Problem with adding your own engine on Python

[ultralightbeat]

I watched a video(https://www.youtube.com/watch?v=gNHjeuQm7PA&list=PLmN0neTso3JzVlIQC3fwnP1qgIKp1x97X&index=6) where a guy had written his own python engine and decided to add it to Sabaki, but he can't initialize the version, name and so on

[ultralightbeat]

Go> name
Connection Failed
Go> version
Connection Failed
Go> protocol_version
Connection Failed
Go> list_commands
Connection Failed

[ultralightbeat]

`def gtp():
# main GTP loop
while True:
# accept GUI command
command = input()

    # handle commands
    if 'name' in command: print('= Wally\n')
    elif 'protocol_version' in command: print('= 1\n');
    elif 'version' in command: print('=', VERSION, '\n')
    elif 'list_commands' in command: print('= protocol_version\n')
    elif 'boardsize' in command: set_board_size(command); print('=\n')
    elif 'clear_board' in command: clear_board(); print('=\n')
    elif 'showboard' in command: print('= '); print_board()
    elif 'play' in command: play(command); print('=\n')
    elif 'genmove' in command: print('=', genmove(BLACK if command.split()[-1] == 'B' else WHITE) + '\n')
    elif 'quit' in command: sys.exit()
    else: print('=\n') # skip currently unsupported commands

start GTP communication

gtp()
`