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cpython/Lib
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Cody Maloney 35d8ac7cd7
GH-120754: Disable buffering in Path.read_bytes (#122111) 
`Path.read_bytes()` is used to read a whole file. buffering /
BufferedIO is focused around making small, possibly interleaved,
read/write efficient which doesn't add value in this case.

On my Mac, running the benchmark:

```python
import pyperf
from pathlib import Path

def read_all(all_paths):
    for p in all_paths:
        p.read_bytes()

def read_file(path_obj):
    path_obj.read_bytes()

all_rst = list(Path("Doc").glob("**/*.rst"))
all_py = list(Path(".").glob("**/*.py"))
assert all_rst, "Should have found rst files"
assert all_py, "Should have found python source files"

runner = pyperf.Runner()
runner.bench_func("read_file_small", read_file, Path("Doc/howto/clinic.rst"))
runner.bench_func("read_file_large", read_file, Path("Doc/c-api/typeobj.rst"))
```

before:
```python
.....................
read_file_small: Mean +- std dev: 6.80 us +- 0.07 us
.....................
read_file_large: Mean +- std dev: 10.8 us +- 0.2 us
````

after:
```python
.....................
read_file_small: Mean +- std dev: 5.67 us +- 0.05 us
.....................
read_file_large: Mean +- std dev: 9.77 us +- 0.52 us
```
2024-08-16 13:52:41 -07:00
..
__phello__
_pyrepl Fix typos in comments and test code (#122846) 2024-08-11 21:16:41 -07:00
asyncio gh-122858: Deprecate asyncio.iscoroutinefunction (#122875) 2024-08-11 16:35:51 +00:00
collections gh-120417: Fix "imported but unused" linter warnings (#120461) 2024-06-14 20:39:50 +02:00
concurrent gh-120417: Add #noqa to used imports in the stdlib (#120421) 2024-06-13 16:14:50 +02:00
ctypes gh-105733: Soft-deprecate ctypes.ARRAY, rather than hard-deprecating it. (GH-122281) 2024-07-30 09:37:58 +02:00
curses gh-120417: Add #noqa to used imports in the stdlib (#120421) 2024-06-13 16:14:50 +02:00
dbm gh-120417: Remove unused imports in the stdlib (#120420) 2024-06-12 20:56:42 +02:00
email gh-121650: Encode newlines in headers, and verify headers are sound (GH-122233) 2024-07-31 00:19:48 +02:00
encodings gh-85287: Change codecs to raise precise UnicodeEncodeError and UnicodeDecodeError (#113674) 2024-03-17 04:58:42 +00:00
ensurepip gh-122744: Bump bundled pip to 24.2 (#122745) 2024-08-06 18:38:33 +00:00
html
http gh-121905: Consistently use "floating-point" instead of "floating point" (GH-121907) 2024-07-19 08:06:02 +00:00
idlelib gh-120104: IDLE: Fix padding in config and search dialogs (#120107) 2024-08-06 12:45:53 -04:00
importlib gh-116608: Apply style and compatibility changes from importlib_metadata. (#123028) 2024-08-15 15:32:05 -04:00
json gh-122873: Allow "python -m json" to work (#122884) 2024-08-13 17:09:38 +01:00
logging gh-105376: Restore deprecated logging warn() method (#122775) 2024-08-09 15:13:24 +02:00
multiprocessing gh-121381 Remove subprocess._USE_VFORK escape hatch (#121383) 2024-07-30 18:39:54 -07:00
pathlib GH-120754: Disable buffering in Path.read_bytes (#122111) 2024-08-16 13:52:41 -07:00
pydoc_data Python 3.13.0b1 2024-05-08 11:21:00 +02:00
re Remove dead code in the RE parser (GH-122796) 2024-08-07 19:44:18 +00:00
site-packages
sqlite3 gh-120417: Add #noqa to used imports in the stdlib (#120421) 2024-06-13 16:14:50 +02:00
sysconfig gh-120831: Correct default minimum iOS version. (#122339) 2024-07-27 01:53:44 +00:00
test GH-120754: Disable buffering in Path.read_bytes (#122111) 2024-08-16 13:52:41 -07:00
tkinter gh-121905: Consistently use "floating-point" instead of "floating point" (GH-121907) 2024-07-19 08:06:02 +00:00
tomllib
turtledemo gh-120633: Move scrollbar and remove tear-off menus in turtledemo (#120634) 2024-06-19 02:20:54 -04:00
unittest gh-122858: Deprecate asyncio.iscoroutinefunction (#122875) 2024-08-11 16:35:51 +00:00
