1 files changed, 42 insertions, 0 deletions
diff --git a/lib/Python/Lib/PIL/ImageSequence.py b/lib/Python/Lib/PIL/ImageSequence.py
new file mode 100644
index 000000000..dd01e2902
--- /dev/null
+++ b/lib/Python/Lib/PIL/ImageSequence.py
@@ -0,0 +1,42 @@
+#
+# The Python Imaging Library.
+# $Id$
+#
+# sequence support classes
+#
+# history:
+# 1997-02-20 fl     Created
+#
+# Copyright (c) 1997 by Secret Labs AB.
+# Copyright (c) 1997 by Fredrik Lundh.
+#
+# See the README file for information on usage and redistribution.
+#
+
+##
+
+
+class Iterator:
+    """
+    This class implements an iterator object that can be used to loop
+    over an image sequence.
+
+    You can use the ``[]`` operator to access elements by index. This operator
+    will raise an :py:exc:`IndexError` if you try to access a nonexistent
+    frame.
+
+    :param im: An image object.
+    """
+
+    def __init__(self, im):
+        if not hasattr(im, "seek"):
+            raise AttributeError("im must have seek method")
+        self.im = im
+
+    def __getitem__(self, ix):
+        try:
+            if ix:
+                self.im.seek(ix)
+            return self.im
+        except EOFError:
+            raise IndexError  # end of sequence