Signed-off-by: Christian Heimes <christian@python.org>
(cherry picked from commit bf527277d4)
Co-authored-by: Christian Heimes <christian@python.org>
Automerge-Triggered-By: GH:tiran
by-value lookups could fail on complex enums, necessitating a check for
__reduce__ and possibly sabotaging the final enum;
by-name lookups should never fail, and sabotaging is no longer necessary
for class-based enum creation.
(cherry picked from commit 62f1d2b3d7)
Co-authored-by: Ethan Furman <ethan@stoneleaf.us>
Co-authored-by: Ethan Furman <ethan@stoneleaf.us>
This enables, for example, two base Enums to both inherit from `str`, and then both be mixed into the same final Enum:
class Str1Enum(str, Enum):
GH- some behavior here
class Str2Enum(str, Enum):
GH- some more behavior here
class FinalStrEnum(Str1Enum, Str2Enum):
GH- this now works
(cherry picked from commit 8a4f0850d7)
Co-authored-by: Ethan Furman <ethan@stoneleaf.us>
Co-authored-by: Ethan Furman <ethan@stoneleaf.us>
Move the check for missing named flags in flag aliases from Flag creation
to a new *verify* decorator..
(cherry picked from commit eea8148b7d)
Co-authored-by: Ethan Furman <ethan@stoneleaf.us>
Emit a deprecation warning if the numeric literal is immediately followed by
one of keywords: and, else, for, if, in, is, or. Raise a syntax error with
more informative message if it is immediately followed by other keyword or
identifier.
Automerge-Triggered-By: GH:pablogsal
(cherry picked from commit 2ea6d89028)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
test_disallow_instantiation and test_readonly_types try to test all the available
digests, however under FIPS mode, while the algorithms are available, trying to use
them will fail with a ValueError.
(cherry picked from commit a46c220edc)
Co-authored-by: stratakis <cstratak@redhat.com>
Co-authored-by: stratakis <cstratak@redhat.com>
Use "ellipsis" instead of "Ellipsis" in syntax error messages to eliminate confusion with built-in variable Ellipsis.
(cherry picked from commit 39dd141)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
When compiling an AST object with a direct / indirect reference
cycles, on the conversion phase because of exceeding amount of
calls, a segfault was raised. This patch adds recursion guards to
places for preventing user inputs to not to crash AST but instead
raise a RecursionError.
(cherry picked from commit f3491242e4)
Co-authored-by: Batuhan Taskaya <batuhan@python.org>
Fix test_ssl.test_wrong_cert_tls13(): use suppress_ragged_eofs=False,
since read() can raise ssl.SSLEOFError on Windows.
(cherry picked from commit ea0210fa8c)
Co-authored-by: Victor Stinner <vstinner@python.org>
It wasn't actually detecting the regression due to the
assertion being too lenient.
(cherry picked from commit e60ab843cb)
Co-authored-by: Gregory P. Smith <greg@krypto.org>
Fix test_pha_required_nocert() of test_ssl: catch two more EOF cases
(when the recv() method returns an empty string).
(cherry picked from commit 320eaa7f42)
Co-authored-by: Victor Stinner <vstinner@python.org>
Automerge-Triggered-By: GH:jaraco
(cherry picked from commit f6fbdb90ee)
Co-authored-by: Jason R. Coombs <jaraco@jaraco.com>
Co-authored-by: Jason R. Coombs <jaraco@jaraco.com>
Fix a regression in type() when a metaclass raises an exception. The
C function type_new() must properly report the exception when a
metaclass constructor raises an exception and the winner class is not
the metaclass.
(cherry picked from commit bd199e72fb)
Co-authored-by: Victor Stinner <vstinner@python.org>
Fix a crash at Python exit when a deallocator function removes the
last strong reference to a heap type.
Don't read type memory after calling basedealloc() since
basedealloc() can deallocate the type and free its memory.
_PyMem_IsPtrFreed() argument is now constant.
(cherry picked from commit 615069eb08)
Co-authored-by: Victor Stinner <vstinner@python.org>
Co-authored-by: Victor Stinner <vstinner@python.org>
The invalid assignment rules are very delicate since the parser can
easily raise an invalid assignment when a keyword argument is provided.
As they are very deep into the grammar tree, is very difficult to
specify in which contexts these rules can be used and in which don't.
For that, we need to use a different version of the rule that doesn't do
error checking in those situations where we don't want the rule to raise
(keyword arguments and generator expressions).
We also need to check if we are in left-recursive rule, as those can try
to eagerly advance the parser even if the parse will fail at the end of
the expression. Failing to do this allows the parser to start parsing a
call as a tuple and incorrectly identify a keyword argument as an
invalid assignment, before it realizes that it was not a tuple after all.
(cherry picked from commit c878a97968)
Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
Issue should be fixed in [bpo-43757]()
Co-Authored-by: Tzu-ping Chung <uranusjr@gmail.com>
(cherry picked from commit 18f41c04ff)
Co-authored-by: Barney Gale <barney.gale@gmail.com>
Automerge-Triggered-By: GH:encukou
For IPv4 mapped IPv6 addresses, defer privacy check to the mapped IPv4 address. Solves bug where public mapped IPv4 addresses are considered private by the IPv6 check.
Automerge-Triggered-By: GH:gpshead
(cherry picked from commit 83f0f8d62f)
Co-authored-by: Pete Wicken <2273100+JamoBox@users.noreply.github.com>
When a Thread is not joined after it has stopped, its lock may remain in the _shutdown_locks set until interpreter shutdown. If many threads are created this way, the _shutdown_locks set could therefore grow endlessly. To avoid such a situation, purge expired locks each time a new one is added or removed.
(cherry picked from commit c10c2ec7a0)
Co-authored-by: Antoine Pitrou <antoine@python.org>
Added two new attributes to ``_GenericAlias``:
* ``_typevar_types``, a single type or tuple of types indicating what types are treated as a ``TypeVar``. Used for ``isinstance`` checks.
* ``_paramspec_tvars ``, a boolean flag which guards special behavior for dealing with ``ParamSpec``. Setting it to ``True`` means this class deals with ``ParamSpec``.
Automerge-Triggered-By: GH:gvanrossum
(cherry picked from commit b2f3f8e3d8)
* fix subclass error
* Update 2021-05-09-22-52-34.bpo-44089.IoANsN.rst
(cherry picked from commit 2b458c1dba)
Co-authored-by: Ken Jin <28750310+Fidget-Spinner@users.noreply.github.com>
Co-authored-by: Ken Jin <28750310+Fidget-Spinner@users.noreply.github.com>
