spotify-playstate exits with the rest of the polybar-app if spotify is shut down

config/.scripts/playstate

@@ -1 +1 @@
-1
+0

config/.scripts/spotify-play.py

@@ -1,10 +1,31 @@
 #!/usr/bin/python
 import subprocess
 import time
+import os
+
+def find_proc(proc_name):
+    this_proc = "pythonspotify-play.py"
+    proc_path = '/proc'
+    proc = next(os.walk('{}/'.format(proc_path)))[1]
+    for process in proc:
+        cmdline_path = '{}/{}/cmdline'.format(proc_path,process)
+        try:
+            with open(cmdline_path, 'r') as cmd:
+                proc_content = cmd.readline()
+                if (proc_name in proc_content):
+                    return True
+        except FileNotFoundError:
+            pass
+    return False
+
+
+def spotify_running():
+    return find_proc('/usr/bin/spotify')
+
 
 def main():
     state = -1
-    while 1:
+    while spotify_running():
         with open('/home/tuan/.scripts/playstate', 'r') as f:
             try:
                 file_state = int(f.readline().strip('\n'))
@@ -18,7 +39,7 @@ def main():
             elif state == 1:
                 print("")
                 subprocess.run(["playerctl","play"])
-        time.sleep(0.5)
+        time.sleep(0.1)
         
 if __name__ == '__main__':
     main()