urllib gh-120417: Add #noqa to used imports in the stdlib (#120421) 2024-06-13 16:14:50 +02:00
venv gh-90329: Add _winapi.GetLongPathName and GetShortPathName and use in venv to reduce warnings (GH-117817) 2024-04-15 15:36:06 +01:00
wsgiref Remove almost all unpaired backticks in docstrings (#119231) 2024-05-22 12:35:18 -04:00
xml Fix typos in comments and test code (#122846) 2024-08-11 21:16:41 -07:00
xmlrpc gh-120485: Add an override of allow_reuse_port on classes subclassing socketserver.TCPServer (GH-120488) 2024-06-16 13:15:03 +01:00
zipfile gh-122903: Honor directories in zipfile.Path.glob. (#122908) 2024-08-11 20:33:33 -04:00
zoneinfo
__future__.py
__hello__.py
_aix_support.py
_android_support.py gh-116622: Add Android test script (#121595) 2024-08-16 13:00:29 +08:00
_collections_abc.py GH-120097: Make FrameLocalsProxy a mapping (#120101) 2024-06-19 17:54:13 +01:00
_colorize.py gh-117225: Move colorize functionality to own internal module (#118283) 2024-05-01 12:27:06 -06:00
_compat_pickle.py
_compression.py
_ios_support.py gh-119253: use ImportError in _ios_support (#119254) 2024-05-20 16:39:30 -04:00
_markupbase.py
_opcode_metadata.py GH-118093: Specialize CALL_KW (GH-123006) 2024-08-16 17:11:24 +01:00
_osx_support.py
_py_abc.py
_pydatetime.py gh-120713: Normalize year with century for datetime.strftime (GH-120820) 2024-06-29 09:32:42 +03:00
_pydecimal.py gh-121905: Consistently use "floating-point" instead of "floating point" (GH-121907) 2024-07-19 08:06:02 +00:00
_pyio.py gh-120754: Reduce system calls in full-file FileIO.readall() case (#120755) 2024-07-04 09:17:00 +02:00
_pylong.py Fix typos in comments and test code (#122846) 2024-08-11 21:16:41 -07:00
_sitebuiltins.py
_strptime.py GH-70647: Deprecate strptime day of month parsing without a year present to avoid leap-year bugs (GH-117107) 2024-04-03 14:19:49 +02:00
_threading_local.py
_weakrefset.py
abc.py
annotationlib.py gh-119180: annotationlib: Fix __all__, formatting (#122365) 2024-08-11 23:44:51 +00:00
antigravity.py
argparse.py gh-121151: argparse: Fix wrapping of long usage text of arguments inside a mutually exclusive groups (GH-121159) 2024-08-07 15:20:38 +02:00
ast.py gh-121210: handle nodes with missing attributes/fields in ast.compare (#121211) 2024-07-02 16:23:17 +05:30
base64.py gh-118673: Remove shebang and executable bits from stdlib modules. (#119658) 2024-05-29 12:43:19 -04:00
bdb.py gh-121450: Make inline breakpoints use the most recent pdb instance (#121451) 2024-07-10 19:54:27 -07:00
bisect.py
bz2.py gh-115961: Add name and mode attributes for compressed file-like objects (GH-116036) 2024-04-21 11:46:39 +03:00
calendar.py gh-120567: Clarify weekday return in calendar.monthrange docstring (#120570) 2024-06-16 16:43:57 -04:00
cmd.py Remove almost all unpaired backticks in docstrings (#119231) 2024-05-22 12:35:18 -04:00
code.py gh-122478: Remove internal frames from tracebacks in REPL (GH-122528) 2024-08-07 23:20:57 +03:00
codecs.py gh-121785: Remove unused code from codecs.py (GH-121787) 2024-07-15 17:18:37 +00:00
codeop.py gh-119521: Rename IncompleteInputError to _IncompleteInputError and remove from public API/ABI (GH-119680) 2024-06-24 14:08:12 +02:00
colorsys.py gh-121905: Consistently use "floating-point" instead of "floating point" (GH-121907) 2024-07-19 08:06:02 +00:00
compileall.py gh-117205: Increase chunksize when compiling pyc in parallel (#117206) 2024-04-03 15:24:24 -07:00
configparser.py Remove almost all unpaired backticks in docstrings (#119231) 2024-05-22 12:35:18 -04:00
contextlib.py
contextvars.py
copy.py gh-121300: Add replace to copy.__all__ (#121302) 2024-07-03 20:33:56 +05:30
copyreg.py
cProfile.py gh-118673: Remove shebang and executable bits from stdlib modules. (#119658) 2024-05-29 12:43:19 -04:00
