You have to load it as an additional file at simulation start, see 
https://sumo.dlr.de/docs/SUMO.html#format_of_additional_files
<https://sumo.dlr.de/docs/SUMO.html#format_of_additional_files>
 
 
 
-----Original-Nachricht-----
Betreff: Re: [sumo-user] Traci importing a new traffic light program
Datum: 2019-10-24T11:47:27+0200
Von: "Roman, Charlotte" <[email protected]>
An: "Sumo project User discussions" <[email protected]>
 
 
 
I know that that is the correct function to use but I don't know how to use 
the program file as input.
 
Kind regards,
 
Charlotte
 
 
University of Warwick | MathSys CDT
 
------------------------------------------------------------------------
From: [email protected] <[email protected]> on 
behalf of Jakob Erdmann <[email protected]>
Sent: Wednesday, October 23, 2019 4:50 PM
To: Sumo project User discussions <[email protected]>
Subject: Re: [sumo-user] Traci importing a new traffic light program
 
traci.trafficlight.setProgram

Am Mi., 23. Okt. 2019 um 16:56 Uhr schrieb Roman, Charlotte <
[email protected] <mailto:[email protected]> >:
  I have written a program like that and saved it as a file, I'm just not
  sure how to call the program using traci.
   
  Kind regards,
   
  Charlotte
   
   
  ----------------------------------------------------------------------
  From: [email protected]
  <mailto:[email protected]> <[email protected]
  <mailto:[email protected]> > on behalf of Jakob Erdmann <
  [email protected] <mailto:[email protected]> >
  Sent: Wednesday, October 23, 2019 3:49 PM
  To: Sumo project User discussions <[email protected]
  <mailto:[email protected]> >
  Subject: Re: [sumo-user] Traci importing a new traffic light program
   
  see 
  
https://sumo.dlr.de/docs/Simulation/Traffic_Lights.html#defining_new_tls-programs
  
<https://sumo.dlr.de/docs/Simulation/Traffic_Lights.html#defining_new_tls-programs>

  Am Mi., 23. Okt. 2019 um 16:46 Uhr schrieb priyank soni <
  [email protected] <mailto:[email protected]> >:
    Write this piece of code in your script. 
    Or read relevant values from external. xml 
    file and feed here. 

    On Wed 23 Oct, 2019, 7:58 PM Roman, Charlotte, <
    [email protected] <mailto:[email protected]> > wrote:
      Hi all,
       
      I want to know how to load an additional file with a traffic light
      program to change just one of the traffic lights using traci. I have
      a network with 4 traffic lights in a grid and I want to change just
      one of them to a different program. I can't change it in the net file
      because I initialise the traffic light program separate to this. 
       
      I want to do something like this:
       
      newprogram = 'myfiles/differenttlprogram.xml'
       
      traci.trafficlight.setProgram(tl_1, newprogram)
       
      but I'm not sure how to get the syntax right for importing the
      additional file. Thanks for your help!
       
      Kind regards,
       
      Charlotte
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