Update app.py

app.py

@@ -1,34 +1,40 @@
 import streamlit as st
 
 def convert_temperature(value, from_unit, to_unit):
-  """Converts temperature between Celsius and Fahrenheit."""
-  if from_unit == "Celsius":
-    if to_unit == "Fahrenheit":
-      return (value * 9/5) + 32
+    """Converts temperature between Celsius, Fahrenheit, and Kelvin."""
+    if from_unit == "Celsius":
+        if to_unit == "Fahrenheit":
+            return (value * 9/5) + 32
+        elif to_unit == "Kelvin":
+            return value + 273.15
+        else:
+            return value  # No conversion needed for Celsius to Celsius
+    elif from_unit == "Fahrenheit":
+        if to_unit == "Celsius":
+            return (value - 32) * 5/9
+        elif to_unit == "Kelvin":
+            return (value + 459.67) * 5/9
+        else:
+            return value  # No conversion needed for Fahrenheit to Fahrenheit
+    elif from_unit == "Kelvin":
+        if to_unit == "Celsius":
+            return value - 273.15
+        elif to_unit == "Fahrenheit":
+            return (value * 9/5) - 459.67
+        else:
+            return value  # No conversion needed for Kelvin to Kelvin
     else:
-      return value  # No conversion needed for Celsius to Celsius
-  elif from_unit == "Fahrenheit":
-    if to_unit == "Celsius":
-      return (value - 32) * 5/9
-    else:
-      return value  # No conversion needed for Fahrenheit to Fahrenheit
-  else:
-    raise ValueError("Invalid temperature unit")
+        raise ValueError("Invalid temperature unit")
 
 st.title("Temperature Converter")
 
-# Input temperature value
-temperature_value = st.number_input("Enter temperature:", min_value=-273.15, step=0.1)  # Allow negative values for Kelvin
-
-# Dropdown menus for unit selection
-unit_options = ["Celsius", "Fahrenheit"]
-from_unit = st.selectbox("From Unit:", options=unit_options)
-to_unit = st.selectbox("To Unit:", options=unit_options)
+with st.container():
+    col1, col2 = st.columns(2)
+    with col1:
+        temperature_value = st.number_input("Enter temperature:", min_value=-273.15, step=0.1)
+    with col2:
+        from_unit = st.selectbox("From Unit:", options=["Celsius", "Fahrenheit", "Kelvin"])
+        to_unit = st.selectbox("To Unit:", options=["Celsius", "Fahrenheit", "Kelvin"])
 
-# Convert button
-if st.button("Convert"):
-  try:
-    converted_value = convert_temperature(temperature_value, from_unit, to_unit)
-    st.success(f"{temperature_value} {from_unit} is equal to {converted_value:.2f} {to_unit}")  # Display result with 2 decimal places
-  except ValueError as e:
-    st.error(f"Error: {e}")
+converted_value = convert_temperature(temperature_value, from_unit, to_unit)
+st.write(f"{temperature_value} {from_unit} is equal to {converted_value:.2f} {to_unit}")