diff --git a/src/python/of12/instruction.py b/src/python/of12/instruction.py
new file mode 100644
index 0000000..a945525
--- /dev/null
+++ b/src/python/of12/instruction.py
@@ -0,0 +1,143 @@
+
+# Python OpenFlow instruction wrapper classes
+
+from cstruct import *
+from action_list import action_list
+
+
+
+class instruction_write_metadata(ofp_instruction_write_metadata):
+    """
+    Wrapper class for write_metadata instruction object
+
+    Data members inherited from ofp_instruction_write_metadata:
+    @arg type
+    @arg len
+    @arg metadata
+    @arg metadata_mask
+
+    """
+    def __init__(self):
+        ofp_instruction_write_metadata.__init__(self)
+        self.type = OFPIT_WRITE_METADATA
+        self.len = self.__len__()
+    def show(self, prefix=''):
+        outstr = prefix + "instruction_write_metadata\n"
+        outstr += ofp_instruction_write_metadata.show(self, prefix)
+        return outstr
+
+
+class instruction_goto_table(ofp_instruction_goto_table):
+    """
+    Wrapper class for goto_table instruction object
+
+    Data members inherited from ofp_instruction_goto_table:
+    @arg type
+    @arg len
+    @arg table_id
+
+    """
+    def __init__(self):
+        ofp_instruction_goto_table.__init__(self)
+        self.type = OFPIT_GOTO_TABLE
+        self.len = self.__len__()
+    def show(self, prefix=''):
+        outstr = prefix + "instruction_goto_table\n"
+        outstr += ofp_instruction_goto_table.show(self, prefix)
+        return outstr
+
+
+class instruction_write_actions(ofp_instruction_actions):
+    """
+    Wrapper class for write_actions instruction object
+
+    Data members inherited from ofp_instruction_actions:
+    @arg type
+    @arg len
+
+    """
+    def __init__(self):
+        ofp_instruction_actions.__init__(self)
+        self.type = OFPIT_WRITE_ACTIONS
+        self.actions = action_list()
+        self.len = self.__len__()
+    def show(self, prefix=''):
+        outstr = prefix + "instruction_write_actions\n"
+        outstr += ofp_instruction_actions.show(self, prefix)
+        outstr += self.actions.show(prefix)
+        return outstr
+    def unpack(self, binary_string):
+        binary_string = ofp_instruction_actions.unpack(self, binary_string)
+        bytes = self.len - OFP_INSTRUCTION_ACTIONS_BYTES
+        self.actions = action_list()
+        binary_string = self.actions.unpack(binary_string, bytes=bytes)
+        return binary_string
+    def pack(self):
+        self.len = self.__len__()
+        packed = ""
+        packed += ofp_instruction_actions.pack(self)
+        packed += self.actions.pack()
+        return packed
+    def __len__(self):
+        return ofp_instruction_actions.__len__(self) + self.actions.__len__()
+
+
+class instruction_apply_actions(ofp_instruction_actions):
+    """
+    Wrapper class for apply_actions instruction object
+
+    Data members inherited from ofp_instruction_actions:
+    @arg type
+    @arg len
+
+    """
+    def __init__(self):
+        ofp_instruction_actions.__init__(self)
+        self.type = OFPIT_APPLY_ACTIONS
+        self.actions = action_list()
+        self.len = self.__len__()
+    def show(self, prefix=''):
+        outstr = prefix + "instruction_apply_actions\n"
+        outstr += ofp_instruction_actions.show(self, prefix)
+        outstr += self.actions.show(prefix)
+        return outstr
+    def unpack(self, binary_string):
+        binary_string = ofp_instruction_actions.unpack(self, binary_string)
+        bytes = self.len - OFP_INSTRUCTION_ACTIONS_BYTES
+        self.actions = action_list()
+        binary_string = self.actions.unpack(binary_string, bytes=bytes)
+        return binary_string
+    def pack(self):
+        self.len = self.__len__()
+        packed = ""
+        packed += ofp_instruction_actions.pack(self)
+        packed += self.actions.pack()
+        return packed
+    def __len__(self):
+        return ofp_instruction_actions.__len__(self) + self.actions.__len__()
+
+
+class instruction_clear_actions(ofp_instruction):
+    """
+    Wrapper class for clear_actions instruction object
+
+    Data members inherited from ofp_instruction:
+    @arg type
+    @arg len
+
+    """
+    def __init__(self):
+        ofp_instruction.__init__(self)
+        self.type = OFPIT_CLEAR_ACTIONS
+        self.len = self.__len__()
+    def show(self, prefix=''):
+        outstr = prefix + "instruction_clear_actions\n"
+        outstr += ofp_instruction.show(self, prefix)
+        return outstr
+
+instruction_class_list = (
+    instruction_apply_actions,
+    instruction_clear_actions,
+    instruction_goto_table,
+    instruction_write_actions,
+    instruction_write_metadata)