backtrader.bokeh.live.datahandler module

Live data handler.

Handles real-time data updates and pushes.

class backtrader.bokeh.live.datahandler.UpdateType

基类：Enum

Data update type.

ADD = 1

UPDATE = 2

class backtrader.bokeh.live.datahandler.LiveDataHandler

基类：object

Live data handler.

Responsible for receiving, storing and pushing real-time data.

_doc

Bokeh document

_app

BacktraderBokeh application

_figid

Figure page ID

_lookback

Historical data retention

_fill_gaps

Whether to fill data gaps

__init__(doc, app, figid, lookback, fill_gaps=True, timeout=1)

Initialize data handler.

参数:

• doc -- Bokeh document

• app -- BacktraderBokeh application

• figid -- Figure page ID

• lookback -- Historical data retention

• fill_gaps -- Whether to fill data gaps

• timeout -- Thread timeout

get_last_idx()

Get last data index.

返回:

Last index, returns -1 if no data

返回类型:

int

set(df)

Set new DataFrame and push.

参数:

df -- New DataFrame

update()

Notify that new data is available.

stop()

Stop data handler.