How do I create empty chart and update with realtime data

[armeya25]

I was trying to create empty plot and after that update it with realtime data.

Just want to plot it no any indicator or anything just simple candlestick chart only.

How do I do it.
Example provided are to complex to understand,
I am dumb

[highfestiva]

There are two examples included which updates in real time. One uses http calls to fetch new data, and stalls the whole plot during that time (bfx.py), and the other uses websockets and is a bit more involved (complicated.py). finplot is for plotting, not for fetching data, so you'll have to build that part yourself. Best is perhaps to use complicated.py and strip away code you don't need and you'll end up with a few lines that you can modify to suit your needs.

[armeya25]

It streams data just like realtime data,
Want to plot it

[highfestiva]

If you post a complete, minimal working example, I can help you get it running.

[armeya25]

testDF.csv
check_me.txt

[highfestiva]

Here's a start:

import finplot as fplt
import pandas as pd

def get_plot_update():
    df = pd.read_csv('testDF.csv')
    df['date'] = pd.to_datetime(df.date)
    df = df.set_index('date')
    for i in range(50, len(df)):
        yield df.iloc[0:i]

def animate(gen):
    df = next(gen)
    print(df)
    live_plot.candlestick_ochl(df['open close high low'.split()])

fplt.create_plot()
live_plot = fplt.live()
gen = get_plot_update()
fplt.timer_callback(lambda: animate(gen), 1)
fplt.show()

[armeya25]

works like charm