- drop TargetScopeError in favour of raising SyntaxError directly
as per the updated PEP 572
- comprehension iteration variables are explicitly local, but
named expression targets in comprehensions are nonlocal or
global. Raise SyntaxError as specified in PEP 572
- named expression targets in the outermost iterable of a
comprehension have an ambiguous target scope. Avoid resolving
that question now by raising SyntaxError. PEP 572
originally required this only for cases where the bound name
conflicts with the iteration variable in the comprehension,
but CPython can't easily restrict the exception to that case
(as it doesn't know the target variable names when visiting
the outermost iterator expression)
(cherry picked from commit 5dbe0f59b7)
Fix compilation of "break" and "continue" in the
"finally" block when the corresponding "try" block
contains "return" with a non-constant value.
(cherry picked from commit ef61c524dd)
PyConfig_Read() is now responsible to handle early calls to
PySys_AddXOption() and PySys_AddWarnOption().
Options added by PySys_AddXOption() are now handled the same way than
PyConfig.xoptions and command line -X options.
For example, PySys_AddXOption(L"faulthandler") enables faulthandler
as expected.
(cherry picked from commit 120b707a6d)
empty_argv is no longer static in Python 3.8, but it is declared in
a temporary scope, whereas argv keeps a reference to it.
empty_argv memory (allocated on the stack) is reused by
make_sys_argv() code which is inlined when using gcc -O3.
Define empty_argv in PySys_SetArgvEx() body, to ensure
that it remains valid for the whole lifetime of
the PySys_SetArgvEx() call.
(cherry picked from commit c48682509d)
bpo-37834: Normalise handling of reparse points on Windows
* ntpath.realpath() and nt.stat() will traverse all supported reparse points (previously was mixed)
* nt.lstat() will let the OS traverse reparse points that are not name surrogates (previously would not traverse any reparse point)
* nt.[l]stat() will only set S_IFLNK for symlinks (previous behaviour)
* nt.readlink() will read destinations for symlinks and junction points only
bpo-1311: os.path.exists('nul') now returns True on Windows
* nt.stat('nul').st_mode is now S_IFCHR (previously was an error)
* bpo-32912: Revert warnings for invalid escape sequences.
DeprecationWarning will continue to be emitted for invalid escape sequences in string and bytes literals in 3.8 just as it did in 3.7.
SyntaxWarning may be emitted in the future. But per mailing list discussion, we don't yet know when because we haven't settled on how to do so in a non-disruptive manner.
This changeset increases the default size of the stack
for threads on macOS to the size of the stack
of the main thread and reenables the relevant
recursion test.
(cherry picked from commit 1a057bab0f)
Co-authored-by: Ronald Oussoren <ronaldoussoren@mac.com>
https://bugs.python.org/issue37500
Add a new field to the compiler structure that allows to be configured
so no bytecode is emitted. In this way is possible to detect errors by
walking the nodes while preserving optimizations.
https://bugs.python.org/issue37500
(cherry picked from commit 18c5f9d44d)
Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
* bpo-37697: Sync with importlib_metadata 0.19
* Run make regen-importlib
* 📜🤖 Added by blurb_it.
(cherry picked from commit 049460da9c)
Co-authored-by: Jason R. Coombs <jaraco@jaraco.com>
Nested BinOp instances (e.g. a+b+c) had a wrong col_offset for the
second BinOp (e.g. 2 instead of 0 in the example). Fix it by using the
correct st node to copy the line and col_offset from in ast.c.
(cherry picked from commit 110a47c4f4)
Co-authored-by: Carl Friedrich Bolz-Tereick <cfbolz@gmx.de>
Fix sys.excepthook() and PyErr_Display() if a filename is a bytes
string. For example, for a SyntaxError exception where the filename
attribute is a bytes string.
Cleanup also test_sys:
* Sort imports.
* Rename numruns global var to INTERN_NUMRUNS.
* Add DisplayHookTest and ExceptHookTest test case classes.
* Don't save/restore sys.stdout and sys.displayhook using
setUp()/tearDown(): do it in each test method.
* Test error case (call hook with no argument) after the success case.
(cherry picked from commit f9b7457bd7)
Co-authored-by: Victor Stinner <vstinner@redhat.com>
Add PyCode_NewEx to be used internally and set PyCode_New as a compatibility wrapper
(cherry picked from commit 4a2edc34a4)
Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
sys._base_executable is now always defined on all platforms, and can be overridden through configuration.
Also adds test.support.PythonSymlink to encapsulate platform-specific logic for symlinking sys.executable
… as proposed in PEP 572; key is now evaluated before value.
https://bugs.python.org/issue35224
(cherry picked from commit c8a35417db)
Co-authored-by: Jörn Heissler <joernheissler@users.noreply.github.com>
On Windows, os.dup() no longer creates an inheritable fd when handling a
character file.
(cherry picked from commit 28fca0c422)
Co-authored-by: Zackery Spytz <zspytz@gmail.com>
Fix a regression introduced by af8646c805 that was causing code of the form:
if True and False:
do_something()
to be optimized incorrectly, eliminating the block.
(cherry picked from commit 05f8318655)
Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
The peephole optimizer was not optimizing correctly bytecode after negative deltas were introduced. This is due to the fact that some special values (255) were being searched for in both instruction pointer delta and line number deltas.
(cherry picked from commit 3498c642f4)
Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
PyAST_obj2mod_ex() is similar to PyAST_obj2mod() with an additional
'feature_version' parameter which is unused.
(cherry picked from commit 022ac0a497)
Co-authored-by: Victor Stinner <vstinner@redhat.com>
Add a new _PyCompilerFlags_INIT macro to initialize PyCompilerFlags
variables, rather than initializing cf_flags and cf_feature_version
explicitly in each variable.
(cherry picked from commit 37d66d7d4b)
Co-authored-by: Victor Stinner <vstinner@redhat.com>
Rename compile() feature_version parameter to _feature_version and
convert it to a keyword-only parameter.
Update also test_type_comments to pass feature_version as a tuple.
(cherry picked from commit efdf6ca90f)
Miss Islington (bot)
Pablo Galindo
Nick Coghlan
Raymond Hettinger
Serhiy Storchaka
Victor Stinner
Steve Dower
Jeroen Demeyer
Kyle Stanley
Inada Naoki
David Carlier
Eric Snow