old_contents: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  import os
  import psutil
  import plugins
  
  
  class Plugin(plugins.BasePlugin):
      __name__ = 'diskusage'
  
      def run(self, config):
          disk = {}
          disk['df-psutil'] = []
          for part in psutil.disk_partitions(False):
              if os.name == 'nt':
                  if 'cdrom' in part.opts or part.fstype == '':
                      # skip cd-rom drives with no disk in it; they may raise
                      # ENOENT, pop-up a Windows GUI error for a non-ready
                      # partition or just hang.
                      continue
              try:
                  usage = psutil.disk_usage(part.mountpoint)
                  diskdata = {}
                  diskdata['info'] = part
                  for key in usage._fields:
                      diskdata[key] = getattr(usage, key)
                  disk['df-psutil'].append(diskdata)
              except:
                  pass
  
          try:
                  force_df = config.get('diskusage', 'force_df')
          except:
                  force_df = 'no'
  
          if len(disk['df-psutil']) == 0 or force_df == 'yes': 
              try:
  	            disk['df-psutil'] = []
                  df_output_lines = [s.split() for s in os.popen("df -Pl").read().splitlines()] 
                  del df_output_lines[0]
                  for row in df_output_lines:
                      if row[0] == 'tmpfs':
                          continue
                      disk['df-psutil'].append({'info': [row[0], row[5],'',''], 'total': int(row[1])*1024, 'used': int(row[2])*1024, 'free': int(row[3])*1024, 'percent': row[4][:-1]}) 
              except:
                  pass
  
          return disk
  
  
  if __name__ == '__main__':
      Plugin().execute()
new_contents: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  import os
  import psutil
  import plugins
  
  
  class Plugin(plugins.BasePlugin):
      __name__ = 'diskusage'
  
      def run(self, config):
          disk = {}
          disk['df-psutil'] = []
          for part in psutil.disk_partitions(False):
              if os.name == 'nt':
                  if 'cdrom' in part.opts or part.fstype == '':
                      # skip cd-rom drives with no disk in it; they may raise
                      # ENOENT, pop-up a Windows GUI error for a non-ready
                      # partition or just hang.
                      continue
              try:
                  usage = psutil.disk_usage(part.mountpoint)
                  diskdata = {}
                  diskdata['info'] = part
                  for key in usage._fields:
                      diskdata[key] = getattr(usage, key)
                  disk['df-psutil'].append(diskdata)
              except:
                  pass
  
          try:
                  force_df = config.get('diskusage', 'force_df')
          except:
                  force_df = 'no'
  
          if len(disk['df-psutil']) == 0 or force_df == 'yes': 
              try:
  	        disk['df-psutil'] = []
                  df_output_lines = [s.split() for s in os.popen("df -Pl").read().splitlines()] 
                  del df_output_lines[0]
                  for row in df_output_lines:
                      if row[0] == 'tmpfs':
                          continue
                      disk['df-psutil'].append({'info': [row[0], row[5],'',''], 'total': int(row[1])*1024, 'used': int(row[2])*1024, 'free': int(row[3])*1024, 'percent': row[4][:-1]}) 
              except:
                  pass
  
          return disk
  
  
  if __name__ == '__main__':
      Plugin().execute()
  
subject: Update diskusage.py