Answers for "Python and Tkinter Programming"

python example with tkinter

from tkinter import *
from tkinter import ttk

def calculate(*args):
    try:
        value = float(feet.get())
        meters.set(int(0.3048 * value * 10000.0 + 0.5)/10000.0)
    except ValueError:
        pass

root = Tk()
root.title("Feet to Meters")

mainframe = ttk.Frame(root, padding="3 3 12 12")
mainframe.grid(column=0, row=0, sticky=(N, W, E, S))
root.columnconfigure(0, weight=1)
root.rowconfigure(0, weight=1)

feet = StringVar()
feet_entry = ttk.Entry(mainframe, width=7, textvariable=feet)
feet_entry.grid(column=2, row=1, sticky=(W, E))

meters = StringVar()
ttk.Label(mainframe, textvariable=meters).grid(column=2, row=2, sticky=(W, E))

ttk.Button(mainframe, text="Calculate", command=calculate).grid(column=3, row=3, sticky=W)

ttk.Label(mainframe, text="feet").grid(column=3, row=1, sticky=W)
ttk.Label(mainframe, text="is equivalent to").grid(column=1, row=2, sticky=E)
ttk.Label(mainframe, text="meters").grid(column=3, row=2, sticky=W)

for child in mainframe.winfo_children(): 
    child.grid_configure(padx=5, pady=5)

feet_entry.focus()
root.bind("<Return>", calculate)

root.mainloop()

tkinter python

from tkinter import *
import time, datetime
from time import gmtime, strftime

root = Tk()

# Window Attributes
root.overrideredirect(1)
root.wm_attributes("-transparentcolor", "gray99")

running = True

# close window
def close(event):
    global running
    running = False

root.bind('<Escape>', close)

screen_width = root.winfo_screenwidth()
screen_height = root.winfo_screenheight()

timeframe = Frame(root, width=screen_width, height=screen_height, bg="gray99")
timeframe.grid(row=0,column=0)

tkintertime = StringVar()
timelabel = Label(timeframe, textvariable=tkintertime, fg="white", bg="gray99", font=("NovaMono", 40))
timelabel.place(y=screen_height/2 - 60, x=screen_width/2, anchor="center")

tkinterdate = StringVar()
datelabel = Label(timeframe, textvariable=tkinterdate, fg="white", bg="gray99", font=("Bahnschrift", 15))
datelabel.place(y=screen_height/2 + 60, x=screen_width/2, anchor="center")


while running:
    tkintertime.set(value=strftime("%H:%M:%S"))
    tkinterdate.set(value=strftime("%A, %e %B"))
    root.update_idletasks()
    root.update()
    time.sleep(1)