old_contents: import subprocess
  
  from django.core.management.base import BaseCommand
  
  
  class Command(BaseCommand):
      help = 'Ensure that all installed packages are in requirements.txt'
  
      def _get_file_contents(self, name):
          req_file = open('requirements/%s.txt' % name)
          reqs = req_file.read()
          req_file.close()
          req_list = reqs.split('\n')
          if req_list[0].startswith('-r'):
              req_list = req_list[1:]
          return req_list
  
      def handle(self, *args, **options):
          check_prod = False
          if len(args) == 1:
              if args[0] == 'prod':
                  check_prod = True
              else:
                  print "Unrecognized option %s; defaulting to checking dev requirements." % args[0]
  
          proc = subprocess.Popen(['pip', 'freeze'], stdout=subprocess.PIPE)
          freeze_results = proc.communicate()[0].split('\n')
  
          req_list = self._get_file_contents('common')
  
          if check_prod:
              req_list.extend(self._get_file_contents('prod'))
          else:
              req_list.extend(self._get_file_contents('dev'))
  
          sorted(freeze_results)
          sorted(req_list)
  
          for freeze_item in freeze_results:
              if freeze_item not in req_list:
                  print "Item is missing from requirements files: %s" % freeze_item
  
          for req_item in req_list:
              if req_item not in freeze_results:
                  print "Required item is not installed: %s" % req_item
  
new_contents: import subprocess
  
  from django.core.management.base import BaseCommand
  
  
  class Command(BaseCommand):
      help = 'Ensure that all installed packages are in requirements.txt'
  
      def handle(self, *args, **options):
          proc = subprocess.Popen(['pip', 'freeze'], stdout=subprocess.PIPE)
          freeze_results = proc.communicate()[0].split('\n')
  
          common_file = open('requirements/common.txt')
          reqs = common_file.read()
          common_file.close()
          req_list = reqs.split('\n')
  
          dev_file = open('requirements/dev.txt')
          reqs = dev_file.read()
          dev_file.close()
          req_list.extend(reqs.split('\n')[1:])
  
          sorted(freeze_results)
          sorted(req_list)
  
          for freeze_item in freeze_results:
              if freeze_item not in req_list:
                  print "Item is missing from requirements files: %s" % freeze_item
  
subject: Revert "Added a prod option to the rquirements checker"