The documentation was not covering multiple targets enclosed by
parenthesis nor multiple targets enclosed by brackets, adding them all
would be heavy, an else cover them all and is lighter to read.
(cherry picked from commit 082875dcd6)
Co-authored-by: Julien Palard <julien@palard.fr>
Fix a bug I introduced in GH-9864 by which coroutines are treated as synonymous of function coroutines.
Also, fix the same mistake (coroutines == function coroutines) already present in other parts of the reference.
I'm very sorry for the hassle.
(cherry picked from commit 95f68b10d5)
Co-authored-by: Andrés Delfino <adelfino@gmail.com>
Co-authored-by: Benjamin Peterson <benjamin@python.org>
(cherry picked from commit ad8a000420)
Co-authored-by: Tony Flury <anthony.flury@btinternet.com>
'expresson list' refers to the grammar term 'expression_list' in the subscription production.
(cherry picked from commit 4fddd4e406)
Co-authored-by: Andrés Delfino <adelfino@gmail.com>
This is a simple grammatical fix correcting "...object whose `__self__` attributes is ..." to "...object whose `__self__` attribute is ...".
(cherry picked from commit 00818c8ffd)
Co-authored-by: Zach Mitchell <zmitchell@users.noreply.github.com>
`int` fails back to `__trunc__` is `__int__` isn't defined, so cover
that in the docs.
(cherry picked from commit 308eab979d)
Co-authored-by: Eric Appelt <eric.appelt@gmail.com>
When `__getattr__` is implemented, attribute lookup will always fall back to that,
even if the initial failure comes from `__getattribute__` or a descriptor's `__get__`
method (including property methods).
(cherry picked from commit d1f318105b)
Co-authored-by: Cheryl Sabella <cheryl.sabella@gmail.com>
The f-string example for using datetime format specifier does not match the given output.
Changed the format from %b to %B so it matches the output of "January".
Make it clear that setting __class__ on a module has worked since 3.5,
but support for __getattr__ and __dir__ on module instances requires 3.7+
Patch by Cheryl Sabella.
* Document `from __future__ import annotations`
* Provide plumbing and tests for `from __future__ import annotations`
* Implement unparsing the AST back to string form
This is required for PEP 563 and as such only implements a part of the
unparsing process that covers expressions.
In lexical analysis reference documentation, the internal link to
the string literal concatenation section was written as`.. _string-catenation:`.
Changed that to `.. _string-concatenation:`.
Python now supports checking bytecode cache up-to-dateness with a hash of the
source contents rather than volatile source metadata. See the PEP for details.
While a fairly straightforward idea, quite a lot of code had to be modified due
to the pervasiveness of pyc implementation details in the codebase. Changes in
this commit include:
- The core changes to importlib to understand how to read, validate, and
regenerate hash-based pycs.
- Support for generating hash-based pycs in py_compile and compileall.
- Modifications to our siphash implementation to support passing a custom
key. We then expose it to importlib through _imp.
- Updates to all places in the interpreter, standard library, and tests that
manually generate or parse pyc files to grok the new format.
- Support in the interpreter command line code for long options like
--check-hash-based-pycs.
- Tests and documentation for all of the above.
The current behaviour of yield expressions inside comprehensions and
generator expressions is essentially an accident of implementation - it
arises implicitly from the way the compiler handles yield expressions inside
nested functions and generators.
Since the current behaviour wasn't deliberately designed, and is inherently
confusing, we're deprecating it, with no current plans to reintroduce it.
Instead, our advice will be to use a named nested generator definition
for cases where this behaviour is desired.
async and await keywords has been merged into upstream, but they are
all missing in the lexical analysis docs. This change adds them to the
appropriate keywords section in documentation.
Miss Islington (bot)
Serhiy Storchaka
Elvis Pranskevichus
Cheryl Sabella
Guido van Rossum
İsmail Arılık
KatherineMichel
Antoine Pitrou
Mariatta
Ivan Levkivskyi
Benjamin Peterson
Berker Peksag
Tom Floyer
Barry Warsaw