__enter__(), __exit__(), __aenter__(), and __aexit__() can now be
arbitrary descriptors, not only normal methods, for consistency with the
"with" and "async with" statements.
Add `gi_state`, `cr_state`, and `ag_state` attributes to generators,
coroutines, and async generators respectively. These attributes return the
current state as a string (e.g., `GEN_RUNNING`, `CORO_SUSPENDED`).
The `inspect.getgeneratorstate()`, `inspect.getcoroutinestate()`, and
`inspect.getasyncgenstate()` functions now return these attributes directly.
This is in preparation for making `gi_frame` thread-safe, which may involve
stop-the-world synchronization. The new state attributes avoid potential
performance cliffs in `inspect.getgeneratorstate()` and similar functions by
not requiring frame access.
Also removes unused `FRAME_COMPLETED` state and renumbers the frame state enum
to start at 0 instead of -1.
Modifies handling of `.gz` files in Android app payloads, and ensures that
when the Android testbed streams logs, stream flushes aren't treated as
newlines. This improves the output of test suites that use "one dot per test"
progress indicators.
Add a FRAME_SUSPENDED_YIELD_FROM_LOCKED state that acts as a brief
lock, preventing other threads from transitioning the frame state
while gen_getyieldfrom reads the yield-from object off the stack.
mmap() returns MAP_FAILED ((void*)-1) on error, not NULL. The current
check never detects mmap failures, so jitdump initialization proceeds
even when the memory mapping fails.
Make the deprecated set_type method resets the format, using the
same code as in type initialization.
Implementation note: this was done in PyCPointerType_init
after calling PyCPointerType_SetProto, but was forgotten
after in PyCPointerType_set_type_impl's call to
PyCPointerType_SetProto.
With this change, setting the format is conceptually part of
setting proto (i.e. the pointed-to type).
Co-authored-by: AN Long <aisk@users.noreply.github.com>
This ensures the buffers used by the empty `bytearray` and `array.array`
are aligned the same as a pointer returned by the allocator. This is a
more convenient default for interop with other languages that have
stricter requirements of type-safe buffers (e.g. Rust's `&[T]` type)
even when empty.
This affects string formatting as well as bytes and bytearray formatting.
* For errors in the format string, always include the position of the
start of the format unit.
* For errors related to the formatted arguments, always include the number
or the name of the formatted argument.
* Suggest more probable causes of errors in the format string (stray %,
unsupported format, unexpected character).
* Provide more information when the number of arguments does not match
the number of format units.
* Raise more specific errors when access of arguments by name is mixed with
sequential access and when * is used with a mapping.
* Add tests for some uncovered cases.
In 3.11 ResourceReader, Traversable, & TraversableResources moved from importlib.abc to importlib.resources.abc (commit e712a5b277).
In 3.12 old import locations were deprecated (commit 71848c9609).
In 3.14 backwards-compat support was removed (commit 0751511d24).
Co-authored-by: Brett Cannon <brett@python.org>
Optimize bytes.translate() by deferring change detection
Move the equality check out of the hot loop to allow better compiler
optimization. Instead of checking each byte during translation, perform
a single memcmp at the end to determine if the input can be returned
unchanged.
This allows compilers to unroll and pipeline the loops, resulting in ~2x
throughput improvement for medium-to-large inputs (tested on an AMD zen2).
No change observed on small inputs.
It will also be faster for bytes subclasses as those do not need change
detection.
Changes in the urllib.parse module:
* Add option missing_as_none in urlparse(), urlsplit() and urldefrag(). If
it is true, represent not defined components as None instead of an
empty string.
* Add option keep_empty in urlunparse() and urlunsplit(). If it is
true, keep empty non-None components in the resulting string.
Along the way, leave a deprecated Tools/wasm/wasi/__main__.py behind for backwards-compatibility.
Co-authored-by: Zachary Ware <zachary.ware@gmail.com>
Emit a warning in base64.urlsafe_b64decode() and base64.b64decode() when
the "+" or "/" characters occur in the Base64 data with alternative
alphabet if they are not the part of the alternative alphabet.
It is a DeprecationWarning in the strict mode (will be error) and
a FutureWarning in non-strict mode (will be ignored).
