old_contents: import os
  
  from ufs_tools.app_framework import get_executable_folder
  
  
  class DjangoServerBase(object):
      def __init__(self, django_manage_script=None):
          super(DjangoServerBase, self).__init__()
          if django_manage_script is None:
              self.django_manage_script = self.default_django_manage_script
          else:
              self.django_manage_script = django_manage_script
          self.django_manage_script = os.environ.get("MANAGE_PY", self.django_manage_script)
  
      def get_task_descriptor(self, task_name, param_list=None):
          param_list = param_list or []
          task_name_and_param = [self.django_manage_script, task_name]
          task_name_and_param.extend(param_list)
          return {task_name: task_name_and_param}
  
      def execute_cmd(self, django_cmd):
          os.system(self.get_cmd_str(django_cmd))
  
  
  class DjangoServer(DjangoServerBase):
      default_django_manage_script = "manage.py"
  
      # noinspection PyMethodMayBeStatic
      def get_cmd_str(self, cmd_name, param_list=[]):
          return "python %s %s" % (self.django_manage_script, cmd_name)
  
      def get_run_server_task_descriptor(self, params=None):
          return self.get_task_descriptor("runserver", ["0.0.0.0:8110"])
  
  
  class DjangoServerExe(DjangoServerBase):
      default_django_manage_script = "manage.exe"
  
      # noinspection PyMethodMayBeStatic
      def get_cmd_str(self, cmd_name, param_list=[]):
          return "%s %s" % (self.django_manage_script, cmd_name)
  
      # noinspection PyMethodMayBeStatic
      def get_run_server_task_descriptor(self, params=None):
          params = params or []
          exe_folder = get_executable_folder()
          cmd_and_param = [os.path.join(exe_folder, "cherrypy_server.exe")]
          cmd_and_param.extend(params)
          # print "pwd:", os.getcwd()
          # print "!!!!!!!!!!!!!!!!!!!!!!!!!", exe_folder
          # os.chdir(exe_folder)
          return {"run server": cmd_and_param}
  
new_contents: import os
  
  from ufs_tools.app_framework import get_executable_folder
  
  
  class DjangoServerBase(object):
      def __init__(self, django_manage_script=None):
          super(DjangoServerBase, self).__init__()
          if django_manage_script is None:
              self.django_manage_script = self.default_django_manage_script
          else:
              self.django_manage_script = django_manage_script
          self.django_manage_script = os.environ.get("MANAGE_PY", self.django_manage_script)
  
      def get_task_descriptor(self, task_name, param_list=None):
          param_list = param_list or []
          task_name_and_param = [self.django_manage_script, task_name]
          task_name_and_param.extend(param_list)
          return {task_name: task_name_and_param}
  
      def execute_cmd(self, django_cmd):
          print "!!!!!!!!!!!!!!! cur folder:", os.getcwd()
          os.system(self.get_cmd_str(django_cmd))
  
  
  class DjangoServer(DjangoServerBase):
      default_django_manage_script = "manage.py"
  
      # noinspection PyMethodMayBeStatic
      def get_cmd_str(self, cmd_name, param_list=[]):
          return "python %s %s" % (self.django_manage_script, cmd_name)
  
      def get_run_server_task_descriptor(self, params=None):
          return self.get_task_descriptor("runserver", ["0.0.0.0:8110"])
  
  
  class DjangoServerExe(DjangoServerBase):
      default_django_manage_script = "manage.exe"
  
      # noinspection PyMethodMayBeStatic
      def get_cmd_str(self, cmd_name, param_list=[]):
          exe_folder = get_executable_folder()
          return "%s %s" % (os.path.join(exe_folder, self.django_manage_script), cmd_name)
  
      # noinspection PyMethodMayBeStatic
      def get_run_server_task_descriptor(self, params=None):
          params = params or []
          exe_folder = get_executable_folder()
          cmd_and_param = [os.path.join(exe_folder, "cherrypy_server.exe")]
          cmd_and_param.extend(params)
          # print "pwd:", os.getcwd()
          # print "!!!!!!!!!!!!!!!!!!!!!!!!!", exe_folder
          # os.chdir(exe_folder)
          return {"run server": cmd_and_param}
  
subject: Fix freeze issue.