Traceback (most recent call last):


 "calibre/customize/ui.py", line 172, in _run_filetype_plugins


 "calibre_plugins.dedrm.__init__", line 638, in run

decrypted_ebook = self.PDFDecrypt(path_to_ebook)


 "calibre_plugins.dedrm.__init__", line 513, in PDFDecrypt

raise DeDRMError("{0} v{1}: Ultimately failed to decrypt after {2:.1f} seconds. Read the FAQs at Harper's repository: https://github.com/apprenticeharper/DeDRM_tools/blob/master/FAQs.md".format(PLUGIN_NAME, PLUGIN_VERSION, time.time()-self.starttime))
calibre_plugins.dedrm.DeDRMError: DeDRM v7.1.0: Ultimately failed to decrypt after 0.2 seconds. Read the FAQs at Harper's repository: https://github.com/apprenticeharper/DeDRM_tools/blob/master/FAQs.md

Traceback (most recent call last):


 "/Users/nisml/anaconda3/envs/raytest/bin/ray", line 8, in <module>

sys.exit(main())


 "/Users/nisml/anaconda3/envs/raytest/lib/python3.7/site-packages/ray/scripts/scripts.py", line 1519, in main

return cli()


 "/Users/nisml/anaconda3/envs/raytest/lib/python3.7/site-packages/click/core.py", line 829, in __call__

return self.main(*args, **kwargs)


 "/Users/nisml/anaconda3/envs/raytest/lib/python3.7/site-packages/click/core.py", line 782, in main

rv = self.invoke(ctx)


 "/Users/nisml/anaconda3/envs/raytest/lib/python3.7/site-packages/click/core.py", line 1259, in invoke

return _process_result(sub_ctx.command.invoke(sub_ctx))


 "/Users/nisml/anaconda3/envs/raytest/lib/python3.7/site-packages/click/core.py", line 1066, in invoke

return ctx.invoke(self.callback, **ctx.params)


 "/Users/nisml/anaconda3/envs/raytest/lib/python3.7/site-packages/click/core.py", line 610, in invoke

return callback(*args, **kwargs)


 "/Users/nisml/anaconda3/envs/raytest/lib/python3.7/site-packages/ray/scripts/scripts.py", line 558, in start

ray_params, head=True, shutdown_at_exit=block, spawn_reaper=block)


 "/Users/nisml/anaconda3/envs/raytest/lib/python3.7/site-packages/ray/node.py", line 220, in __init__

self.start_head_processes()


 "/Users/nisml/anaconda3/envs/raytest/lib/python3.7/site-packages/ray/node.py", line 827, in start_head_processes

self.start_redis()


 "/Users/nisml/anaconda3/envs/raytest/lib/python3.7/site-packages/ray/node.py", line 642, in start_redis

fate_share=self.kernel_fate_share)


 "/Users/nisml/anaconda3/envs/raytest/lib/python3.7/site-packages/ray/_private/services.py", line 852, in start_redis

primary_redis_client.set("NumRedisShards", str(num_redis_shards))


 "/Users/nisml/anaconda3/envs/raytest/lib/python3.7/site-packages/redis/client.py", line 1801, in set

return self.execute_command('SET', *pieces)


 "/Users/nisml/anaconda3/envs/raytest/lib/python3.7/site-packages/redis/client.py", line 898, in execute_command

conn = self.connection or pool.get_connection(command_name, **options)


 "/Users/nisml/anaconda3/envs/raytest/lib/python3.7/site-packages/redis/connection.py", line 1192, in get_connection

connection.connect()


 "/Users/nisml/anaconda3/envs/raytest/lib/python3.7/site-packages/redis/connection.py", line 567, in connect

self.on_connect()


 "/Users/nisml/anaconda3/envs/raytest/lib/python3.7/site-packages/redis/connection.py", line 643, in on_connect

auth_response = self.read_response()


 "/Users/nisml/anaconda3/envs/raytest/lib/python3.7/site-packages/redis/connection.py", line 739, in read_response

response = self._parser.read_response()


 "/Users/nisml/anaconda3/envs/raytest/lib/python3.7/site-packages/redis/connection.py", line 470, in read_response

self.read_from_socket()


 "/Users/nisml/anaconda3/envs/raytest/lib/python3.7/site-packages/redis/connection.py", line 453, in read_from_socket

(ex.args,))
redis.exceptions.ConnectionError: Error while reading from socket: (54, 'Connection reset by peer')`