* Idempotent `.pth` execution in `site.addsitedir`
* potentially fix monkeypatch leak?
* fix blind copy paste of recommendation
* Update 2026-03-31-16-15-15.gh-issue-75723.BZ4Rsn.rst
* fix implicit merge conflict with 24c4aecc16
* Add failing tests for gh-75723
Based on @asottle branch !asottle-gh-75723 but refactored for `main`.
This will need a different backport.
* Repair gh-75723
The original fix is here: https://github.com/python/cpython/pull/147951
but I'm refactoring a bit for `main`.
* Refactor _make_mod() so we can use it to create package modules too
* Add myself to CODEOWNERS for the site module
---------
Co-authored-by: anthony sottile <asottile@umich.edu>
Co-authored-by: Filipe Laíns <lains@riseup.net>
Currently:
```python
buffer = bytearray(b'abc\ndef')
n = buffer.find(b'\n')
data = bytes(buffer[:n + 1])
del buffer[:n + 1]
assert data == b'abc'
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
assert data == b'abc'
^^^^^^^^^^^^^^
AssertionError
```
Adding in the `\n` makes the two match:
```python
buffer = bytearray(b'abc\ndef')
n = buffer.find(b'\n')
data = bytes(buffer[:n + 1])
del buffer[:n + 1]
assert data == b'abc\n'
assert buffer == bytearray(b'def')
buffer = bytearray(b'abc\ndef')
n = buffer.find(b'\n')
data = buffer.take_bytes(n + 1)
assert data == b'abc\n'
assert buffer == bytearray(b'def')
```
The line highlights on the heatmap are driven by the URL hash and the
`:target` selector. When clicking a caller/callee link for the line that
was already selected, the hash doesn't change, so the browser keeps the
existing target state and doesn't restart the animation. Due to this the
highlight only works the first time.
With this fix, line navigation goes through JavaScript. If the target
URL already points to the current location, the highlight is replayed by
clearing the animation, forcing style recalculation, and restoring it.
The `baseline_self` variable isn't initialized for structural elided
roots. This variable is accessed later unconditionally and leads to a
crash.
The child process ends up being invoked with `--diff_flamegraph` instead
of the correct argument.
gh-149496: Fix MacOSTest.test_default failing when BROWSER env var is set
MacOSTest.test_default calls webbrowser.get() and asserts it returns a
MacOS instance. When BROWSER is set in the environment (e.g. BROWSER=open,
a common macOS workaround for the old osascript-based implementation),
register_standard_browsers() registers a GenericBrowser as the preferred
browser instead, causing the assertion to fail.
This is a regression introduced in gh-137586, which added MacOSTest and
moved test_default into it from MacOSXOSAScriptTest. MacOSXOSAScriptTest
had an identical setUp() guard added in gh-131254 specifically to fix this
same failure. The guard was not carried over to MacOSTest.
Add setUp() to MacOSTest to unset BROWSER for the duration of each test,
restoring the isolation that was already established as the correct pattern
for macOS webbrowser tests.
The data filter rewrote linknames with normpath() but ran the
containment check against the un-normalised value, and computed a
symlink's directory before stripping trailing slashes. Both let a
crafted archive create links pointing outside the destination. Also
reject link members that resolve to the destination directory itself,
which could otherwise replace it with a symlink and redirect all
subsequent members.
(Patch by Greg; Petr's just reviewing & merging.)
Co-authored-by: Gregory P. Smith <greg@krypto.org>
Also fixes gh-149507, regenerating `configure` for 3.16.
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Co-authored-by: Zachary Ware <zach@python.org>
The power ABI specification requires that compilers maintain a back
chain by default, so unwinding already works without a dedicated
frame pointer. Don't use -fno-omit-frame-pointer on ppc64le.
For Python macOS framework builds, update all Info.plist files to be more
compliant with current Apple guidelines. Original patch contributed by
Martinus Verburg.
