Add var to command line

app.py

@@ -29,7 +29,7 @@ def greet(input1, input2):
     print("source_path: ", source_path)
     print("target_path: ", target_path)
 
-    command = "python hola.py -t source_path"
+    command = "python hola.py -t" + source_path
     print(command)
     time.sleep(1)
     proc = os.popen(command)