python / cpython

Use Py_ssize_t type rather than int, to store lengths in
unionobject.c. Fix the warning:

Objects\unionobject.c(205,1): warning C4244: 'initializing':
conversion from 'Py_ssize_t' to 'int', possible loss of data

Same changes as #22276 squashed to a single commit. Just hoping to get Travis to cooperate by opening a new PR...

Automerge-Triggered-By: @vsajip

)

* Account for control blocks in 'except' in compiler. Fixes #39934.

'Python Shell' may have contributed to some beginners confusing 'IDLE' with ' Python'.

Use Py_ssize_t type rather than int, to store lengths in
unionobject.c. Fix warnings:

Objects\unionobject.c(189,71): warning C4244: '+=':
conversion from 'Py_ssize_t' to 'int', possible loss of data

Objects\unionobject.c(182,1): warning C4244: 'initializing':
conversion from 'Py_ssize_t' to 'int', possible loss of data

Objects\unionobject.c(205,1): warning C4244: 'initializing':
conversion from 'Py_ssize_t' to 'int', possible loss of data

Objects\unionobject.c(437,1): warning C4244: 'initializing':
conversion from 'Py_ssize_t' to 'int', possible loss of data

Fix warning:

Objects\exceptions.c(2324,56): warning C4098:
'MemoryError_dealloc': 'void' function returning a value

Add PyDateTime_DATE_GET_TZINFO() and PyDateTime_TIME_GET_TZINFO()
macros.

…rser.read (GH-15177)

Co-Authored-By: Kyle Stanley <[email protected]>
Co-Authored-By: Paul Ganssle <[email protected]>

Use _PyType_HasFeature() in the _io module and in structseq
implementation. Replace PyType_HasFeature() opaque function call with
_PyType_HasFeature() inlined function.

Explicitly cast a difference of two pointers to int:
PyFrameObject.f_stackdepth is an int.

Add explicit casts to fix compiler warnings in
fold_tuple_on_constants().

The limit of constants per code is now INT_MAX, rather than UINT_MAX.

Fix PyUnicode_InternInPlace() when the INTERNED_STRINGS macro is not
defined (when the EXPERIMENTAL_ISOLATED_SUBINTERPRETERS macro is
defined).

Remove the global _Py_CheckRecursionLimit variable: it has been
replaced by ceval.recursion_limit of the PyInterpreterState
structure.

There is no need to keep the variable for the stable ABI, since
Py_EnterRecursiveCall() and Py_LeaveRecursiveCall() were not usable
in Python 3.8 and older: these macros accessed PyThreadState members,
whereas the PyThreadState structure is opaque in the limited C API.

…GH-22328)

Co-authored-by: Victor Stinner <[email protected]>

…-22220)

…e names. (GH-22368)

use `str.__str__` for `StrEnum` so that `str(StrEnum.member)` is the same as directly accessing the string value of the `StrEnum` member

…mentedType` (GH-22336)

closes issue 41810

…n_module (#21956)

Closes bpo issue 41602

* use new StrEnum to ensure all members are strings

…H-22358)

It now accepts "empty" statements (only whitespaces and comments)
and rejects misindentent statements.

The marker was added to the language in 3.8 and
3.7 only gets security patches.

`StrEnum` ensures that its members were already strings, or intended to
be strings.

Fix the compiler warning:

format specifies type `wint_t` (aka `int`) but the argument has type `unsigned int`