csv.py gh-121905: Consistently use "floating-point" instead of "floating point" (GH-121907) 2024-07-19 08:06:02 +00:00
dataclasses.py Fix typos in comments and test code (#122846) 2024-08-11 21:16:41 -07:00
datetime.py gh-120417: Add #noqa to used imports in the stdlib (#120421) 2024-06-13 16:14:50 +02:00
decimal.py gh-121905: Consistently use "floating-point" instead of "floating point" (GH-121907) 2024-07-19 08:06:02 +00:00
difflib.py gh-115801: Only allow sequence of strings as input for difflib.unified_diff (GH-118333) 2024-06-10 14:06:18 +03:00
dis.py gh-120780: Show attribute name for LOAD_SPECIAL in dis output (#120781) 2024-06-20 07:07:24 -07:00
doctest.py Remove almost all unpaired backticks in docstrings (#119231) 2024-05-22 12:35:18 -04:00
enum.py Fix typos in comments and docstring (#122720) 2024-08-07 07:39:16 +01:00
filecmp.py gh-122400: Handle ValueError in filecmp (GH-122401) 2024-07-30 08:50:30 +00:00
fileinput.py
fnmatch.py
fractions.py gh-82017: Support as_integer_ratio() in the Fraction constructor (GH-120271) 2024-07-19 08:06:53 +03:00
ftplib.py Remove almost all unpaired backticks in docstrings (#119231) 2024-05-22 12:35:18 -04:00
functools.py gh-119180: Add annotationlib module to support PEP 649 (#119891) 2024-07-23 21:16:50 +00:00
genericpath.py gh-117114: Make os.path.isdevdrive available on all platforms (GH-117115) 2024-03-25 22:55:11 +00:00
getopt.py Remove almost all unpaired backticks in docstrings (#119231) 2024-05-22 12:35:18 -04:00
getpass.py
gettext.py Fix old-style print statement in gettext comments (#122939) 2024-08-12 18:15:57 +03:00
glob.py GH-116380: Move pathlib-specific code from glob to pathlib._abc. (#120011) 2024-06-07 17:59:34 +01:00
graphlib.py
gzip.py gh-112346: Always set OS byte to 255, simpler gzip.compress function. (GH-120486) 2024-06-15 18:46:39 +00:00
hashlib.py gh-120417: Add #noqa to used imports in the stdlib (#120421) 2024-06-13 16:14:50 +02:00
heapq.py gh-119721: Integrate documentation fixes into heapq module docstring. (gh-119722) 2024-05-29 11:39:34 -05:00
hmac.py
imaplib.py Remove almost all unpaired backticks in docstrings (#119231) 2024-05-22 12:35:18 -04:00
inspect.py gh-119180: annotationlib: Fix __all__, formatting (#122365) 2024-08-11 23:44:51 +00:00
io.py
ipaddress.py gh-120128: fix description of argument to ipaddress.collapse_addresses() (#120131) 2024-06-06 00:52:40 +03:00
keyword.py
linecache.py gh-122170: Handle ValueError raised by os.stat() in linecache (GH-122176) 2024-07-27 10:10:42 +00:00
locale.py gh-91565: Replace bugs.python.org links with Devguide/GitHub ones (GH-91568) 2024-04-01 13:02:07 +00:00
lzma.py gh-120417: Add #noqa to used imports in the stdlib (#120421) 2024-06-13 16:14:50 +02:00
mailbox.py gh-117467: Add preserving of mailbox owner on flush (GH-117510) 2024-04-04 13:32:53 +03:00
mimetypes.py Fix typos in comments and docstring (#122720) 2024-08-07 07:39:16 +01:00
modulefinder.py gh-114099 - Add iOS framework loading machinery. (GH-116454) 2024-03-19 08:36:19 -04:00
netrc.py
ntpath.py gh-120417: Remove unused imports in the stdlib (#120420) 2024-06-12 20:56:42 +02:00
nturl2path.py
numbers.py
opcode.py GH-118093: Specialize CALL_KW (GH-123006) 2024-08-16 17:11:24 +01:00
operator.py gh-115808: Add `is_none and is_not_none to operator` (#115814) 2024-08-10 20:16:34 +01:00
optparse.py
os.py GH-119169: Simplify os.walk() exception handling (#121435) 2024-07-08 17:41:01 +01:00
pdb.py Fix typos in comments and docstring (#122720) 2024-08-07 07:39:16 +01:00
pickle.py gh-122459: Optimize pickling by name objects without __module__ (GH-122460) 2024-08-05 16:21:32 +03:00
pickletools.py
pkgutil.py
platform.py gh-120417: Add #noqa to used imports in the stdlib (#120421) 2024-06-13 16:14:50 +02:00
plistlib.py
poplib.py
