Add check-weather branch with new code and unittest

check_weather.py

@@ -0,0 +1,39 @@
+def check_weather(weather):
+    """
+    This function checks the type of weather and gives a response.
+    It accepts one parameter:
+    - weather: A string representing the weather (sunny, rainy, snowy, cloudy).
+
+    It prints a message based on the weather type.
+    """
+    if weather == "sunny":
+        print("It's bright today!")
+    elif weather == "rainy":
+        print("Take an umbrella.")
+    elif weather == "snowy":
+        print("It’s snowing!")
+    elif weather == "cloudy":
+        print("The sky is gray.")
+    else:
+        print("I don't know this weather.")
+
+def ask_weather():
+    """
+    This function asks the user for the weather condition and 
+    calls the check_weather function to respond.
+    It does not accept any parameters.
+    """
+    weather = input("How is the weather? (sunny, rainy, snowy, cloudy) ").lower()
+    check_weather(weather)
+
+def main():
+    """
+    The main function is the entry point of the program.
+    It starts the process of asking the user for weather information.
+    """
+    print("Let’s talk about the weather!")
+    ask_weather()
+
+# Start the program
+main()
+