Question

I have the following function, when I call it’s printing out the mess but if the if condition is false than it’s not going the else branch, what I’m doing wrong?

def lidarMessageHandler( self, mess ):
        print( mess );
        #Check if I received the right command
        if( COMMANDTABLE[commandList[self.clientname]['lastcommand']]['id'] == mess['commandName'] ):
            print( 'if' )
            #Check if it's a blocking command            
            commandList[self.clientname]['isready'] = True
            if( self.start ):
                self.waitingForSettingsHandler( mess )
                return                           
        else:
            error = "I waited the answer for the following command %s but I received % command from %s " % self.lastCommand, mess['commandName'], self.clientname
            self.reiseError( error )
            isRunning[self.clientname] = False
            print( 'else' );

Answer 1

You probably get an exception here:

error = "I waited the answer for the following command %s but I received % command from %s " % self.lastCommand, mess['commandName'], self.clientname
                                                                         ^

You should add s:

error = "I waited the answer for the following command %s but I received %s command from %s " % self.lastCommand, mess['commandName'], self.clientname
                                                                         ^

(I assume mess['commandName'] is a string)