[BUG] Toolbox drawings are not loaded from drawings.json

[xylophoneengine]

Expected Behavior

Persisted drawings are rendered

Current Behaviour

Drawings are not rendered

Reproducible Example

import pandas as pd
import yfinance as yf
from lightweight_charts import Chart

def get_bar_data(symbol, timeframe):
    if symbol not in ("AAPL", "GOOGL", "TSLA"):
        print(f'No data for "{symbol}"')
        return pd.DataFrame()
    fin_data: yf.Ticker = yf.Ticker("^SPX")
    fin_hist: pd.DataFrame = fin_data.history(
        period="max",  # 1d, 5d, 1mo, 3mo, 6mo, 1y, 2y, 5y, 10y, ytd, max
        interval="1d",  # 1m,2m,5m,15m,30m,60m,90m,1h,1d,5d,1wk,1mo,3mo
        start="1983-01-01",
    )
    return fin_hist

def on_search(chart, searched_string):
    new_data = get_bar_data(searched_string, chart.topbar["timeframe"].value)
    if new_data.empty:
        return
    chart.topbar["symbol"].set(searched_string)
    chart.set(new_data)

    # Load the drawings saved under the symbol.
    chart.toolbox.load_drawings(searched_string)

def on_timeframe_selection(chart):
    new_data = get_bar_data(
        chart.topbar["symbol"].value, chart.topbar["timeframe"].value
    )
    if new_data.empty:
        return
    # The symbol has not changed, so we want to re-render the drawings.
    chart.set(new_data, render_drawings=True)

if __name__ == "__main__":
    chart = Chart(toolbox=True)
    chart.legend(True)

    chart.events.search += on_search
    chart.topbar.textbox("symbol", "TSLA")
    chart.topbar.switcher(
        "timeframe",
        ("1min", "5min", "30min"),
        default="5min",
        func=on_timeframe_selection,
    )

    df = get_bar_data("TSLA", "5min")

    chart.set(df)

    # Imports the drawings saved in the JSON file.
    chart.toolbox.import_drawings("drawings.json")

    # Loads the drawings under the default symbol.
    chart.toolbox.load_drawings(chart.topbar["symbol"].value)

    # Saves drawings based on the symbol.
    chart.toolbox.save_drawings_under(chart.topbar["symbol"])

    chart.show(block=True)

    # Exports the drawings to the JSON file upon close.
    chart.toolbox.export_drawings("drawings.json")

Environment

- OS: Windows 10
- Library:
pandas==2.1.2
lightweight-charts==1.0.18.6
yfinance==0.2.31

[louisnw01]

Hey @xylophoneengine,

Thanks for pointing this out, appeared to be a rounding error. Fixed in the latest version.

Louis