spelling mistake.
diff --git a/Objects/bytesobject.c b/Objects/bytesobject.c
index 4d54610..eb80360 100644
--- a/Objects/bytesobject.c
+++ b/Objects/bytesobject.c
@@ -2151,7 +2151,7 @@
Return a copy of B with all occurrences of subsection\n\
old replaced by new. If the optional argument count is\n\
positive, only the first count occurrences are replaced. A\n\
-negative value of count replaces all occurences");
+negative value of count replaces all occurrences");
static PyObject *
bytes_replace(PyBytesObject *self, PyObject *args)