Old style exceptions are Python 3 syntax errors

Tools/run-clang-tidy.py

@@ -108,7 +108,7 @@ def run_tidy(args, tmpdir, build_path, queue):
 
     try:
       subprocess.check_call(invocation, stdin=None, stdout=open(os.devnull, 'wb'), stderr=subprocess.STDOUT)
-    except subprocess.CalledProcessError, e:
+    except subprocess.CalledProcessError as e:
       sys.stdout.write(' '.join(invocation) + '\n')
       subprocess.call(invocation)
       global tidy_failures

Tools/uorb_graph/create.py

@@ -633,6 +633,3 @@ elif args.output == 'graphviz':
     output_graphviz.write(args.file+'_pubs.fv', show_subscriptions=False, engine=engine)
 else:
     print('Error: unknown output format '+args.output)
-
-
-

integrationtests/python_src/px4_it/dronekit/MissionCheck.py

@@ -126,7 +126,7 @@ home_position_set = False
 @vehicle.on_message('MISSION_CURRENT')
 def listener(self, name, mission_current):
     global current_sequence, current_sequence_changed
-    if (current_sequence <> mission_current.seq):
+    if (current_sequence != mission_current.seq):
         current_sequence = mission_current.seq;
         current_sequence_changed = True
         print('current mission sequence: %s' % mission_current.seq)
@@ -135,7 +135,7 @@ def listener(self, name, mission_current):
 @vehicle.on_message('EXTENDED_SYS_STATE')
 def listener(self, name, extended_sys_state):
     global current_landed_state
-    if (current_landed_state <> extended_sys_state.landed_state):
+    if (current_landed_state != extended_sys_state.landed_state):
         current_landed_state = extended_sys_state.landed_state;
 
 #Create a message listener for home position fix