I have so far designed a program whose main task is to calculate elapsed time and upload it to a DataFrame Widget. While I have successfully gotten most of my values accurately, I am having issues with publishing/appending the data to the widget. For one, despite reading the documentation and following some examples here, I keep getting a Future Warning Error saying that the .append and .concat functions for dataframes have been deprecated. My code will run after this error is thrown and then make new rows whether or not data is recieved. The data itself is not displayed on the widget menu

I have tried using .concat, ._append, .append for the dataframes which have all caused the future warning error. I have tried to store the list as a new data frame and append it to the existing one without success either (meaning that the dataframe on the widget does not display any changes whatsoever. Just the row names). Could it be because I am using PyQt5 for design? I have tried to use Tkinter but it is single thread and the program is designed to be multi-thread. Could there be any other reasons such as my use of dataframes and instead, I should consider another data structure.