Commit Graph

85 Commits

Author SHA1 Message Date
Mark Shannon fee552669f
Produce cleaner bytecode for 'with' and 'async with' by generating separate code for normal and exceptional paths. (#6641)
Remove BEGIN_FINALLY, END_FINALLY, CALL_FINALLY and POP_FINALLY bytecodes. Implement finally blocks by code duplication.
Reimplement frame.lineno setter using line numbers rather than bytecode offsets.
2019-11-21 09:11:43 +00:00
Jason R. Coombs 8ed6503eca bpo-38121: Sync importlib.metadata with 0.22 backport (GH-15993)
* bpo-38121: Sync importlib.metadata with 0.22 backport

* 📜🤖 Added by blurb_it.
2019-09-12 10:29:11 +01:00
Jason R. Coombs 17499d8270 bpo-38086: Sync importlib.metadata with importlib_metadata 0.21. (GH-15840)
https://gitlab.com/python-devs/importlib_metadata/-/tags/0.21
2019-09-10 14:53:31 +01:00
Zackery Spytz ce6a070414 bpo-34880: Add the LOAD_ASSERTION_ERROR opcode. (GH-15073)
Fix assert statement misbehavior if AssertionError is shadowed.
2019-08-25 12:44:09 +03:00
Serhiy Storchaka ef61c524dd
bpo-37830: Fix compilation of break and continue in finally. (GH-15320)
Fix compilation of "break" and "continue" in the
"finally" block when the corresponding "try" block
contains "return" with a non-constant value.
2019-08-24 13:11:52 +03:00
Jason R. Coombs 049460da9c
bpo-37697: Sync with importlib_metadata 0.19 (#14993)
* bpo-37697: Sync with importlib_metadata 0.19

* Run make regen-importlib

* 📜🤖 Added by blurb_it.
2019-07-28 14:59:24 -04:00
Pablo Galindo cd6e83b481 bpo-37593: Swap the positions of posonlyargs and args in the constructor of ast.parameters nodes (GH-14778)
https://bugs.python.org/issue37593
2019-07-14 16:32:18 -07:00
Pablo Galindo b3ca7972c8
bpo-35224: Bump the pyc magic number by 1 instead of by 10 in last modification (GH-14320) 2019-06-23 17:00:08 +01:00
Pablo Galindo 663131a6e2
bpo-35224: Bump the pyc magic number after the change in MAP_ADD (GH-14313) 2019-06-22 23:47:34 +01:00
Pablo Galindo 3498c642f4
bpo-37213: Handle negative line deltas correctly in the peephole optimizer (GH-13969)
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.
2019-06-13 19:16:22 +01:00
Jason R. Coombs 1bbf7b661f bpo-34632: Add importlib.metadata (GH-12547)
Add importlib.metadata module as forward port of the standalone importlib_metadata.
2019-05-24 16:59:01 -07:00
Steve Dower b82e17e626
bpo-36842: Implement PEP 578 (GH-12613)
Adds sys.audit, sys.addaudithook, io.open_code, and associated C APIs.
2019-05-23 08:45:22 -07:00
Pablo Galindo 8c77b8cb91
bpo-36540: PEP 570 -- Implementation (GH-12701)
This commit contains the implementation of PEP570: Python positional-only parameters.

* Update Grammar/Grammar with new typedarglist and varargslist

* Regenerate grammar files

* Update and regenerate AST related files

* Update code object

* Update marshal.c

* Update compiler and symtable

* Regenerate importlib files

* Update callable objects

* Implement positional-only args logic in ceval.c

* Regenerate frozen data

* Update standard library to account for positional-only args

* Add test file for positional-only args

* Update other test files to account for positional-only args

* Add News entry

* Update inspect module and related tests
2019-04-29 13:36:57 +01:00
Anthony Sottile ab9b31f947 bpo-35843: Implement __getitem__ for _NamespacePath (GH-11690) 2019-03-08 10:58:00 -08:00
Anthony Sottile 995d9b9297 bpo-16806: Fix `lineno` and `col_offset` for multi-line string tokens (GH-10021) 2019-01-13 13:05:13 +09:00
INADA Naoki c2e1607a51 bpo-34100: Merge constants recursively (GH-8341)
There are some same consts in a module.  This commit merges them into
single instance.  It reduces number of objects in memory after loading modules.


