diff --git a/src/libpython_clj2/python/bridge_as_python.clj b/src/libpython_clj2/python/bridge_as_python.clj
index 676e792..9754c08 100644
--- a/src/libpython_clj2/python/bridge_as_python.clj
+++ b/src/libpython_clj2/python/bridge_as_python.clj
@@ -122,7 +122,7 @@
"__setitem__" (as-tuple-instance-fn #(.put (self->map %1) (py-base/as-jvm %2) %3))
"__delitem__" (as-tuple-instance-fn #(.remove (self->map %1) (py-base/as-jvm %2)))
"__hash__" (as-tuple-instance-fn #(.hashCode (self->map %1)))
- "__iter__" (as-tuple-instance-fn #(.iterator ^Iterable (keys (self->map %1))))
+ "__iter__" (as-tuple-instance-fn #(.iterator ^Iterable (or (keys (self->map %1)) [])))
"__len__" (as-tuple-instance-fn #(.size (self->map %1)))
"__str__" (as-tuple-instance-fn #(.toString (self->map %1)))
"clear" (as-tuple-instance-fn #(.clear (self->map %1)))
diff --git a/test/libpython_clj2/python_test.clj b/test/libpython_clj2/python_test.clj
index bc50c6d..7f1b270 100644
--- a/test/libpython_clj2/python_test.clj
+++ b/test/libpython_clj2/python_test.clj
@@ -7,7 +7,8 @@
[tech.v3.datatype.functional :as dfn]
[tech.v3.datatype.ffi :as dt-ffi]
[tech.v3.tensor :as dtt]
- [clojure.test :refer :all])
+ [clojure.test :refer :all]
+ libpython-clj2.python.bridge-as-python)
(:import [java.io StringWriter]
[java.util Map List]
[tech.v3.datatype.ffi Pointer]))
@@ -422,6 +423,10 @@ class Foo:
(is (= [5 2]
(py/->jvm (py/get-attr pp "shape"))))))
+(deftest iter-should-not-npe
+ ;; credit Carsten Behring
+ (is (true? (boolean (py. (libpython-clj2.python.bridge-as-python/map-as-python {}) __iter__)))))
+
(comment
(require '[libpython-clj.require :refer [require-python]])
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