Create app.py

app.py

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+import streamlit as st
+st.title('Welcome to BMI Calculator')
+
+weight = st.number_input('Enter your weight in Kgs')
+
+status = st.radio('Select your height format:',('cms','meters','feet'))
+
+try:
+   if status == 'cms':
+      height = st.number_input('Centimeters')
+      bmi = weight/((height/100)**2)
+   elif status == 'meters':
+      height = st.number_input('meters')
+      bmi = weight/((height)**2)
+   elif status == 'feet':
+      height = st.number_input('feet')
+      bmi = weight/((height/3.28)**2)
+except:
+   print('Zero Division error')
+
+if (st.button('Calculate BMI')):
+   st.write('Your BMI Index is {}.'.format(round(bmi)))
+
+   if (bmi<16):
+      st.error('You are extremly underweight')
+   elif (bmi>=16) and (bmi<18.5):
+      st.warning('You are underweight')
+   elif (bmi>=18.5) and (bmi<23):
+      st.success('You are Healthy')
+   elif (bmi>=23) and (bmi<30):
+      st.warning('You are overweight')
+   elif (bmi>30):
+      st.error('You are extremly overweight')