From 5a6aa491056046dc8d828d7234873fecbdae8492 Mon Sep 17 00:00:00 2001
From: Wenzel Jakob <wenzel.jakob@epfl.ch>
Date: Wed, 13 Apr 2016 22:48:05 +0200
Subject: [PATCH] Added len() function

---
 include/pybind11/pytypes.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/include/pybind11/pytypes.h b/include/pybind11/pytypes.h
index 455d8931..e23df9a7 100644
--- a/include/pybind11/pytypes.h
+++ b/include/pybind11/pytypes.h
@@ -461,4 +461,11 @@ public:
     }
 };
 
+inline size_t len(handle h) {
+    ssize_t result = PyObject_Length(h.ptr());
+    if (result < 0)
+        pybind11_fail("Unable to compute length of object");
+    return (size_t) result;
+}
+
 NAMESPACE_END(pybind11)