https://bugs.python.org/issue34100
2018-11-26 04:23:22 -08:00
Serhiy Storchaka 95b6acf951
bpo-34876: Change the lineno of the AST for decorated function and class. (GH-9731)
It was overridden by the lineno of the first decorator. Now it is
the lineno of 'def' or 'class'.
2018-10-30 13:16:02 +02:00
Quentin Agren 9e14e49f13 bpo-35024: Remove redundant and possibly incorrect verbose message after writing '.pyc' (GH-9998)
Since `SourceFileLoader.set_data()` catches exceptions raised by `_write_atomic()` and logs an informative message consequently, always logging successful outcome in 'SourceLoader.get_code()' seems redundant.  



https://bugs.python.org/issue35024
2018-10-26 11:36:30 -07:00
Quentin d7c3e5f0e8 importlib: Fix typo in SourceLoader.path_stats docstring (GH-10052) 2018-10-25 13:04:28 +02:00
Serhiy Storchaka 79d1c2e6c9
bpo-25711: Rewrite zipimport in pure Python. (GH-6809) 2018-09-18 22:22:29 +03:00
Serhiy Storchaka da8d72c953
bpo-12458: Fix line numbers for multiline expressions. (GH-8774) 2018-09-17 15:17:29 +03:00
Carl Meyer b193fa996a bpo-33499: Add PYTHONPYCACHEPREFIX env var for alt bytecode cache location. (GH-6834)
In some development setups it is inconvenient or impossible to write bytecode
caches to the code tree, but the bytecode caches are still useful. The
PYTHONPYCACHEPREFIX environment variable allows specifying an alternate
location for cached bytecode files, within which a directory tree mirroring the code
tree will be created. This cache tree is then used (for both reading and writing)
instead of the local `__pycache__` subdirectory within each source directory.

Exposed at runtime as sys.pycache_prefix (defaulting to None), and can
be set from the CLI as "-X pycache_prefix=path".

Patch by Carl Meyer.
2018-06-16 14:40:56 +10:00
Serhiy Storchaka 941ec210aa
bpo-32911: Add the historical note about the magic number. (GH-7273) 2018-05-31 09:11:55 +03:00
Serhiy Storchaka 73cbe7a01a
bpo-32911: Revert bpo-29463. (GH-7121) (GH-7197)
Remove the docstring attribute of AST types and restore docstring
expression as a first stmt in their body.

Co-authored-by: INADA Naoki <methane@users.noreply.github.com>
2018-05-29 12:04:55 +03:00
Zackery Spytz f303639e3a bpo-33270: Intern names for all anonymous code objects (#6472) 2018-04-16 01:12:29 +03:00
Brett Cannon 9e2be60634
bpo-33169: Remove values of `None` from sys.path_importer_cache when invalidating caches (GH-6402)
An entry of None in sys.path_importer_cache represents a negative/missing finder for a path, so clearing it out makes sense.
2018-04-06 16:10:18 -07:00
Serhiy Storchaka 702f8f3611
bpo-33041: Rework compiling an "async for" loop. (#6142)
* Added new opcode END_ASYNC_FOR.
* Setting global StopAsyncIteration no longer breaks "async for" loops.
* Jumping into an "async for" loop is now disabled.
* Jumping out of an "async for" loop no longer corrupts the stack.
* Simplify the compiler.
2018-03-23 14:34:35 +02:00
Serhiy Storchaka 520b7ae27e
bpo-17611. Move unwinding of stack for "pseudo exceptions" from interpreter to compiler. (GH-5006)
Co-authored-by: Mark Shannon <mark@hotpy.org>
Co-authored-by: Antoine Pitrou <antoine@python.org>
2018-02-22 23:33:30 +02:00
Serhiy Storchaka 4af8fd5614
bpo-32838: Fix Python versions in the table of magic numbers. (#5658) 2018-02-22 22:26:23 +02:00
Barry Warsaw bbbcf8693b
bpo-32303 - Consistency fixes for namespace loaders (#5481)
* Make sure ``__spec__.loader`` matches ``__loader__`` for namespace packages.
* Make sure ``__spec__.origin` matches ``__file__`` for namespace packages.

