This reverts r63675 based on the discussion in this thread:
http://mail.python.org/pipermail/python-dev/2008-June/079988.html
Python 2.6 should stick with PyString_* in its codebase. The PyBytes_* names
in the spirit of 3.0 are available via a #define only. See the email thread.
diff --git a/Modules/threadmodule.c b/Modules/threadmodule.c
index 7b52f72..81bf288 100644
--- a/Modules/threadmodule.c
+++ b/Modules/threadmodule.c
@@ -190,7 +190,7 @@
Py_XINCREF(kw);
self->kw = kw;
self->dict = NULL; /* making sure */
- self->key = PyBytes_FromFormat("thread.local.%p", self);
+ self->key = PyString_FromFormat("thread.local.%p", self);
if (self->key == NULL)
goto err;