From: Larry Hastings <larry@hastings.org>
Date: Fri, 25 May 2012 05:58:30 +0000 (-0700)
Subject: Issue #14889: PyBytes_FromObject(bytes) now just increfs and returns.
X-Git-Tag: v3.3.0a4~79
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=ca28e99202cb31506c071792e463afbcdb5738f4;p=python

Issue #14889: PyBytes_FromObject(bytes) now just increfs and returns.
Previously, if you passed in a bytes object, it would create a whole
new object.
---

diff --git a/Objects/bytesobject.c b/Objects/bytesobject.c
index efe6ef87b3..14bd8e68c5 100644
--- a/Objects/bytesobject.c
+++ b/Objects/bytesobject.c
@@ -2577,6 +2577,12 @@ PyBytes_FromObject(PyObject *x)
         PyErr_BadInternalCall();
         return NULL;
     }
+
+    if (PyBytes_CheckExact(x)) {
+        Py_INCREF(x);
+        return x;
+    }
+
     /* Use the modern buffer interface */
     if (PyObject_CheckBuffer(x)) {
         Py_buffer view;