Basics: https://likegeeks.com/python-gui-examples-tkinter-tutorial/

Layout: https://zetcode.com/tkinter/layout/

grid: https://blog.tecladocode.com/tkinters-grid-geometry-manager/

Mixed layout: https://stackoverflow.com/a/38154650/15030988

Radiobutton Gruppen: https://riptutorial.com/tkinter/example/30286/create-a-group-of-radiobuttons https://stackoverflow.com/a/47162318/15030988

Buttons mit gemeinsamer click-Funktion: https://stackoverflow.com/a/6921225/15030988

MessageBox: https://docs.python.org/3/library/tkinter.messagebox.html

Neues Fenster: https://www.delftstack.com/de/howto/python-tkinter/how-to-create-a-new-window-with-a-button-in-tkinter/

• winfo_screenwidth()
• winfo_screenheight()

Fenster in Bildschirmmitte ausrichten: https://m.youtube.com/watch?v=gjU3Lx8XMS8

• X=(screenwidth-windowwidth)/2
• Y=(screenheight-windowheight)/2

die Position kann wie die Größe mit der geometry Methode gesetzt werden

root = Tk()
root.geometry("300x200+300+300") #WxH+X+Y

es kann auch nur die position verändert werden:

root.geometry("+10+10")

import tkinter as tk
 
class App:
  def __init__(self, window):
    window.geometry('350x200')
    frame = tk.Frame(window)
    frame.pack()
    self.button = tk.Button(frame, 
                         text="QUIT", fg="red",
                         command=frame.quit)
    self.button.pack(side=tk.LEFT)
    self.slogan = tk.Button(frame,
                         text="Hello",
                         command=self.write_slogan)
    self.slogan.pack(side=tk.LEFT)
  def write_slogan(self):
    print("Tkinter is easy to use!")
 
if __name__ == "__main__":
    root = tk.Tk()
    app = App(root)
    root.mainloop()

alternativ kann man auch direkt von der tk.Tk-Klasse ableiten, somit muss das Fenster nicht extern erzeugt werden

class App(tk.Tk):
  def __init__(self):
    tk.Tk.__init__(self)
    self.geometry('350x200')
    frame = tk.Frame(self)
    ...

Das sollte aber nur bei Anwendungen gemacht werden die nur 1 Fenster nutzen. Bei mehreren Fenstern sollte die Fenstererstellung außerhalb der Klasse und nur das Füllen des Fensters innerhalb ablaufen.

hier wird ein neuer Frame erzeugt um die Scrollbars an der Textbox auszurichten

ggf. mainframe (Eltern-Element) und txt_frm.grid anpassen (ggf. pack o.ä.)

import tkinter as tk
 
class scrolltext(tk.Frame):
    def __init__(self,parent,width,height):
        tk.Frame.__init__(self, parent, width=width, height=height)
        # ensure a consistent GUI size
        self.grid_propagate(False)
        # implement stretchability
        self.grid_rowconfigure(0, weight=1)
        self.grid_columnconfigure(0, weight=1)
 
        self.txt = tk.Text(self, borderwidth=3, relief="sunken")
        self.txt.config(undo=True, wrap='none')#word
        self.txt.grid(row=0, column=0, sticky="nsew", padx=2, pady=2)
 
        #create vertical scrollbar
        self.vscrollb = tk.Scrollbar(self, command=self.txt.yview)
        self.vscrollb.grid(row=0, column=1, sticky='nsew')
        self.txt['yscrollcommand'] = self.vscrollb.set
 
        #create horizontal scrollbar
        self.hscrollb = tk.Scrollbar(self, orient='horizontal',command=self.txt.xview)
        self.hscrollb.grid(row=1, column=0, sticky='nsew')
        self.txt['xscrollcommand'] = self.hscrollb.set
 
    def focus(self):
        self.txt.focus()
    def getText(self):
        return self.txt.get("1.0", tk.END)
    def setText(self,text):
        self.txt.delete(1.0,"end")
        self.txt.insert(1.0, text)
 
if __name__ == "__main__":
    def clicked():
        print(txt.getText().splitlines())
        txt.setText("this is a special text")
 
    window = tk.Tk()
    window.geometry('350x200')
    window.title("Welcome to LikeGeeks app")
 
    txt=scrolltext(window, width=250,height=200)
    txt.pack(side = tk.LEFT,fill=tk.BOTH,expand=1)
 
    btn = tk.Button(window, text="Click Me", command=clicked)
    btn.pack(side=tk.RIGHT)
 
    txt.focus()
 
    window.mainloop()

https://stackoverflow.com/a/9662139/15030988

Beispiel mit yscrollcommand und zeilenweisem auslesen: https://stackoverflow.com/a/17747230/15030988 Horizontale scrollbar: https://stackoverflow.com/a/47954818/15030988

https://riptutorial.com/tkinter/example/31880/treeview--basic-example

https://www.askpython.com/python-modules/tkinter/tkinter-treeview-widget

ein PanedWindow is ein Container für mindestens 2 Widgets mit einer verschiebbaren Begrenzung.

