old_contents: from i3pystatus import IntervalModule
  
  class Pianobar(IntervalModule):
      """
      Shows the title and artist name of the current music
  
      In pianobar config file must be setted the fifo and event_command options 
      (see man pianobar for more information)
  
      Mouse events:
      - Left click play/pauses
      - Right click plays next song
      - Scroll up/down changes volume
      """
  
      settings = (
          ("format"),
          ("songfile", "File generated by pianobar eventcmd"),
          ("ctlfile", "Pianobar fifo file"),
          ("color", "The color of the text"),
      )
      format = "{songtitle} -- {songartist}"
      required = ("format", "songfile", "ctlfile")
      color = "#FFFFFF"
  
      def run(self):
          with open(self.songfile, "r") as f:
              contents = f.readlines() 
  
          sn = contents[0].strip()
          sa = contents[1].strip()
  
          self.output = {
              "full_text": self.format.format(songtitle=sn, songartist=sa),
              "color": self.color
          }
  
      def on_leftclick(self):
          open(self.ctlfile,"w").write("p")
  
      def on_rightclick(self):
          open(self.ctlfile,"w").write("n")
  
      def on_upscroll(self):
          open(self.ctlfile,"w").write(")")
  
      def on_downscroll(self):
          open(self.ctlfile,"w").write("(")
  
new_contents: from i3pystatus import IntervalModule
  
  
  class Pianobar(IntervalModule):
      """
      Shows the title and artist name of the current music
  
      In pianobar config file must be setted the fifo and event_command options
      (see man pianobar for more information)
  
      Mouse events:
      - Left click play/pauses
      - Right click plays next song
      - Scroll up/down changes volume
      """
  
      settings = (
          ("format"),
          ("songfile", "File generated by pianobar eventcmd"),
          ("ctlfile", "Pianobar fifo file"),
          ("color", "The color of the text"),
      )
      format = "{songtitle} -- {songartist}"
      required = ("format", "songfile", "ctlfile")
      color = "#FFFFFF"
  
      def run(self):
          with open(self.songfile, "r") as f:
              contents = f.readlines()
  
          sn = contents[0].strip()
          sa = contents[1].strip()
  
          self.output = {
              "full_text": self.format.format(songtitle=sn, songartist=sa),
              "color": self.color
          }
  
      def on_leftclick(self):
          open(self.ctlfile, "w").write("p")
  
      def on_rightclick(self):
          open(self.ctlfile, "w").write("n")
  
      def on_upscroll(self):
          open(self.ctlfile, "w").write(")")
  
      def on_downscroll(self):
          open(self.ctlfile, "w").write("(")
  
subject: Fix blank lines and whitespaces