Issue #6561: '\d' regular expression should not match characters of
category [No]; only those of category [Nd]. (Backport of r74237
from py3k.)
diff --git a/Modules/_sre.c b/Modules/_sre.c
index 1aea53b..0d9ee24 100644
--- a/Modules/_sre.c
+++ b/Modules/_sre.c
@@ -172,7 +172,7 @@
#if defined(HAVE_UNICODE)
-#define SRE_UNI_IS_DIGIT(ch) Py_UNICODE_ISDIGIT((Py_UNICODE)(ch))
+#define SRE_UNI_IS_DIGIT(ch) Py_UNICODE_ISDECIMAL((Py_UNICODE)(ch))
#define SRE_UNI_IS_SPACE(ch) Py_UNICODE_ISSPACE((Py_UNICODE)(ch))
#define SRE_UNI_IS_LINEBREAK(ch) Py_UNICODE_ISLINEBREAK((Py_UNICODE)(ch))
#define SRE_UNI_IS_ALNUM(ch) Py_UNICODE_ISALNUM((Py_UNICODE)(ch))