I get this error on calibre 5.8.1, macOS 11.1:
Code:
File "calibre_plugins.worddumb.database", line 72, in start_redis_server
subprocess.Popen(['redis-server', '--dir', db_path])
File "subprocess.py", line 854, in __init__
File "subprocess.py", line 1702, in _execute_child
FileNotFoundError: [Errno 2] No such file or directory: 'redis-server'
But this code works well if I run it in the debug mode. The PATH must be different between these two modes.