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bpo-47152: Convert the re module into a package (GH-32177)

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The sre_* modules are now deprecated.
This commit is contained in:
Serhiy Storchaka 2022-04-02 11:35:13 +03:00 • committed by GitHub
parent 4ed8a9a589
commit 1be3260a90
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16 changed files with 2235 additions and 2182 deletions
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36
Lib/test/test_re.py
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@ -3,8 +3,8 @@ from test.support import (gc_collect, bigmemtest, _2G,
check_disallow_instantiation, is_emscripten)
import locale
import re
import sre_compile
import string
import sys
import time
import unittest
import warnings
@ -569,7 +569,7 @@ class ReTests(unittest.TestCase):
'two branches', 10)
def test_re_groupref_overflow(self):
from sre_constants import MAXGROUPS
from re._constants import MAXGROUPS
self.checkTemplateError('()', r'\g<%s>' % MAXGROUPS, 'xx',
'invalid group reference %d' % MAXGROUPS, 3)
self.checkPatternError(r'(?P<a>)(?(%d))' % MAXGROUPS,
@ -2433,7 +2433,7 @@ class ImplementationTest(unittest.TestCase):
tp.foo = 1
def test_overlap_table(self):
f = sre_compile._generate_overlap_table
f = re._compiler._generate_overlap_table
self.assertEqual(f(""), [])
self.assertEqual(f("a"), [0])
self.assertEqual(f("abcd"), [0, 0, 0, 0])
@ -2442,8 +2442,8 @@ class ImplementationTest(unittest.TestCase):
self.assertEqual(f("abcabdac"), [0, 0, 0, 1, 2, 0, 1, 0])
def test_signedness(self):
self.assertGreaterEqual(sre_compile.MAXREPEAT, 0)
self.assertGreaterEqual(sre_compile.MAXGROUPS, 0)
self.assertGreaterEqual(re._compiler.MAXREPEAT, 0)
self.assertGreaterEqual(re._compiler.MAXGROUPS, 0)
@cpython_only
def test_disallow_instantiation(self):
@ -2453,6 +2453,32 @@ class ImplementationTest(unittest.TestCase):
pat = re.compile("")
check_disallow_instantiation(self, type(pat.scanner("")))
def test_deprecated_modules(self):
deprecated = {
'sre_compile': ['compile', 'error',
'SRE_FLAG_IGNORECASE', 'SUBPATTERN',
'_compile_info'],
'sre_constants': ['error', 'SRE_FLAG_IGNORECASE', 'SUBPATTERN',
'_NamedIntConstant'],
'sre_parse': ['SubPattern', 'parse',
'SRE_FLAG_IGNORECASE', 'SUBPATTERN',
'_parse_sub'],
}
for name in deprecated:
with self.subTest(module=name):
sys.modules.pop(name, None)
with self.assertWarns(DeprecationWarning) as cm:
__import__(name)
self.assertEqual(str(cm.warnings[0].message),
f"module {name!r} is deprecated")
self.assertEqual(cm.warnings[0].filename, __file__)
self.assertIn(name, sys.modules)
mod = sys.modules[name]
self.assertEqual(mod.__name__, name)
self.assertEqual(mod.__package__, '')
for attr in deprecated[name]:
self.assertTrue(hasattr(mod, attr))
del sys.modules[name]
class ExternalTests(unittest.TestCase):