Create app.py

app.py

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+import streamlit as st 
+
+st.title('Welcome to the 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 extremely Underweight')
+    elif (bmi >=16 and bmi<18.5):
+        st.warning('You are Underweight')
+    elif (bmi>=18.5 and bmi<25):
+        st.success('Healthy')
+    elif (bmi>=25 and bmi<30):
+        st.warning('Overweight')
+    elif (bmi>=30):
+        st.error('Extremely overweight')