commit b015fc86f7b1f35283804bfee788cce0a5495df7
author Kingsley M <37349466+kingdom5500@users.noreply.github.com> Fri Apr 12 16:35:39 2019 +0100
committer Steve Dower <steve.dower@microsoft.com> Fri Apr 12 08:35:39 2019 -0700
tree 71d67a16fb6f713d49f1ffbc13dc99722b3e2905
parent f13c5c8b9401a9dc19e95d8b420ee100ac022208

bpo-36549: str.capitalize now titlecases the first character instead of uppercasing it (GH-12804)

Objects/unicodeobject.c

diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index c0b345b..e00dc37 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -9675,7 +9675,7 @@
     Py_UCS4 c, mapped[3];
 
     c = PyUnicode_READ(kind, data, 0);
-    n_res = _PyUnicode_ToUpperFull(c, mapped);
+    n_res = _PyUnicode_ToTitleFull(c, mapped);
     for (j = 0; j < n_res; j++) {
         *maxchar = Py_MAX(*maxchar, mapped[j]);
         res[k++] = mapped[j];