stock-chart | 基于 canvas 的沪深两市股票分时 K 线图 | Chart library

In this post: Interactive Stock Chart, step by step animation with keyboard arrows, with Matplolib, I wrote a code, in which the user Zephyr brilliantly fixed, that interactively simulate a stock using keyboard arrows.
It turned out that I found a way of doing the same thing in Jupyter, using the module ipywidgets. The code works, but unfortunately the same chart is plotted twice. I have no idea why this is happening. Can someone help? I just want to show one plot (notice that the second plot does not move as I use the slider).
Here is the code:

I have a chart that I am displaying but the values on the y axis are being rounded to 1 decimal place but I would like for it to go to 2 decimal places. The data being fed into the chart has 6 decimal places as you can see in the legend when you hover over different parts of the chart. How do I keep it from rounding or specifying the number of decimals to round to? I have included a sample of the data because the full set is over a 1000 lines long. The full data set is in the codepen.

Thanks

https://codepen.io/akrug23/pen/dyXjYdO

I'm trying to include a line chart for some stock data in my django project using Chart.js. I can render a simple chart with the data I want just fine, but when I try to format the x-axis for date and time, the chart doesn't render anymore. Here's the working version of the file (client_small_market_view.html):