diff --git a/samples/python/edge.py b/samples/python/edge.py
index d4e3d45f8..9413895ca 100755
--- a/samples/python/edge.py
+++ b/samples/python/edge.py
@@ -57,3 +57,4 @@ if __name__ == '__main__':
 
     # wait a key pressed to end
     cv.WaitKey(0)
+    cv.DestroyAllWindows()
diff --git a/samples/python/fback.py b/samples/python/fback.py
index b3f4f91e6..e8ac1822f 100644
--- a/samples/python/fback.py
+++ b/samples/python/fback.py
@@ -53,3 +53,4 @@ class FBackDemo:
 if __name__=="__main__":
     demo = FBackDemo()
     demo.run()
+    cv.DestroyAllWindows()
diff --git a/samples/python/ffilldemo.py b/samples/python/ffilldemo.py
index 2bf465782..339771e08 100755
--- a/samples/python/ffilldemo.py
+++ b/samples/python/ffilldemo.py
@@ -157,3 +157,4 @@ if __name__ == "__main__":
         elif c == ord('8'):
             print("8-connectivity mode is set");
             connectivity = 8;
+    cv.DestroyAllWindows()
diff --git a/samples/python/houghlines.py b/samples/python/houghlines.py
index 92e359f22..2c697a7ee 100755
--- a/samples/python/houghlines.py
+++ b/samples/python/houghlines.py
@@ -55,3 +55,4 @@ if __name__ == "__main__":
             USE_STANDARD = not USE_STANDARD
         if k == 27:
             break
+    cv.DestroyAllWindows()
diff --git a/samples/python/inpaint.py b/samples/python/inpaint.py
index dbea42e80..ce5a77ff4 100755
--- a/samples/python/inpaint.py
+++ b/samples/python/inpaint.py
@@ -66,3 +66,4 @@ if __name__=="__main__":
         if c == ord('i') or c == ord('\n'):
             cv.Inpaint(img, inpaint_mask, inpainted, 3, cv.CV_INPAINT_TELEA)
             cv.ShowImage("inpainted image", inpainted)
+    cv.DestroyAllWindows()
diff --git a/samples/python/lkdemo.py b/samples/python/lkdemo.py
index 2071023cb..1eed91ba0 100755
--- a/samples/python/lkdemo.py
+++ b/samples/python/lkdemo.py
@@ -189,3 +189,4 @@ if __name__ == '__main__':
               night_mode = not night_mode
           elif cc == ' ':
               fc = (fc + 1) % len(frames)
+    cv.DestroyAllWindows()
diff --git a/samples/python/logpolar.py b/samples/python/logpolar.py
index 0a4186220..23c14f813 100755
--- a/samples/python/logpolar.py
+++ b/samples/python/logpolar.py
@@ -42,3 +42,4 @@ if __name__ == "__main__":
     
     cv.ShowImage("original", src)
     cv.WaitKey()
+    cv.DestroyAllWindows()
diff --git a/samples/python/minarea.py b/samples/python/minarea.py
index d38a7ceaf..cfcaddd77 100755
--- a/samples/python/minarea.py
+++ b/samples/python/minarea.py
@@ -59,3 +59,4 @@ if __name__ == "__main__":
             break
 
         use_seq = not use_seq
+    cv.DestroyAllWindows()