vsb | Visual SPARQL Builder - Model SPARQL | Data Manipulation library

I am trying to create a simple GUI that after pressing upload button, selecting files and uploading them, will run another function. Problem is, no matter what I try, it either brakes the GUI completely or simply doesn't work.

my current code looks like this

I am writing a small application based on tkinter in order to read serial data from my arduino. The arduino, when it receives a serial text (rf), it will begin sending data to the pc.

Below is the suspicious code:

I tried to create a multiple checkboxes and get the information whether they are checked or not. I tried to use tkinter for this purpose. The number of checkboxes would be variable. Up to now, I found a way to create the checkboxes with the following code. With this, 10 checkboxes are created at which people can tick any of them

I managed to get my tkinter aplication to display text on a text field.

I did this by hardcoding the COM port and baud rate, then set up a serial object at the beginning of my program.

In my tkinter program, i plan to have a button to read serial data. This will begin the execution of a function called readSerial() that will grab data and display them to a textbox.

This is the function:

Tl;dr: 1500 inserts to a Treeview widget from another thread have been taking 40-340 seconds to complete, but take only 1.2-1.7 seconds to complete if inserted while on the main thread or while the root window is so small that Treeview can't be seen.

I'm working on a little project involving neural networks identifying images for a game, and I'm trying to figure out why my results Treeview updates so slowly after identifying the images. The code I have below is an MCVE of the general issue I'm running into.

My application currently trains the networks, makes predictions based on the training models, then when displaying the results of those predictions takes longer than both the training and predictions take to display 1500 results. In both my application and this example I've found that in general how long the populate button takes to complete and display all results seems to be directly proportional to how tall the window is (or how tall the Treeview widget is), with this example ranging between 40 and 340 seconds to display all 1500 rows of output on my current machine. I tried using cProfile and pstats to determine what more specifically is causing the delay, however I'm still inexperienced with them and although I know that roughly 99% of the time is spent on '{method 'call' of '_tkinter.tkapp' objects}' and '{method 'globalsetvar' of '_tkinter.tkapp' objects}', I don't know what either of these are, or what to do with that information.

However, I've found that if I start the worker function while the window is so small that the Treeview can't be displayed, then it takes roughly 1.2 - 1.7 seconds to display all results. This can be visibly seen by watching the progress bar in my example and seeing how it progresses much more quickly the smaller you make the window. Due to the fact that it can display all results in this amount of time demonstrates (at least to me) that the vast majority of the time spent with the Treeview visible while inserting results is spent rendering the text over and over again and updating the height of the scrollbar. To that end, I've been trying to find a way to insert a large quantity of rows at once or at least without rendering the Treeview again after every change, but haven't found anything that seems to be able to do that.

While trying to create this MCVE, I found that it takes an equally short amount of time (~1.5 seconds) to display all results if I call the add_entries function on the main thread instead of calling it on another thread. While I think this could be a viable solution, I'm curious if there's a better solution available while trying to get more information about a problem I've so far struggled to find much about.

The closest I've found so far is this discussion talking about how with a similar module (GTK3) someone had a similar issue and a solution was to set the Treeview to a fixed height model, however I can't find any information about a similar option being available to regular tkinter Treeview widgets as opposed to just GTK3, and was curious if such an option exists in tkinter or if that's exclusive to other modules, or if there's a better solution out there that I haven't thought of entirely.

I have a training task in AdventureWorks2017 DB. The task is the following: I need a list of the Jobtitle in which the fewest and most women work in proportions. Only consider those in which at least 4 people work.

So far my code looks like this:

I have a set of codes that will create a subframe through a function. This was made a function because I connected it to a button that if clicked will add new set of identical subframes.

My concern now is that I would also need a remove button beside the add button. However, I do not know the name of these frames made by this function. I tried to look for similar cases but the one I found is made from class, not by function.

Is there a way around for this, or I really have to convert my function into a class? Thank you.

Here is my current set of codes (with add button but no remove button yet):

We have a multi-module Java EE application that uses EJB's.

This is an example of the error that we get:

20210211:20:02:37:923|ERROR|Thread 223|-||||c.o.p.i.I.c.o.p.i.InterceptionMetadata|Cannot find JNDI binding for 'java:comp/env/be.cm.apps.evsb.datasplitter.mdb.GsBOBDataFileNotificationMDB/gsDataFileReader', While trying to look up comp/env/be.cm.apps.evsb.datasplitter.mdb.GsBOBDataFileNotificationMDB/gsDataFileReader in /app/ejb/be.cm.common.vsb-vsb-sync-client-javaee-1.3.0-SNAPSHOT.jar/#RabbitTopicConnectionImpl.

We can find no information about this error online or in documentation.

vsb-sync-client-javaee is an external dependency that we import as a type ejb into a module that we in turn import as ejb type in our pom dependency file within the global ear project.
RabbitTopicConnectionImpl here is an EJB from within that dependency.

The example class here: gsDataFileReader is an EJB that is used from within another module within the same EAR. This module both declares and injects the EJB.
We receive an entire stream of errors in Weblogic for every EJB (local) in this module.
The first module (vsb-sync-client-javaee) has a dependency on the second module, but not the other way around.
It looks as if the second module tries to lookup the EJB within the first module, which makes no sense.
More so since the EjB's are declared from within that module.

Any idea why this happens, or any alternative ideas?

Note, the application worked perfectly before we added the external vsb-sync-client-javaee EJB module.
Let me know if anything is not clear, as this is not an easy problem to describe.