m1 = tk.PanedWindow(window) 
m1.pack(fill = tk.BOTH, expand = 1)
 
button = tk.Button(m1,text="QUIT", fg="red")
m1.add(button, stretch="always") #always richtet automatisch aus, danach sind alle Felder gleich groß
 
button2 = tk.Button(m1,text="Hello")
m1.add(button2, stretch="always")
 
#setzen des Schiebereglers (optional, falls always nicht richtig ist)
m1.update()
m1.sash_place(0,400,0) #x-position 400 des ersten Widgets

https://stackoverflow.com/a/62032595/15030988

https://stackoverflow.com/a/27389064/15030988

tc = ttk.Notebook(master)
t1 = ttk.Frame(tc)
t2 = ttk.Frame(tc)
tc.add(t1, text ='Notebook tab1')
tc.add(t2, text ='Notebook tab2')
tc.pack(expand = 1, fill ="both")

https://www.educba.com/tkinter-notebook/

from tkinter import Tk, RIGHT, BOTH, RAISED,X,Y,IntVar,BooleanVar,StringVar
from tkinter import messagebox
from tkinter.ttk import Label, Frame, Button, Entry, Checkbutton,Radiobutton, Notebook, Treeview, Style
 
class Example():
 
    def __init__(self,window):
        self.window=window
        self.initUI(window)
 
    def initUI(self,window):
        self.tc=Notebook(window)
        self.t1 = Frame(self.tc)
        self.t2 = Frame(self.tc)
        self.t3 = Frame(self.tc)
        self.tc.add(self.t1, text ='Tab1')
        self.tc.add(self.t2, text ='Tab2')
        self.tc.add(self.t3, text ='Tab3')
        self.tc.pack(fill=BOTH, expand=True)
 
        closeButton = Button(window, text="Close",command=window.destroy)
        closeButton.pack(side=RIGHT, padx=5, pady=5)
        okButton = Button(window, text="OK",command=lambda:messagebox.showinfo("OK pressed","Hello, you have successful pressed the OK-Button!\n\nEntry: %s CHK:%d RD:%s" % (self.e1.get(),self.chkvar1.get(),self.radvar1.get())))
        okButton.pack(side=RIGHT)
        mvButton = Button(window,text="move",command=lambda:window.geometry("+10+10"))
        mvButton.pack(side=RIGHT)
 
        self.filltabs()
 
    def filltabs(self):
        l1=Label(self.t1, text="Entry:")
        l1.grid(row=0,column=0)
        self.e1=Entry(self.t1)
        self.e1.grid(row=0,column=1)
        l2=Label(self.t1, text="Checkbutton:")
        l2.grid(row=1,column=0)
        self.chkvar1 = IntVar()
        self.chkvar1.set(1)
        c1=Checkbutton(self.t1, text='Choose', variable=self.chkvar1) #, onvalue=1,offvalue=0)
        c1.grid(row=1,column=1,sticky="W") #left justify
 
        l3=Label(self.t2,text="Radiobuttons")
        l3.grid(row=0,column=0,sticky="N")
        rf=Frame(self.t2)
        rf.grid(row=0,column=1)
        self.radvar1=StringVar()
        r1=Radiobutton(rf, text="Python", variable=self.radvar1, value="python")
        r1.pack(anchor="w") #untereinander linksbündig
        r2=Radiobutton(rf, text="PHP", variable=self.radvar1, value="php")
        r2.pack(anchor="w")
 
        self.tree1=Treeview(self.t3, columns=("Name", "Data")) # causes WIndow be bigger and hides buttonframe
        self.tree1.pack(fill=BOTH, expand=True)
 
        self.tree1.insert(parent='', index='end', iid=0, text="root", values=("First Col", "Second Col"))
        self.tree1.insert(parent=0, index='end', iid=1, text="child", values=("Hello", "Again"))
 
def main():
 
    root = Tk()
    root.geometry("400x300+300+300")
    root.title("testwindow")
    root.style = Style().theme_use("alt") # to show checkmarks in checkbutton and round radiobuttons
    app = Example(root)
    root.mainloop()
 
 
if __name__ == '__main__':
    main()