[python] tkinter miles km converter / tkinter 마일 킬로미터 변환기

python의 tkinter 모듈을 사용해서 단위 변환기를 만들어 보자.

아직 tkinter 모듈을 처음 공부하는 중이기 때문에, 간단하게 구현해보았다.

 

1. miles to km, km to miles 2가지 옵션 구현

2. 버튼을 누를 시 계산이 완료되어 완료 값이 출력

 

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코드

from tkinter import *

window = Tk()

FONT = ("Arial", 20)

from_unit = "miles"
to_unit = "km"

window.title("Unit Converter")
window.minsize(width="250", height="100")
window.config(padx=50, pady=25)

# Label
from_label = Label(text=f"{from_unit}", font=FONT)
from_label.grid(column=2, row=2, padx=5, pady=5)

to_label = Label(text=f"{to_unit}", font=FONT)
to_label.grid(column=2, row=3, padx=5, pady=5)

result_label = Label(text="0", font=FONT)
result_label.grid(column=1, row=3, padx=5, pady=5)

equal_to_label = Label(text="is equal to", font=FONT)
equal_to_label.grid(column=0, row=3, padx=5, pady=5)

empty_label = Label(text="", font=FONT)
empty_label.grid(column=1, row=1)

arrow_label = Label(text="➡️➡️➡️", font=FONT)
arrow_label.grid(column=0, row=2)

# Entry
num_input = Entry(width=10)
num_input.grid(column=1, row=2, padx=5, pady=5)


# Radio Button
def label_update():
    from_label.config(text=from_unit)
    to_label.config(text=to_unit)        

def change_mode(mode):
    global from_unit, to_unit
    if mode == "miles":
        from_unit = "miles"
        to_unit = "km"
    else:
        from_unit = "km"
        to_unit = "miles"
    label_update()


mode_select = StringVar()
miles_button = Radiobutton(text="miles -> km", value="miles", variable=mode_select, command=lambda: change_mode("miles"))
miles_button.select()
km_button = Radiobutton(text="km -> miles", value="km", variable=mode_select, command=lambda: change_mode("km"))

miles_button.grid(column=0, row=0)
km_button.grid(column=2, row=0)


# Button
def calculate(unit, value):
    if value:        
        if unit == "miles":
            result = miles_to_km(value)
        elif unit == "km":
            result = km_to_miles(value)
        result_label.config(text=round(result, 3))      

def miles_to_km(value):
    return float(value) * 1.609
def km_to_miles(value):
    return float(value) * 0.621

calculate_button = Button(text="CONVERT", command=lambda: calculate(unit=from_unit, value=num_input.get()))
calculate_button.grid(column=1, row=4)


window.mainloop()

 

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실행 결과

012