posixpath.py pathlib ABCs: remove duplicate realpath() implementation. (#119178) 2024-06-05 18:54:50 +01:00
pprint.py gh-118761: Improve import time of pprint (#122725) 2024-08-07 22:46:54 +03:00
profile.py gh-118673: Remove shebang and executable bits from stdlib modules. (#119658) 2024-05-29 12:43:19 -04:00
pstats.py gh-121905: Consistently use "floating-point" instead of "floating point" (GH-121907) 2024-07-19 08:06:02 +00:00
pty.py gh-118824: Remove deprecated master_open and slave_open from pty (#118826) 2024-05-28 16:42:35 +03:00
py_compile.py
pyclbr.py
pydoc.py gh-122129: Improve support of method descriptors and wrappers in the help title (GH-122157) 2024-07-23 20:45:21 +03:00
queue.py gh-117531: Unblock getters after non-immediate queue shutdown (#117532) 2024-04-10 08:01:42 -07:00
quopri.py gh-118673: Remove shebang and executable bits from stdlib modules. (#119658) 2024-05-29 12:43:19 -04:00
random.py gh-121905: Consistently use "floating-point" instead of "floating point" (GH-121907) 2024-07-19 08:06:02 +00:00
reprlib.py
rlcompleter.py gh-113978: Ignore warnings on text completion inside REPL (#113979) 2024-05-21 18:28:21 +02:00
runpy.py
sched.py gh-121905: Consistently use "floating-point" instead of "floating point" (GH-121907) 2024-07-19 08:06:02 +00:00
secrets.py
selectors.py
shelve.py
shlex.py
shutil.py Fix typos in comments and docstring (#122720) 2024-08-07 07:39:16 +01:00
signal.py
site.py gh-121790: Fix interactive console initialization (#121793) 2024-07-16 00:24:18 +02:00
smtplib.py gh-118673: Remove shebang and executable bits from stdlib modules. (#119658) 2024-05-29 12:43:19 -04:00
socket.py gh-122133: Rework pure Python socketpair tests to avoid use of importlib.reload. (#122493) 2024-07-31 10:24:15 +02:00
socketserver.py
sre_compile.py
sre_constants.py
sre_parse.py
ssl.py gh-118658: Return consistent types from get_un/verified_chain in SSLObject and SSLSocket (#118669) 2024-08-16 22:27:44 +02:00
stat.py gh-120417: Remove unused imports in the stdlib (#120420) 2024-06-12 20:56:42 +02:00
statistics.py gh-121905: Consistently use "floating-point" instead of "floating point" (GH-121907) 2024-07-19 08:06:02 +00:00
string.py
stringprep.py
struct.py gh-120417: Add #noqa to used imports in the stdlib (#120421) 2024-06-13 16:14:50 +02:00
subprocess.py gh-121381 Remove subprocess._USE_VFORK escape hatch (#121383) 2024-07-30 18:39:54 -07:00
symtable.py gh-119698: deprecate `symtable.Class.get_methods` (#121902) 2024-07-22 07:04:17 -07:00
tabnanny.py gh-120495: Fix incorrect exception handling in Tab Nanny (#120498) 2024-06-15 05:04:14 -06:00
tarfile.py gh-121999: Change default tarfile filter to 'data' (GH-122002) 2024-07-26 16:34:13 +02:00
tempfile.py
textwrap.py
this.py
threading.py gh-121474: Add threading.Barrier parties arg sanity check. (GH-121480) 2024-07-30 11:53:07 +03:00
timeit.py gh-118673: Remove shebang and executable bits from stdlib modules. (#119658) 2024-05-29 12:43:19 -04:00
token.py
tokenize.py
trace.py gh-118673: Remove shebang and executable bits from stdlib modules. (#119658) 2024-05-29 12:43:19 -04:00
traceback.py gh-99180: Make StackSummary.should_show_carets private (#119554) 2024-05-25 17:08:32 +00:00
tracemalloc.py
tty.py
turtle.py Fix print usage in turtle doctests (#122940) 2024-08-13 19:39:12 +03:00
types.py
typing.py gh-119180: Improvements to ForwardRef.evaluate (#122210) 2024-08-11 23:42:57 +00:00
uuid.py Fix typos in comments and docstring (#122720) 2024-08-07 07:39:16 +01:00
warnings.py gh-122088: Copy the coroutine status of the underlying callable in @warnings.deprecated (#122086) 2024-07-23 10:59:28 +01:00
wave.py
weakref.py
webbrowser.py gh-118673: Remove shebang and executable bits from stdlib modules. (#119658) 2024-05-29 12:43:19 -04:00
zipapp.py
zipimport.py gh-122188: Move magic number to its own file (#122243) 2024-07-30 15:31:05 -04:00