Fix for crashing process and restarting

config_example/config.py

 __BASEPATH__ = os.path.abspath(os.path.dirname(__file__))
 APP_NAME = "spotify"
 LOGTARGET = 'stdout'   # possible choices are: 'logfile' or 'stdout'
-LOGLVL = 'DEBUG'
+LOGLVL = 'INFO'
 
 LOGHOST = 'cutelog'
 LOGPORT = 19996

spotify.py

         logger.info("Starting Librespot...")
         self.__state_callback__ = state_callback
         self.__title_callback__ = title_callback
-        self.__process__ = subprocess.Popen(["librespot", "-v", "--name", config.DEVICE_NAME],
-                               shell=False,
-                               # We pipe the output to an internal pipe
-                               stdout=subprocess.PIPE,
-                               stderr=subprocess.STDOUT)
+        self.__start_process__()
         self.__state__ = None
         self.__preload_state__ = False
         self.__title__ = None
         self.set_state(False)
         self.set_title("")
 
+    def __start_process__(self):
+        self.__process__ = subprocess.Popen(["librespot", "-v", "--name", config.DEVICE_NAME],
+                               shell=False,
+                               # We pipe the output to an internal pipe
+                               stdout=subprocess.PIPE,
+                               stderr=subprocess.STDOUT)
+
     def run(self):
         while True:
             output = self.__process__.stdout.readline()
             # Polling returns None when the program is still running, return_code otherwise
             return_code = self.__process__.poll()
             if return_code is not None:
-                self.__process__.close()
+                #self.__process__.close()
                 # Program ended, get exit/return code
-                raise RuntimeError("Command '{}' finished with exit code {}".format(command, return_code))
-        
+                #raise RuntimeError
+                logger.exception(("Command '{}' finished with exit code {}".format(command, return_code)))
                 # If the output is not empty, feed it to the function, strip the newline first
-            if output:
+                self.__start_process__()
+                output = None
+            elif output:
                 out_txt = output.decode('utf-8').strip('\n').strip()
                 out_txt = out_txt[out_txt.find(']') + 2:]
                 #logger.debug("librespot output: %s", out_txt)