16_input_numbers_required.py

#!/usr/bin/env python3
# vim: set fileencoding=utf-8

#
#  (C) Copyright 2021  Pavel Tisnovsky
#
#  All rights reserved. This program and the accompanying materials
#  are made available under the terms of the Eclipse Public License v1.0
#  which accompanies this distribution, and is available at
#  http://www.eclipse.org/legal/epl-v10.html
#
#  Contributors:
#      Pavel Tisnovsky
#

import pywebio.input as inp
import pywebio.output as out

# Body Mass Index calculator

info = inp.input_group(
    "Entry",
    [
        inp.input("Mass (kg)", name="mass", type=inp.NUMBER, required=True),
        inp.input("Height (cm)", name="height", type=inp.NUMBER, required=True),
    ],
)

mass = info["mass"]
height = info["height"]

# převod výšky na metry
height = height / 100.0

# výpočet (bez jakýchkoli kontrol)
bmi = mass / (height * height)

# výpis výsledku
out.put_info("BMI = ", bmi)