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gh-139871: Add `bytearray.take_bytes([n])` to efficiently extract `bytes` by cmaloney · Pull Request #140128 · python/cpython · GitHub

gh-139871: Add bytearray.take_bytes([n]) to efficiently extract bytes - #140128

Merged

encukou merged 46 commits into

python:mainfrom

cmaloney:bytearray_bytes

Nov 13, 2025

Commits on Oct 14, 2025

gh-139871: Update bytearray to contain PyBytesObject
cmaloney
committed
daf8e02
📜🤖 Added by blurb_it.
blurb-it[bot]
authored
39b2d15

Commits on Oct 15, 2025

Add bytearray.take_bytes
cmaloney
committed
86faf1d
Merge branch 'main' into bytearray_bytes
cmaloney
committed
a9328f4
Update Objects/bytearrayobject.c

cmaloney
and
vstinner
authored
e9f5ca9
Review fixes
cmaloney
committed
4784957
Merge branch 'main' into bytearray_bytes
cmaloney
authored
db19def

Commits on Oct 17, 2025

Update Objects/bytearrayobject.c

cmaloney
and
maurycy
authored
451c302

Commits on Oct 18, 2025

Add tests around alloc and getsizeof that show clearing isn't working which is resulting in threading failure
cmaloney
committed
bab7151
Fix resizing to 0 length / clearing leaving one byte alloc
cmaloney
committed
cb2377c
review fix: handle NULL return from from PyBytes_FromStringAndSize

cmaloney
and
maurycy
committed
20175f8
Add take_bytes to test_free_threading
cmaloney
committed
e485595
Missed line...
cmaloney
committed
b5535d0
Simplify getting out ob_bytes
cmaloney
committed
7c6e8a8
Include PyBytesObject in __alloc__ of bytearray.
cmaloney
committed
4e27d13

Commits on Oct 27, 2025

Apply suggestion from @vstinner

cmaloney
and
vstinner
authored
9887dad
Don't multiply by sizeof(char) as it's always 1
cmaloney
committed
6e4b910
Rely on bytes for end of buffer NULL
cmaloney
committed
b6f8403
Personal review fixes
cmaloney
committed
28cb8c5
Simplify resize error handling
cmaloney
committed
f03b895
Use right PyLong constructor
cmaloney
committed
a45f3c2

Commits on Oct 29, 2025

Add a define for max bytearray size, comment size=0
cmaloney
committed
c8943e3
Remove oold comment
cmaloney
committed
5bffb7e
Update test_capi.test_bytearray for MemoryError vs OverflowError
cmaloney
committed
583ea4b
More accurate size and alloc calculation
cmaloney
committed
8ee14e6
Comment and minor doc tweaks
cmaloney
committed
d70e369
Apply suggestion from @vstinner

cmaloney
and
vstinner
authored
97be818
Remove _PyByteArray_empty_string, add bytearray_reinit_from_bytes
cmaloney
authored
99e49ef
Update Stable API concerns: restore _empty_string an dmove _PyBytesObject_SIZE
cmaloney
committed
f4b62d9
Restore _PyByteArray_empty_string in .c file
cmaloney
committed
48afb62
remove line that shouldn't have been added
cmaloney
committed
8c81e03

Commits on Oct 30, 2025

Apply suggestion from @encukou

cmaloney
and
encukou
authored
313e78c
Remove original variable, no longer used
cmaloney
committed
c028e2b
remove _PyByteArray_empty_string
cmaloney
committed
a69b338
Add take_bytes_n free-threading test
cmaloney
committed
2a95118

Commits on Oct 31, 2025

Expand comment for ob_alloc
cmaloney
committed
9680e8a
Add note on memmove tradeoff
cmaloney
committed
02882af
Move suggested optimizing refactors to whatsnew
cmaloney
committed
b67d10c
Remove unintended change
cmaloney
committed
6db8822

Commits on Nov 4, 2025

Fix intermittent failure on deallocation from uninitialized memory
cmaloney
committed
fb84c14
PEP 7
cmaloney
committed
0258891
Tweak comment
cmaloney
committed
c470178

Commits on Nov 7, 2025

Add +1 so allocation is over max byte length
cmaloney
committed
9681135
Minor tweak for flow in whatsnew entry
cmaloney
committed
442692a
Apply suggestions from code review

cmaloney
and
encukou
authored
ee0d6d6

Commits on Nov 13, 2025

Merge branch 'main' into bytearray_bytes
encukou
authored
cc238c2

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