delta/cpython-git.git/Python/sysmodule.c, branch enum-lost-fixes

bpo-43916: Move the _PyStructSequence_InitType function to the internal API (GH-25854)

2021-05-03T14:50:24+00:00

bpo-43916: PyStdPrinter_Type uses Py_TPFLAGS_DISALLOW_INSTANTIATION (GH-25749)

2021-04-30T12:56:27+00:00

The PyStdPrinter_Type type now uses the
Py_TPFLAGS_DISALLOW_INSTANTIATION flag to disallow instantiation,
rather than seting a tp_init method which always fail.

Write also unit tests for PyStdPrinter_Type.

bpo-43916: Add Py_TPFLAGS_DISALLOW_INSTANTIATION type flag (GH-25721)

2021-04-30T10:46:15+00:00

Add a new Py_TPFLAGS_DISALLOW_INSTANTIATION type flag to disallow
creating type instances: set tp_new to NULL and don't create the
"__new__" key in the type dictionary.

The flag is set automatically on static types if tp_base is NULL or
&PyBaseObject_Type and tp_new is NULL.

Use the flag on the following types:

* _curses.ncurses_version type
* _curses_panel.panel
* _tkinter.Tcl_Obj
* _tkinter.tkapp
* _tkinter.tktimertoken
* _xxsubinterpretersmodule.ChannelID
* sys.flags type
* sys.getwindowsversion() type
* sys.version_info type

Update MyStr example in the C API documentation to use
Py_TPFLAGS_DISALLOW_INSTANTIATION.

Add _PyStructSequence_InitType() function to create a structseq type
with the Py_TPFLAGS_DISALLOW_INSTANTIATION flag set.

type_new() calls _PyType_CheckConsistency() at exit.

bpo-43475: Fix worst case collision behavior for NaN instances (GH-25493)

2021-04-22T15:34:57+00:00

bpo-43760: Speed up check for tracing in interpreter dispatch (#25276)

2021-04-13T10:08:14+00:00

* Remove redundant tracing_possible field from interpreter state.

* Move 'use_tracing' from tstate onto C stack, for fastest possible checking in dispatch logic.

* Add comments stressing the importance stack discipline when dealing with CFrames.

* Add NEWS

bpo-43510: Implement PEP 597 opt-in EncodingWarning. (GH-19481)

2021-03-29T03:28:14+00:00

See [PEP 597](https://www.python.org/dev/peps/pep-0597/).

* Add `-X warn_default_encoding` and `PYTHONWARNDEFAULTENCODING`.
* Add EncodingWarning
* Add io.text_encoding()
* open(), TextIOWrapper() emits EncodingWarning when encoding is omitted and warn_default_encoding is enabled.
* _pyio.TextIOWrapper() uses UTF-8 as fallback default encoding used when failed to import locale module. (used during building Python)
* bz2, configparser, gzip, lzma, pathlib, tempfile modules use io.text_encoding().
* What's new entry

bpo-37146: Deactivate opcode cache only when using huntrleaks in the test suite (GH-24643)

2021-02-28T22:41:09+00:00

bpo-43268: Pass interp rather than tstate to internal functions (GH-24580)

2021-02-19T14:10:45+00:00

Pass the current interpreter (interp) rather than the current Python
thread state (tstate) to internal functions which only use the
interpreter.

Modified functions:

* _PyXXX_Fini() and _PyXXX_ClearFreeList() functions
* _PyEval_SignalAsyncExc(), make_pending_calls()
* _PySys_GetObject(), sys_set_object(), sys_set_object_id(), sys_set_object_str()
* should_audit(), set_flags_from_config(), make_flags()
* _PyAtExit_Call()
* init_stdio_encoding()
* etc.

bpo-43268: Remove abusive usage of tstate in sysmodule.c (#24581)

2021-02-19T14:07:59+00:00

Remove explicit tstate usage in sysmodule.c when it's only used raise
exceptions: get it implicitly using PyErr_XXX() functions.

bpo-42955: Rename module_names to sys.stdlib_module_names (GH-24332)

2021-01-25T22:12:50+00:00

* Rename _Py_module_names to _Py_stdlib_module_names.
* Rename Python/module_names.h to Python/stdlib_module_names.h.