https://bugs.python.org/issue32303
https://bugs.python.org/issue32305
2018-02-02 15:15:58 -05:00
Mark Shannon 332cd5ee4f bpo-32550. Remove the STORE_ANNOTATION bytecode. (GH-5181) 2018-01-29 16:41:04 -08:00
Barry Warsaw 5ec0feeeec
Implement the get_resource_reader() API for file system imports (#5168) 2018-01-15 15:07:11 -08:00
Serhiy Storchaka d4864c61e3
bpo-24340: Fix estimation of the code stack size. (#5076) 2018-01-09 21:54:52 +02:00
Serhiy Storchaka 15a8728415
bpo-29469: Optimize literal lists and sets iterating on the AST level. (#4866) 2017-12-14 20:24:31 +02:00
INADA Naoki 7ea143ae79
bpo-29469: Move constant folding to AST optimizer (GH-2858) 2017-12-14 16:47:20 +09:00
Benjamin Peterson 42aa93b8ff
closes bpo-31650: PEP 552 (Deterministic pycs) implementation (#4575)
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.
2017-12-09 10:26:52 -08:00
Yury Selivanov 02e82a0596 bpo-31709: Update importlib magic (#3906) 2017-10-06 10:18:10 -04:00
Antoine Pitrou 88c60c9668 Trivial cleanups following bpo-31370 (#3649)
* Trivial cleanups following bpo-31370

* Also cleanup the "importlib._bootstrap_external" module
2017-09-18 23:50:44 +02:00
Serhiy Storchaka 36ff451eba bpo-30501: Make the compiler producing optimized code for condition expressions. (#1851) 2017-06-11 14:50:22 +03:00
Serhiy Storchaka 55fe1ae970 bpo-30022: Get rid of using EnvironmentError and IOError (except test… (#1051) 2017-04-16 10:46:38 +03:00
INADA Naoki cb41b2766d bpo-29463: Add docstring field to some AST nodes. (#46)
* bpo-29463: Add docstring field to some AST nodes.

ClassDef, ModuleDef, FunctionDef, and AsyncFunctionDef has docstring
field for now.  It was first statement of there body.

* fix document.  thanks travis!

* doc fixes
2017-02-22 16:31:59 +01:00
Yury Selivanov f2392133eb Issue #26110: Add LOAD_METHOD/CALL_METHOD opcodes.
Special thanks to INADA Naoki for pushing the patch through
the last mile, Serhiy Storchaka for reviewing the code, and to
Victor Stinner for suggesting the idea (originally implemented
in the PyPy project).
2016-12-13 19:03:51 -05:00
Steve Dower 10beb3cfef Issue #28896: Disable WindowsRegistryFinder by default. 2016-12-12 11:17:59 -08:00
Nick Coghlan 19d246745d Issue #23722: improve __classcell__ compatibility
Handling zero-argument super() in __init_subclass__ and
__set_name__ involved moving __class__ initialisation to
type.__new__. This requires cooperation from custom
metaclasses to ensure that the new __classcell__ entry
is passed along appropriately.

The initial implementation of that change resulted in abruptly
broken zero-argument super() support in metaclasses that didn't
adhere to the new requirements (such as Django's metaclass for
Model definitions).

The updated approach adopted here instead emits a deprecation
warning for those cases, and makes them work the same way they
did in Python 3.5.

This patch also improves the related class machinery documentation
to cover these details and to include more reader-friendly
cross-references and index entries.
2016-12-05 16:47:55 +10:00
Serhiy Storchaka 7db3c48833 Issue #28517: Fixed of-by-one error in the peephole optimizer that caused
keeping unreachable code.
2016-10-25 09:30:43 +03:00
Serhiy Storchaka 7344285c19 Issue #28257: Improved error message when pass a non-iterable as
a var-positional argument.  Added opcode BUILD_TUPLE_UNPACK_WITH_CALL.
2016-10-02 10:33:46 +03:00
Serhiy Storchaka 3738c2d8ae Issue #27942: String constants now interned recursively in tuples and frozensets. 2016-09-30 10:23:01 +03:00
Serhiy Storchaka 00a0fc1144 Issue #27942: String constants now interned recursively in tuples and frozensets. 2016-09-30 10:07:26 +03:00
Serhiy Storchaka b72810583e Issue #27213: Fixed different issues with reworked CALL_FUNCTION* opcodes.
* BUILD_TUPLE_UNPACK and BUILD_MAP_UNPACK_WITH_CALL no longer generated with
  single tuple or dict.
* Restored more informative error messages for incorrect var-positional and
  var-keyword arguments.
* Removed code duplications in _PyEval_EvalCodeWithName().
* Removed redundant runtime checks and parameters in _PyStack_AsDict().
* Added a workaround and enabled previously disabled test in test_traceback.
* Removed dead code from the dis module.
2016-09-12 00:52:40 +03:00
Nick Coghlan 944368e1cc Issue #23722: Initialize __class__ from type.__new__()
The __class__ cell used by zero-argument super() is now initialized
from type.__new__ rather than __build_class__, so class methods
relying on that will now work correctly when called from metaclass
methods during class creation.

Patch by Martin Teichmann.
2016-09-11 14:45:49 +10:00