diff --git a/src/python/of12/action.py b/src/python/of12/action.py
new file mode 100644
index 0000000..d67a16c
--- /dev/null
+++ b/src/python/of12/action.py
@@ -0,0 +1,352 @@
+
+# Python OpenFlow action wrapper classes
+
+from cstruct import *
+from match import roundup
+from match_list import match_list
+
+class action_pop_mpls(ofp_action_pop_mpls):
+    """
+    Wrapper class for pop_mpls action object
+
+    Data members inherited from ofp_action_pop_mpls:
+    @arg type
+    @arg len
+    @arg ethertype
+
+    """
+    def __init__(self):
+        ofp_action_pop_mpls.__init__(self)
+        self.type = OFPAT_POP_MPLS
+        self.len = self.__len__()
+    def show(self, prefix=''):
+        outstr = prefix + "action_pop_mpls\n"
+        outstr += ofp_action_pop_mpls.show(self, prefix)
+        return outstr
+
+
+class action_push_vlan(ofp_action_push):
+    """
+    Wrapper class for push_vlan action object
+
+    Data members inherited from ofp_action_push:
+    @arg type
+    @arg len
+    @arg ethertype
+
+    """
+    def __init__(self):
+        ofp_action_push.__init__(self)
+        self.type = OFPAT_PUSH_VLAN
+        self.len = self.__len__()
+    def show(self, prefix=''):
+        outstr = prefix + "action_push_vlan\n"
+        outstr += ofp_action_push.show(self, prefix)
+        return outstr
+
+
+class action_experimenter(ofp_action_experimenter_header):
+    """
+    Wrapper class for experimenter action object
+
+    Data members inherited from ofp_action_experimenter_header:
+    @arg type
+    @arg len
+    @arg experimenter
+
+    """
+    def __init__(self):
+        ofp_action_experimenter_header.__init__(self)
+        self.type = OFPAT_EXPERIMENTER
+        self.len = self.__len__()
+    def show(self, prefix=''):
+        outstr = prefix + "action_experimenter\n"
+        outstr += ofp_action_experimenter_header.show(self, prefix)
+        return outstr
+
+
+class action_dec_mpls_ttl(ofp_action_header):
+    """
+    Wrapper class for dec_mpls_ttl action object
+
+    Data members inherited from ofp_action_header:
+    @arg type
+    @arg len
+
+    """
+    def __init__(self):
+        ofp_action_header.__init__(self)
+        self.type = OFPAT_DEC_MPLS_TTL
+        self.len = self.__len__()
+    def show(self, prefix=''):
+        outstr = prefix + "action_dec_mpls_ttl\n"
+        outstr += ofp_action_header.show(self, prefix)
+        return outstr
+
+
+class action_set_nw_ttl(ofp_action_nw_ttl):
+    """
+    Wrapper class for set_nw_ttl action object
+
+    Data members inherited from ofp_action_nw_ttl:
+    @arg type
+    @arg len
+    @arg nw_ttl
+
+    """
+    def __init__(self):
+        ofp_action_nw_ttl.__init__(self)
+        self.type = OFPAT_SET_NW_TTL
+        self.len = self.__len__()
+    def show(self, prefix=''):
+        outstr = prefix + "action_set_nw_ttl\n"
+        outstr += ofp_action_nw_ttl.show(self, prefix)
+        return outstr
+
+
+class action_copy_ttl_in(ofp_action_header):
+    """
+    Wrapper class for copy_ttl_in action object
+
+    Data members inherited from ofp_action_header:
+    @arg type
+    @arg len
+
+    """
+    def __init__(self):
+        ofp_action_header.__init__(self)
+        self.type = OFPAT_COPY_TTL_IN
+        self.len = self.__len__()
+    def show(self, prefix=''):
+        outstr = prefix + "action_copy_ttl_in\n"
+        outstr += ofp_action_header.show(self, prefix)
+        return outstr
+
+
+class action_group(ofp_action_group):
+    """
+    Wrapper class for group action object
+
+    Data members inherited from ofp_action_group:
+    @arg type
+    @arg len
+    @arg group_id
+
+    """
+    def __init__(self):
+        ofp_action_group.__init__(self)
+        self.type = OFPAT_GROUP
+        self.len = self.__len__()
+    def show(self, prefix=''):
+        outstr = prefix + "action_group\n"
+        outstr += ofp_action_group.show(self, prefix)
+        return outstr
+    def __len__(self):
+        return roundup(4 + 4,8)
+
+
+class action_set_queue(ofp_action_set_queue):
+    """
+    Wrapper class for set_queue action object
+
+    Data members inherited from ofp_action_set_queue:
+    @arg type
+    @arg len
+    @arg queue_id
+
+    """
+    def __init__(self):
+        ofp_action_set_queue.__init__(self)
+        self.type = OFPAT_SET_QUEUE
+        self.len = self.__len__()
+    def show(self, prefix=''):
+        outstr = prefix + "action_set_queue\n"
+        outstr += ofp_action_set_queue.show(self, prefix)
+        return outstr
+
+
+class action_push_mpls(ofp_action_push):
+    """
+    Wrapper class for push_mpls action object
+
+    Data members inherited from ofp_action_push:
+    @arg type
+    @arg len
+    @arg ethertype
+
+    """
+    def __init__(self):
+        ofp_action_push.__init__(self)
+        self.type = OFPAT_PUSH_MPLS
+        self.len = self.__len__()
