplib.py gh-130637: Add validation for numeric response data in stat() method (#130646) 2025-03-02 08:05:40 -05:00
posixpath.py gh-136065: Fix quadratic complexity in os.path.expandvars() (GH-134952) 2025-10-31 14:49:51 +01:00
pprint.py GH-90117: Check for list and tuple before MappingView in pprint (GH-135779) 2025-06-24 14:41:41 -07:00
profile.py gh-138122: Implement PEP 799 (#138142) 2025-08-27 17:52:50 +01:00
pstats.py gh-140137: Handle empty collections in profiling.sampling (#140154) 2025-10-15 14:59:12 +01:00
pty.py gh-124405: Fix NameError in openpty (#124406) 2024-09-24 20:06:39 +02:00
py_compile.py gh-130645: Add color to stdlib argparse CLIs (gh-133380) 2025-05-05 19:46:46 +02:00
pyclbr.py
pydoc.py gh-132686: Add parameters inherit_class_doc and fallback_to_class_doc for inspect.getdoc() (GH-132691) 2025-11-12 00:01:25 +02:00
queue.py Fix Queue.shutdown docs for condition to unblock a join (gh-137088) 2025-07-25 07:56:28 -06:00
quopri.py
random.py Minor edit: Move comments closer to the code they describe (gh-136477) 2025-07-09 10:23:46 -07:00
reprlib.py gh-135487: fix reprlib.Repr.repr_int when given very large integers (#135506) 2025-06-24 11:09:46 +00:00
rlcompleter.py
runpy.py gh-135801: Add the module parameter to compile() etc (GH-139652) 2025-11-13 13:21:32 +02:00
sched.py
secrets.py
selectors.py
shelve.py Drop three unused imports (#141875) 2025-11-23 16:33:05 +00:00
shlex.py gh-138804: Check type in shlex.quote (GH-138809) 2025-09-12 14:26:21 -04:00
shutil.py gh-132983: Add missing references to Zstandard in shutil docstrings (GH-136617) 2025-07-23 18:09:53 +00:00
signal.py
site.py gh-138993: Dedent credits text (#138994) 2025-10-14 11:15:17 +03:00
smtplib.py gh-139434: Update selected RFC 2822 references to RFC 5322 (#139435) 2025-11-04 14:46:07 -05:00
socket.py gh-99813: Start using SSL_sendfile when available (#99907) 2025-07-12 12:42:35 +00:00
socketserver.py gh-76007: Deprecate __version__ attribute (#138675) 2025-09-29 12:03:23 +03:00
ssl.py gh-88046: remove impossible conditional import for _ssl.RAND_egd (#139648) 2025-10-09 11:14:36 +02:00
stat.py gh-83714: Implement os.statx() function (#139178) 2025-10-15 13:44:08 +00:00
statistics.py gh-140938: Raise ValueError for infinite inputs to stdev/pstdev (GH-141531) 2025-11-14 23:25:45 +00:00
stringprep.py
struct.py
subprocess.py Refactor run_pipeline() to use multiplexed I/O 2025-11-29 08:04:34 +00:00
symtable.py gh-135801: Add the module parameter to compile() etc (GH-139652) 2025-11-13 13:21:32 +02:00
tabnanny.py gh-76007: Deprecate __version__ attribute (#138675) 2025-09-29 12:03:23 +03:00
tarfile.py gh-57911: Sanitize symlink targets in tarfile on win32 (GH-138309) 2025-09-05 16:19:47 +02:00
tempfile.py gh-136156: Allow using linkat() with TemporaryFile (#136281) 2025-07-08 18:39:47 +02:00
textwrap.py gh-139065: Fix trailing space before long word in textwrap (GH-139070) 2025-10-10 16:29:18 +03:00
this.py
threading.py gh-114827: clarify threading.Event.wait timeout behavior (#114834) 2025-10-14 11:34:53 +03:00
timeit.py gh-139374: colorize traceback when using timeit command-line interface (#139375) 2025-09-28 11:49:18 +00:00
token.py gh-131507: Add support for syntax highlighting in PyREPL (GH-133247) 2025-05-02 20:22:31 +02:00
tokenize.py gh-63161: Fix tokenize.detect_encoding() (GH-139446) 2025-10-20 20:08:47 +03:00
trace.py gh-130645: Add color to stdlib argparse CLIs (gh-133380) 2025-05-05 19:46:46 +02:00
traceback.py gh-139707: Better ModuleNotFoundError message for missing stdlib modules (GH-140219) 2025-10-21 09:12:04 +02:00
tracemalloc.py
tty.py
turtle.py gh-138772: Fix and improve documentation for turtle color functions (GH-139325) 2025-10-13 18:32:16 +03:00
types.py gh-136492: Add FrameLocalsProxyType to types (GH-136546) 2025-07-20 20:49:00 +02:00
typing.py gh-133601: Remove deprecated typing.no_type_check_decorator (#133602) 2025-10-20 21:10:44 +00:00
uuid.py gh-76760: test that uuid.uuid1() sets the version field (#139033) 2025-09-17 13:31:51 +00:00
warnings.py gh-128384: Use a context variable for warnings.catch_warnings (gh-130010) 2025-04-09 16:18:54 -07:00
wave.py gh-141968: use bytearray.take_bytes in wave._byteswap (#141973) 2025-11-26 21:15:12 +05:30
weakref.py gh-89967: make WeakKeyDictionary and WeakValueDictionary thread safe (#125325) 2024-10-13 21:05:05 +05:30
webbrowser.py gh-130645: Add color to stdlib argparse CLIs (gh-133380) 2025-05-05 19:46:46 +02:00
zipapp.py gh-130645: Add color to stdlib argparse CLIs (gh-133380) 2025-05-05 19:46:46 +02:00
zipimport.py gh-135801: Add the module parameter to compile() etc (GH-139652) 2025-11-13 13:21:32 +02:00