scapy_server fix Python3 issue

Change-Id: I39c0590673fd481fd6cf01ea6c0657a586c3e0a8
Signed-off-by: Yaroslav Brustinov <[email protected]>

diff --git a/scripts/automation/trex_control_plane/stl/services/scapy_server/scapy_service.py b/scripts/automation/trex_control_plane/stl/services/scapy_server/scapy_service.py
index e5f1b20..654b98f 100755 (executable)
--- a/scripts/automation/trex_control_plane/stl/services/scapy_server/scapy_service.py
+++ b/scripts/automation/trex_control_plane/stl/services/scapy_server/scapy_service.py
@@ -451,7 +451,7 @@ class Scapy_service(Scapy_service_api):
     def _append_intructions_help(self):
         for instruction_meta in self.field_engine_instructions_meta:
             clazz = eval(instruction_meta['id'])
-            instruction_meta['help'] = base64.b64encode(getdoc(clazz.__init__)).decode('ascii')
+            instruction_meta['help'] = base64.b64encode(getdoc(clazz.__init__).encode()).decode('ascii')
 
     def _all_protocol_structs(self):
         old_stdout = sys.stdout