+    def show(self, prefix=''):
+        outstr = prefix + "action_push_mpls\n"
+        outstr += ofp_action_push.show(self, prefix)
+        return outstr
+
+
+class action_copy_ttl_out(ofp_action_header):
+    """
+    Wrapper class for copy_ttl_out action object
+
+    Data members inherited from ofp_action_header:
+    @arg type
+    @arg len
+
+    """
+    def __init__(self):
+        ofp_action_header.__init__(self)
+        self.type = OFPAT_COPY_TTL_OUT
+        self.len = self.__len__()
+    def show(self, prefix=''):
+        outstr = prefix + "action_copy_ttl_out\n"
+        outstr += ofp_action_header.show(self, prefix)
+        return outstr
+
+
+class action_set_field(ofp_action_set_field):
+    """
+    Wrapper class for set_field action object
+
+    Data members inherited from ofp_action_set_field:
+    @arg type
+    @arg len
+    @arg field
+
+    """
+    def __init__(self):
+        ofp_action_set_field.__init__(self)
+        self.type = OFPAT_SET_FIELD
+        self.len = self.__len__()
+        self.field = match_list()
+        
+    def pack(self):
+        packed = ""
+        if len(self.field) <= 4:
+            packed += ofp_action_set_field.pack()
+        else:
+            self.len = len(self)
+            packed += struct.pack("!HH", self.type, self.len)
+            packed += self.field.pack()
+            padding_size = roundup(len(self.field) -4,8) -  (len(self.field) -4)
+            if padding_size:
+                padding = [0] * padding_size
+                packed += struct.pack("!" + str(padding_size) + "B", *padding)
+        return packed
+    
+    def unpack(self, binary_string):
+        if len(binary_string) <= 8:
+            binary_string = ofp_action_set_field.unpack(self)
+        else: 
+            (self.type, self.len) = struct.unpack("!HH",  binary_string[0:4])
+            binary_string = binary_string[4:]
+            binary_string = self.field.unpack(binary_string, bytes = self.len - 4)
+            padding_size = roundup(len(self.field) -4,8) -  (len(self.field) -4) 
+            if padding_size:
+                binary_string = binary_string[padding_size:]
+        return binary_string
+        
+    def show(self, prefix=''):
+        outstr = prefix + "action_set_field\n"
+        outstr += ofp_action_set_field.show(self, prefix)
+        return outstr
+    
+    def __len__(self):
+        return roundup(4 + len(self.field),8)
+         
+
+class action_set_mpls_ttl(ofp_action_mpls_ttl):
+    """
+    Wrapper class for set_mpls_ttl action object
+
+    Data members inherited from ofp_action_mpls_ttl:
+    @arg type
+    @arg len
+    @arg mpls_ttl
+
+    """
+    def __init__(self):
+        ofp_action_mpls_ttl.__init__(self)
+        self.type = OFPAT_SET_MPLS_TTL
+        self.len = self.__len__()
+    def show(self, prefix=''):
+        outstr = prefix + "action_set_mpls_ttl\n"
+        outstr += ofp_action_mpls_ttl.show(self, prefix)
+        return outstr
+
+
+class action_pop_vlan(ofp_action_header):
+    """
+    Wrapper class for pop_vlan action object
+
+    Data members inherited from ofp_action_header:
+    @arg type
+    @arg len
+
+    """
+    def __init__(self):
+        ofp_action_header.__init__(self)
+        self.type = OFPAT_POP_VLAN
+        self.len = self.__len__()
+    def show(self, prefix=''):
+        outstr = prefix + "action_pop_vlan\n"
+        outstr += ofp_action_header.show(self, prefix)
+        return outstr
+
+
+class action_dec_nw_ttl(ofp_action_header):
+    """
+    Wrapper class for dec_nw_ttl action object
+
+    Data members inherited from ofp_action_header:
+    @arg type
+    @arg len
+
+    """
+    def __init__(self):
+        ofp_action_header.__init__(self)
+        self.type = OFPAT_DEC_NW_TTL
+        self.len = self.__len__()
+    def show(self, prefix=''):
+        outstr = prefix + "action_dec_nw_ttl\n"
+        outstr += ofp_action_header.show(self, prefix)
+        return outstr
+
+
+class action_output(ofp_action_output):
+    """
+    Wrapper class for output action object
+
+    Data members inherited from ofp_action_output:
+    @arg type
+    @arg len
+    @arg port
+    @arg max_len
+
+    """
+    def __init__(self):
+        ofp_action_output.__init__(self)
+        self.type = OFPAT_OUTPUT
+        self.len = self.__len__()
+    def show(self, prefix=''):
+        outstr = prefix + "action_output\n"
+        outstr += ofp_action_output.show(self, prefix)
+        return outstr
+
+action_class_list = (
+    action_copy_ttl_in,
+    action_copy_ttl_out,
+    action_dec_mpls_ttl,
+    action_dec_nw_ttl,
+    action_experimenter,
+    action_group,
+    action_output,
+    action_pop_mpls,
+    action_pop_vlan,
+    action_push_mpls,
+    action_push_vlan,
+    action_set_field,
+    action_set_mpls_ttl,
+    action_set_nw_ttl,
+    action_set_queue)
+