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bmi_calculator.py
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bmi_calculator.py
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from tkinter import *
from tkinter import messagebox
def get_height():
'''
This function gets height value from Entry field
'''
height = float(ENTRY2.get())
return height
def get_weight():
'''
This function gets weight value from Entry field
'''
weight = float(ENTRY1.get())
return weight
def calculate_bmi(a=""): # "a" is there because the bind function gives an argument to the function....
print(a)
'''
This function calculates the result
'''
try:
height = get_height()
weight = get_weight()
height = height / 100.0
bmi = weight / (height ** 2)
except ZeroDivisionError:
messagebox.showinfo("Result", "Please enter positive height!!")
except ValueError:
messagebox.showinfo("Result", "Please enter valid data!")
else:
if bmi <= 15.0:
res = "Your BMI is " + str(bmi) + "\nRemarks: Very severely underweight!!"
messagebox.showinfo("Result", res)
elif 15.0 < bmi <= 16.0:
res = "Your BMI is " + str(bmi) + "\nRemarks: Severely underweight!"
messagebox.showinfo("Result", res)
elif 16.0 < bmi < 18.5:
res = "Your BMI is " + str(bmi) + "\nRemarks: Underweight!"
messagebox.showinfo("Result", res)
elif 18.5 <= bmi <= 25.0:
res = "Your BMI is " + str(bmi) + "\nRemarks: Normal."
messagebox.showinfo("Result", res)
elif 25.0 < bmi <= 30:
res = "Your BMI is " + str(bmi) + "\nRemarks: Overweight."
messagebox.showinfo("Result", res)
elif 30.0 < bmi <= 35.0:
res = "Your BMI is " + str(bmi) + "\nRemarks: Moderately obese!"
messagebox.showinfo("Result", res)
elif 35.0 < bmi <= 40.0:
res = "Your BMI is " + str(bmi) + "\nRemarks: Severely obese!"
messagebox.showinfo("Result", res)
else:
res = "Your BMI is " + str(bmi) + "\nRemarks: Super obese!!"
messagebox.showinfo("Result", res)
if __name__ == '__main__':
TOP = Tk()
TOP.bind("<Return>", calculate_bmi)
TOP.geometry("400x300")
TOP.configure(background="#363332")
TOP.title("BMI Calculator")
TOP.resizable(width=False, height=False)
LABLE = Label(TOP, bg="#363332", text="Welcome to BMI Calculator", font=("Helvetica", 18, "bold"), pady=10, fg="#9ea1b0")
LABLE.place(x=45, y=0)
LABLE1 = Label(TOP, bg="#363332", text="Enter Weight (in kg):", bd=6,
font=("Helvetica", 12, "bold"), pady=5, fg="#edeff7", relief="flat")
LABLE1.place(x=75, y=55)
ENTRY1 = Entry(TOP, bd=1, width=6, font="Roboto 11")
ENTRY1.place(x=255, y=60)
LABLE2 = Label(TOP, bg="#363332", text="Enter Height (in cm):", bd=6,
font=("Helvetica", 12, "bold"), pady=5, fg="#edeff7", relief="flat")
LABLE2.place(x=75, y=116)
ENTRY2 = Entry(TOP, bd=1, width=6, font="Roboto 11")
ENTRY2.place(x=255, y=121)
BUTTON = Button(bg="#bd8ff2", bd=3, text="Calculate BMI", padx=30, pady=5, command=calculate_bmi,
font=("Roboto", 20, "italic"), relief="flat")
BUTTON.place(x=70, y=200)
TOP.mainloop()