l

app.py

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+import requests
+import streamlit as st
+import json
+
+def get_weather(city):
+    """Gets the current weather forecast for the given city."""
+
+    # Get the API key from OpenWeatherMap.
+    API_KEY = "58bb081f22fea521a4a3cd7ccb24aa88"
+
+    # Make a request to the OpenWeatherMap API.
+    response = requests.get(
+        "https://api.openweathermap.org/data/2.5/weather?q={}&appid={}".format(city, API_KEY)
+    )
+
+    # Check for errors.
+    if response.status_code != 200:
+        raise Exception("Error getting weather data: {}".format(response.status_code))
+
+    # Parse the JSON response.
+    weather_data = json.loads(response.content.decode("utf-8"))
+
+    # Return the current weather forecast.
+    return weather_data["weather"][0]["description"], weather_data["main"]["temp"], weather_data["main"]["pressure"], weather_data["main"]["humidity"]
+
+#main function
+if __name__ == "__main__":
+
+    # Create a title for the app.
+    st.title("Weather Forecast")
+
+    # Get the city name from the user.
+    city = st.text_input("Enter a city name: ")
+
+    # Show the weather forecast for the city.
+    if city:
+        weather_description, temperature, pressure, humidity = get_weather(city)
+
+        # Add a background image.
+        st.markdown(f"""<style>.stApp {{
+             background-image: url("https://images.unsplash.com/photo-1474540412665-1cdae210ae6b?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxzZWFyY2h8Mnx8Y2FsbXxlbnwwfHwwfHx8MA%3D%3D&w=1000&q=80");
+             background-attachment: fixed;
+             background-size: cover
+         }}</style>""",unsafe_allow_html=True)
+
+        # Add a heading.
+        st.header("Weather in **{}** ".format(city))
+
+        # Add a paragraph.
+        st.markdown("The weather in **{}** is **{}** and the temperature is **{}** Kelvin Unit.".format(city, weather_description, temperature))
+        
+        col1, col2, col3 = st.columns(3)
+        
+        # Add a button to convert the temperature to Celsius.
+        with col1:
+            convert_to_celsius = st.button("Convert to Celsius")
+
+        if convert_to_celsius:
+            temperature_in_celsius = float("{:.2f}".format(temperature - 273.15))
+            st.markdown(
+                f"""
+                    The temperature in **{city}** is **{weather_description}** and the temperature is **{temperature_in_celsius}** degrees Celsius.
+                    """
+                )
+
+        #Add button to convert the temperature to Fahrenheit
+        with col2:
+            convert_to_fahrenheit = st.button("Convert to Fahrenheit")
+
+        if convert_to_fahrenheit:
+            temperature_in_fahrenheit = float("{:.2f}".format((temperature - 273.15) * 9 / 5 + 32))
+            st.markdown(
+                f"""
+                    The temperature in **{city}** is **{weather_description}** and the temperature is **{temperature_in_fahrenheit}** degrees Fahrenheit.
+                    """
+                )
+
+        #Add pressure and humidity
+        with col3:
+            p_and_h = st.button("Pressure and Humidity")
+            
+        if p_and_h:
+            st.markdown("The pressure is **{}** hPa and the humidity is **{}**%.".format(pressure, humidity))

requirements.txt

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+streamlit==1.22.0
+altair<5