tkcalendar | Calendar widget for Tkinter

I am creating a GUI using tkinter in python and I have managed to print the date of what the user had selected using dateEntry but I am wondering if it is possible to only extract the year of the user?

Here is what my code looks like:

My problem is I want to get the value of the date that was selected in the ttk.DateEntry widget. According to this documentation you need to use get_date() Docs

It may be that I am misunderstanding the usage of that but I get the following error

AttributeError: 'DateEntry' object has no attribute 'get_date'

I do use this library for styling ttkboostrap

Here is my code example:

I have a program that creates a form so you can use it to add entries into a SQL Server database.

One of the things I wanted to add was a calendar widget so the user can choose the time by clicking on that date in the tkcalendar widget rather than writing it. I created the widget, but I have no idea how to get the date from the widget and then enter it into SQL Server.

Can someone please help?

This is what it looks like currently.

I have a main window with an element, key = -PATIENT-. When I exit the element a function runs to capitalise the entry and to update the element. All good. I also have a secondary window with an element,key = -NAME-. I want to be able to bind the secondary window element so that when I exit it, it will also run a similar function to capitalise the entry and update the element. This is where I have a problem. When a name is entered in the -PATIENT- element, on FocusOut the name is capitalised and checked against a list of names. If the names is not in the list a popup asks if it should be put into the secondary window element. If affirmative this is done. However, if from the dropdown menu (Edit) a new name should be added to the -NAME- element of the secondary window, then if the name is in lower case, the function to change its first letters to uppercase should run. I cannot get this binding to work for the secondary window. I am attaching a simple sample program (code) to illustrate the problem. Please help.

Just picked up tkinter recently

I have a program where when a user click a [...] button, it will display a toplevel window containing a calendar and [OK] button inside it.

When the user click the [OK] button, I want it to change [startDate] variable, and [labelStartDate] label in the main window. I need the [startDate] variable for my next data process. and [labelStartDate] label is to show user that the date is changed.

How to achieve that? I tried to use command=lambda or stringvar, but honestly I am kinda lost trying to apply it to my program.

I have written a program using Tkinter and then, the same program using PySimpleGUI. When I run a report in the Tk program in outputs the data to the console and also opens an editor and lists the formatted data so that it can be printed. The PySimpleGUI program also outputs the data to the console and opens the editor but does not populate it. Can anyone see what the 'problem/solution' may be? I have only shown the code related to the report writer for brevity. I suspect that the problem lies in the last approximately 6 lines.

Secondly, if I use a popup_get_date() it produces a date in the wrong format (I want 'yyyy-MM-dd'. Is there a way to tell the popup to produce the date in the correct format? For example I want the following to happen: window['ELEMENT].update(sg.popup_get_date()) to put a formatted date into the Element.

I have a cashbook program that makes use of TABS to separate receipt entries from expense entries. In both the 'Receipts' and 'Expenses' tabs there is an Input element for entering a money value. I want to bind the element so that when losing focus it converts the figure entered to a format with 2 decimal places. (see:event=='-RECAMNT-FOCUS OUT':). The problem is that when I run the code an error comes up stating that you cannot perform operations on an element until read() is called or finalize=True when window is created. The binding works perfectly in a program with just a main window (without tabs). Can anyone please tell me how to solve this problem? I am unable to add 'finalize=True' where the window creation has 3 layouts. window =sg.Window('Cash Book',layout).Layout(tabgrp).layout(layout3)

I am posting extracted code to show where the problem appears to arise.

I have a short PySimpleGUI program to test FocusOut. Jason Yang provided the code which works exactly as I want it to. However, a new problem has surfaced and I am therefore posting it as a new question. In the code below, if one fails to enter and amount in say the 'FUELQUANT' field an error is raised and a popup generated. However, if you enter a value, say 13.5 I want it to reflect in the Inbox as 13.50. To do so I want to read the value in the field then format it to 2 decimal places and return it via .update to the Inbox. My problem is that as soon as I put in the formatting code line(s), then if there is no value in the Inbox (i.e when it should cause the popup to activate), I get an error: "could not convert string to float: ' ' " Is there a way around this? I have tried everything that I could find to try to solve the problem but nothing seems to work.

this is probably a really simple question, but I can't seem to find the answer.

But how do I go about changing the date of a tkcalendar calendar without user input?

Right now I am creating a new calendar every time my program loops to certain screen and I feel that this is inefficient.

Example:

Thank you!