Create app.py

app.py

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+import streamlit as st
+
+def main():
+    st.title("Temperature Converter")
+    st.write("Convert temperatures between Celsius, Fahrenheit, and Kelvin.")
+
+    # Input fields
+    temperature = st.number_input("Enter the temperature to convert", value=0.0)
+    from_unit = st.selectbox("From Unit", ["Celsius", "Fahrenheit", "Kelvin"])
+    to_unit = st.selectbox("To Unit", ["Celsius", "Fahrenheit", "Kelvin"])
+
+    # Perform conversion
+    if st.button("Convert"):
+        try:
+            converted_temperature = convert_temperature(temperature, from_unit, to_unit)
+            st.success(f"{temperature} {from_unit} = {converted_temperature:.2f} {to_unit}")
+        except ValueError as e:
+            st.error(e)
+
+def convert_temperature(value, from_unit, to_unit):
+    """Converts temperature between Celsius, Fahrenheit, and Kelvin."""
+    if from_unit == to_unit:
+        return value
+
+    # Convert to Celsius first
+    if from_unit == "Fahrenheit":
+        value = (value - 32) * 5 / 9
+    elif from_unit == "Kelvin":
+        value = value - 273.15
+
+    # Convert from Celsius to target unit
+    if to_unit == "Fahrenheit":
+        return value * 9 / 5 + 32
+    elif to_unit == "Kelvin":
+        return value + 273.15
+    else:  # to_unit == "Celsius"
+        return value
+
+if __name__ == "__main__":
+    main()