Adds `python -m profiling.sampling dump <pid>`, which prints a single
traceback-style snapshot of a running process's Python stack via the
existing `_remote_debugging` unwinder. Supports per-thread status,
source line highlighting, optional bytecode opcodes, and async-aware
task reconstruction (`--async-aware`, default `--async-mode=all`).
Support custom headers in `python -m http.server` and `http.server.SimpleHTTPRequestHandler`.
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
unittest.TestCase methods assertWarns() and assertWarnsRegex() no longer
swallow warnings that do not match the specified category or regex.
Nested context managers are now supported.
The kind attribute of ast.Constant was not mentioned in the
documentation. It is set to 'u' for u-prefixed string literals
and None for all other constants.
---------
Co-authored-by: Anuj Bharambe <anujnitinb@gmail.com>
Previously, identical PickleBuffers did not preserve identity.
Also, empty writable PickleBuffer memoized an empty bytearray object
in place of b'' which is a singleton in CPython, so the following
references to b'' were unpickled as an empty bytearray object.
Set ImportError.name on errors from runpy.run_module/run_path
`runpy.run_module()` and `runpy.run_path()` now set the `name` attribute
of the `ImportError` they raise to the requested module name, matching
the behaviour of a regular import statement (previously `name` was
always `None`, which broke introspection).
The `name=` kwarg is gated on `issubclass(error, ImportError)` because
`_get_module_details()` is also used by `_run_module_as_main()` with
a private `_Error` sentinel class. `_Error` does not subclass
ImportError, and `BaseException.__init__` rejects unknown kwargs at
the C level, so passing `name=` unconditionally would break the
`python -m foo` codepath.
This makes it possible to set the gzip header mtime field without
overriding time.time(), making it useful when creating reproducible
archives.
* 📜🤖 Added by blurb_it.
---------
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Ethan Furman <ethan@stoneleaf.us>
Co-authored-by: Savannah Ostrowski <savannah@python.org>
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Co-authored-by: Emma Smith <emma@emmatyping.dev>
The email.headerregistry.Address constructor raised an error if
addr_spec contained a non-ASCII character. (But it fully supports
non-ASCII in the separate username and domain args.) This change
removes the error for a non-ASCII addr_spec, as well as the
Defect that triggered it. In the unicode era non-ascii is not a
defect, though it is an error when an attempt is made to serialize
it to ascii. The serialization issue was handled in #122540.
The email generators had been incorrectly flattening non-ASCII email
addresses to RFC 2047 encoded-word format, leaving them undeliverable.
(RFC 2047 prohibits use of encoded-word in an addr-spec.)
This change raises a HeaderWriteError when attempting to flatten an
EmailMessage with a non-ASCII addr-spec and a policy with utf8=False.
(Exception: If the non-ASCII address originated from parsing a message,
it will be flattened as originally parsed, without error.) This also applies
to other contexts in which RFC2047 words are not allowed by the RFCs.
Non-ASCII email addresses are supported when using a policy with
utf8=True (such as email.policy.SMTPUTF8) under RFCs 6531 and 6532.
Non-ASCII email address domains (but not localparts) can also be used
with non-SMTPUTF8 policies by encoding the domain as an IDNA A-label.
(The email package does not perform this encoding, because it cannot
know whether the caller wants IDNA 2003, IDNA 2008, or some other
variant such as UTS #46.)
Co-authored-by: R. David Murray <rdmurray@bitdance.com>
