use unicode_state empty string before unicode_init. without define WITH_DOC_STRINGS

[JunyiXie]

BPO	43687
Nosy	@vstinner, @JunyiXie
PRs	bpo-43687: use unicode_state empty string before unicode_init. without define WITH_DOC_STRINGS #25129 bpo-43687: Py_Initialize() creates singletons earlier #25147

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = <Date 2021-04-02.13:29:23.254>
created_at = <Date 2021-04-01.03:39:21.546>
labels = ['interpreter-core', '3.10', 'type-crash']
title = 'use unicode_state empty string before unicode_init. without define WITH_DOC_STRINGS'
updated_at = <Date 2021-04-02.13:29:23.253>
user = 'https://github.com/JunyiXie'

bugs.python.org fields:

activity = <Date 2021-04-02.13:29:23.253>
actor = 'vstinner'
assignee = 'none'
closed = True
closed_date = <Date 2021-04-02.13:29:23.254>
closer = 'vstinner'
components = ['Interpreter Core']
creation = <Date 2021-04-01.03:39:21.546>
creator = 'JunyiXie'
dependencies = []
files = []
hgrepos = []
issue_num = 43687
keywords = ['patch']
message_count = 3.0
messages = ['389950', '390060', '390061']
nosy_count = 2.0
nosy_names = ['vstinner', 'JunyiXie']
pr_nums = ['25129', '25147']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'crash'
url = 'https://bugs.python.org/issue43687'
versions = ['Python 3.10']

[JunyiXie]

use unicode_state empty string before unicode_init. without define WITH_DOC_STRINGS.

PyType_Ready call PyUnicode_FromString, if doc string striped, cause crash.

unicode_get_empty() must not be called before _PyUnicode_Init() or after _PyUnicode_Fini()

PyType_Ready

const char *old_doc = _PyType_DocWithoutSignature(type->tp_name,type->tp_doc);
PyObject *doc = PyUnicode_FromString(old_doc);

[vstinner]

New changeset 442ad74 by Victor Stinner in branch 'master':
bpo-43687: Py_Initialize() creates singletons earlier (GH-25147)
442ad74

[vstinner]

It's now fixed, thanks for the bug report.