ibm_watson.websocket.recognize_listener module

class RecognizeListener(audio_source, options, callback, url, headers, http_proxy_host=None, http_proxy_port=None, verify=None)[source]

Bases: object

classmethod build_start_message(options)[source]
classmethod build_closing_message()[source]
classmethod extract_transcripts(alternatives)[source]
send(data, opcode=1)[source]

Send message to server.

data: message to send. If you set opcode to OPCODE_TEXT,

data must be utf-8 string or unicode.

opcode: operation code of data. default is OPCODE_TEXT.

send_audio(ws)[source]

Stream audio to server

Parameters

ws – Websocket client

on_open(ws)[source]

Callback executed when a connection is opened to the server. Handles streaming of audio to the server.

Parameters

ws – Websocket client

on_data(ws, message, message_type, fin)[source]

Callback executed when message is received from the server.

Parameters

  • ws – Websocket client

  • message – utf-8 string which we get from the server.

  • message_type – Message type which is either ABNF.OPCODE_TEXT or ABNF.OPCODE_BINARY

  • fin – continue flag. If 0, the data continues.

on_error(ws, error)[source]

Callback executed when an error is received

Parameters

  • ws – Websocket client

  • error – Exception object

on_close(ws)[source]

Callback executed when websocket connection is closed

Parameters

ws – Websocket client