Why I cannot update the data that is set on the chart?

[TamijiMehrdad]

Question

I used this library(version 1.0.22) 6 months ago but now my codes that worked that time doesn't work. I have several separate functions that I am sure they worked but now they doesn't work now. I check this by versions of 1.0.22, 2.0.1, and 2.1.0. The only thing that changed since 6 month ago, I changed my operation system from Ubuntu 22.04 to Ubuntu 24.04

The code is very easy and I used ohlcv.csv in example folder of this repository. I want to show all the candles and then start from first candle and add some text to that candle. I got this error:

Exception in thread Thread-2 (loop):
Traceback (most recent call last):
File "/../ml/lib/python3.10/site-packages/lightweight_charts/chart.py", line 89, in loop
window.evaluate_js(arg)
File "/../ml/lib/python3.10/site-packages/webview/window.py", line 48, in wrapper
return function(self, *args, **kwargs)
File "/../ml/lib/python3.10/site-packages/webview/window.py", line 459, in evaluate_js
raise JavascriptException(result)
webview.errors.JavascriptException: {'name': 'Error', 'message': 'Cannot update oldest data, last time=[object Object], new time=[object Object]', 'line': 7, 'column': 147441, 'sourceURL': 'http://127.0.0.1:16789/lightweight-charts.js', 'stack': 'Lb@http://127.0.0.1:16789/lightweight-charts.js:7:147441\ntw@http://127.0.0.1:16789/lightweight-charts.js:7:158601\nupdate@http://127.0.0.1:16789/lightweight-charts.js:7:153502\neval code@\neval@[native code]\nglobal code@http://127.0.0.1:16789/test.html:4:33'}

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/../ml/lib/python3.10/threading.py", line 1016, in _bootstrap_inner
self.run()
File "/../ml/lib/python3.10/threading.py", line 953, in run
self._target(*self._args, **self._kwargs)
File "/../ml/lib/python3.10/site-packages/lightweight_charts/chart.py", line 94, in loop
raise JavascriptException(f"\n\nscript -> '{arg}',\nerror -> {msg['name']}[{msg['line']}:{msg['column']}]\n{msg['message']}")
webview.errors.JavascriptException:

script -> 'window.qsygphzs.series.update({
"Unnamed: 0": 0,
"time": 1277769600.0,
"open": 1.2667,
"high": 1.6667,
"low": 1.1693,
"close": 1.5927,
"volume": 277519500.0
})',
error -> Error[7:147441]
Cannot update oldest data, last time=[object Object], new time=[object Object]

I know if I change the line chart.set(df1) to chart.set(df1[0:1]) to make sure chart._last_bar is correct, the problem would be solve but the problem is that in that situation I cannot see all the candles.

Code example

    chart = Chart()
    df1 = pd.read_csv('ohlcv.csv')
    chart.set(df1)
    chart.show()
    for i, series in df1.iterrows():
        chart.update(series)
        chart.marker(text='THIS')
    input()