AttributeError when using `awx-manage deletion`

Issue

[root@ip-xxx-xx-xx-xx js]# awx-manage deletion --help
Traceback (most recent call last):
  File "/bin/awx-manage", line 11, in <module>
    load_entry_point('awx==3.7.2', 'console_scripts', 'awx-manage')()
  File "/var/lib/awx/venv/awx/lib64/python3.6/site-packages/awx/__init__.py", line 154, in manage
    execute_from_command_line(sys.argv)
  File "/var/lib/awx/venv/awx/lib64/python3.6/site-packages/django/core/management/__init__.py", line 381, in execute_from_command_line
    utility.execute()
  File "/var/lib/awx/venv/awx/lib64/python3.6/site-packages/django/core/management/__init__.py", line 375, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/var/lib/awx/venv/awx/lib64/python3.6/site-packages/django/core/management/__init__.py", line 224, in fetch_command
    klass = load_command_class(app_name, subcommand)
  File "/var/lib/awx/venv/awx/lib64/python3.6/site-packages/django/core/management/__init__.py", line 37, in load_command_class
    return module.Command()
AttributeError: module 'awx.main.management.commands.deletion' has no attribute 'Command'