python / cpython Public

…ame (GH-29726)

…upport memory sanitizer (GH-29806)

…H-29736)

* Inlined code from variance functions

* Added helper functions for the float square root of a fraction

* Call helper functions

* Add blurb

* Fix over-specified test

* Add a test for the _sqrt_frac() helper function

* Increase the tested range

* Add type hints to the internal function.

* Fix test for correct rounding

* Simplify ⌊√(n/m)⌋ calculation

Co-authored-by: Mark Dickinson <dickinsm@gmail.com>

* Add comment and beef-up tests

* Test for zero denominator

* Add algorithmic references

* Add test for the _isqrt_frac_rto() helper function.

* Compute the 109 instead of hard-wiring it

* Stronger test for _isqrt_frac_rto()

* Bigger range

* Bigger range

* Replace float() call with int/int division to be parallel with the other code path.

* Factor out division. Update proof link. Remove internal type declaration

Co-authored-by: Mark Dickinson <dickinsm@gmail.com>

…H-29587)

* Fix thread lock in zlib.Decompress.flush() may go wrong

Getting `.unconsumed_tail` before acquiring the thread lock may mix up decompress state.

…rough the Store package (GH-29799)

Co-authored-by: Erlend Egeberg Aasland <erlend.aasland@innova.no>

)

The presence of frozen module headers in srcdir interfers with OOT
build. Make considers headers in srcdir up to date, but later builds do
not use VPATH to locate files. make clean now removes the headers, too.

Also remove stale ``_bootstrap_python`` from .gitignore.

"make regen-all" now produces the same output when run from a
directory other than the source tree: when building Python out of the
source tree.

``Modules/Setup.stdlib`` contains ``Setup`` lines for all stdlib extension modules for which ``configure`` has detected their dependencies. The file is not used yet and still under development. To use the file, do ``ln -sfr Modules/Setup.stdlib Modules/Setup.local``.

…ng summary (#29232)

This does two changes that are quite related.

0. it add that variable binding can occur in pattern matching, an update of 3.10
which seems to have been omitted from the list of bindings
1. Given how long the sentence already was, with even subcases in the middle of
the sentence, the commit breaks the sentence into an actual list.

The docstring for `typing.NewType` is no longer strictly accurate, now that `NewType` is a class, rather than a function

…n" (GH-29154)

* [bpo-43137](): webbrowser: Prefer gio open over gvfs-open
    
    gvfs-open(1) was superseded by gio(1) in 2015, and removed from GNOME
    releases in 2018. Debian and its derivatives like Ubuntu currently still
    have a compatibility shim for gvfs-open, but we plan to remove it.
    
    webbrowser prefers xdg-settings and xdg-open over gvfs-open, so this
    will only have any practical effect on systems where the xdg-utils
    package is not installed.
    
    Note that we don't check for GNOME_DESKTOP_SESSION_ID before using gio.
    gio does the right thing on any desktop environment that follows
    freedesktop.org specifications, similar to xdg-settings, so it's
    unnecessary to guard in this way. GNOME_DESKTOP_SESSION_ID was deprecated
    in 2008 and removed from upstream gnome-session in 2018 (it's still
    present in Debian/Ubuntu for backward compatibility, but probably
    shouldn't be). The replacement way to detect a desktop environment is
    the XDG_CURRENT_DESKTOP environment variable, which is a colon-separated
    sequence where the first item is the current desktop environment and the
    second and subsequent items (if present) are other desktop environments
    that it resembles or is based on.
    
    Resolves: 

* [bpo-43137](): webbrowser: Never invoke gnome-open
    
    gnome-open was part of GNOME 2, which was superseded in around 2010 and
    is unmaintained. The replacement was gvfs-open, which was subsequently
    replaced by gio(1) (as used in the previous commit).

* [bpo-43137](): webbrowser: Don't run gvfs-open on GNOME
    
    gvfs-open was deprecated in 2015 and removed in 2018. The replacement
    is gio(1) (as used in a previous commit).
    
    GNOME_DESKTOP_SESSION_ID was deprecated in 2008 and removed in 2018.
    The replacement is XDG_CURRENT_DESKTOP (as mentioned in a previous
    commit).

---

To test this on a typical modern Linux system, it is necessary to disable the `xdg-settings` and `xdg-open` code paths, for example with this hack:

<details><summary>Hack to disable use of xdg-settings and xdg-open</summary>

```diff
diff --git a/Lib/webbrowser.py b/Lib/webbrowser.py
index 3244f206aa..8f6c09d1d2 100755
--- a/Lib/webbrowser.py
+++ b/Lib/webbrowser.py
@@ -459,7 +459,7 @@ def open(self, url, new=0, autoraise=True):
 def register_X_browsers():
 
     # use xdg-open if around
-    if shutil.which("xdg-open"):
+    if 0 and shutil.which("xdg-open"):
         register("xdg-open", None, BackgroundBrowser("xdg-open"))
 
     # Opens an appropriate browser for the URL scheme according to
@@ -549,7 +549,7 @@ def register_standard_browsers():
         # Prefer X browsers if present
         if os.environ.get("DISPLAY") or os.environ.get("WAYLAND_DISPLAY"):
             try:
-                cmd = "xdg-settings get default-web-browser".split()
+                cmd = "false xdg-settings get default-web-browser".split()
                 raw_result = subprocess.check_output(cmd, stderr=subprocess.DEVNULL)
                 result = raw_result.decode().strip()
             except (FileNotFoundError, subprocess.CalledProcessError, PermissionError, NotADirectoryError) :
```

</details>

I haven't attempted to assess which of the specific web browsers such as Galeon are still extant, and which ones disappeared years ago. They could almost certainly be cleaned up, but that's beyond the scope of this PR.

Automerge-Triggered-By: GH:asvetlov

Automerge-Triggered-By: GH:asvetlov

… is valid. Add more assertions. (GH-29627)

… if inside parentheses (GH-29757)

Co-authored-by: Steve Dower <steve.dower@python.org>

Document the `port` parameter to `loop.create_server` in `asyncio`. In
particular, note that if `host` resolves to multiple network interfaces,
passing in `port=0` will result in a different random unused port being
used for each interface.

Automerge-Triggered-By: GH:ericvsmith

* bpo-45514: Apply changes from importlib_resources@a3ef4128c6

* Mark legacy functions as deprecated in the docs and link to the migration docs in importlib_resources docs.

* Apply changes from importlib_resources@329ae9d5f2c.

* Indicate importlib.resources as a module.

Co-authored-by: Filipe Laíns <lains@riseup.net>