Currently trying to fix the ALREADY_HANDLED error

README.md

@@ -8,3 +8,6 @@ Making use of several pieces of software, currently:
 - Python 3.10.4
 - Mininet
 
+Datasets:
+- First dataset taken from (dataset-small.csv): https://www.researchgate.net/publication/324716038_SOFTWARE-DEFINED_SECURITY 
+- Second dataset taken from (dataset-large.csv): https://github.com/dz43developer/sdn-network-ddos-detection-using-machine-learning 

controller.py

@@ -6,15 +6,50 @@
 The top line makes it possible to run the file as a script invoking the interpreter implicitly.
 """
 #https://ryu.readthedocs.io/en/latest/writing_ryu_app.html
-from ryu.base import app_manager # central management of Ryu apps
+# Theses are imports from ~./local/lib/python3.10/site-packages/ryu and then the necessary things
+# https://github.com/pymedusa/Medusa/issues/10253
+import collections
+try:
+    from collections import abc
+    collections.MutableMapping = abc.MutableMapping
+except:
+    pass
+
+from ryu.base import app_manager
 from ryu.controller import ofp_event
 from ryu.controller.handler import MAIN_DISPATCHER, CONFIG_DISPATCHER
 from ryu.controller.handler import set_ev_cls
-from ryu.ofproto import ofproto_v1_3
+from ryu.ofproto import ofproto_v1_5
 from ryu.lib.packet import packet, ethernet, ether_types, in_proto, ipv4, icmp, tcp, udp
 
 
 __author__ = "Alex Jones"
 __maintainer__ = "Alex Jones"
 __email__ = "[email protected]"
-__status__ = "Production"
+__status__ = "Production"
+
+class RyuController(app_manager.RyuApp):
+    OFP_VERSIONS = [ofproto_v1_5.OFP_VERSION]
+
+    def __init__(self, *args, **kwargs):
+        super(RyuController, self).__init__(*args,**kwargs)
+        self.mac_to_port = {}
+
+    # Decorated event handler effectively, see docs above, openflow protocol api and then the related messages and structures version
+    @set_ev_cls(ofp_event.EventOFPSwitchFeatures, CONFIG_DISPATCHER)
+    def switch_features_handler(self,ev):
+        msg = ev.msg
+
+        self.logger.debug(
+            'OFPSwitchFeatures received: '
+            'datapath_id=0x%016x n_buffers=%d '
+            'n_tables=%d auxiliary_id=%d '
+            'capabilities=0x%08x',
+            msg.datapath_id, msg.n_buffers, msg._tables, msg.auxiliary_id, msg.capabilities
+        )
+        datapath = msg.datapath
+        ofproto = datapath.ofproto
+        parser = datapath.ofproto_parser
+
+        match = parser.OFPMatch()
+        actions = [parser.OFPActionOutput(ofproto.OFPP_CONTROLLER,ofproto.OFPCL_NO_BUFFER)]