Create median_mean_testing.py

Wanted to work through assembling a couple functions to find the median and mean of List elements.  This is that "worksheet" script.

Author: mccright

median_mean_testing.py

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+import datetime
+from zoneinfo import ZoneInfo
+import statistics
+
+def are_list_elements_numbers(list):
+    """
+    DESCRIPTION: Check if list contains only numbers.
+    INPUT:
+    OUTPUT:
+    """
+    for item in list:
+        return_value: bool = ""
+        if isinstance(item, int):
+            return_value = True
+        elif isinstance(item, float):
+            return_value = True
+        else:
+            return False
+    if return_value == True:
+        return True
+    
+def get_median_with_statistics(list):
+    return statistics.median(list)
+
+def get_median_with_code(list):
+    """
+    DESCRIPTION: 
+    Calculate the median as described in https://en.wikipedia.org/wiki/Median
+    Model from: https://www.codingem.com/python-calculate-median/
+    Function steps:
+    1. Accept a list as input.
+    2. Sorts the list.
+    3. If the list length is odd.
+        a. Get the mid-value, then return it.
+    4. If the list length is even.
+        b. Get the two middle values, calculate their average, then return that.
+	INPUT: list
+	RETURN: value
+	"""
+    sorted_list = sorted(list)
+    list_length = len(sorted_list)
+    middle = (list_length - 1) // 2
+    if middle % 2:
+        return sorted_list[middle]
+    else:
+        return (sorted_list[middle] + sorted_list[middle + 1]) / 2.0
+
+def get_average_with_code(list):
+    return sum(list) / len(list)
+
+def get_average_with_statistics(list):
+    return statistics.mean(list)
+
+
+if __name__ == '__main__':
+# Example usage:
+    # numbers = [1, 2, 3, 4, 5, 6, 7]
+    # numbers = ["a", 1, 2.2, 3.14, 4, 5, 6, 7]
+    # numbers = [1, 4, 3, 2, 1, 3, 7, 1, 4, 1]
+    # numbers = [1, 1024, 4, 3, 2, 1, 3, 7, 1, 4, 1]
+    numbers = [1, 61, 2, 127, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 1024]
+    # numbers = [55251, 59, 18, 63, 34, 17, 17, 48, 26, 16, 38, 21, 22, 50, 45, 12, 10, 8, 58, 15, 3, 56, 33, 4, 47, 36, 26, 51, 65, 8, 33, 70, 39, 34, 35, 2, 44, 1, 55, 31, 61, 3, 19, 45, 39, 28, 35, 23, 18, 6, 61, 5, 4, 14, 26, 57, 41, 22, 4, 18, 24, 28, 58, 52, 61, 6, 49, 57, 51, 10, 19, 6, 34, 40, 19, 55, 32, 14, 67, 47, 6, 25, 32, 21, 419, 228, 47, 186, 245, 284, 583, 522, 611, 60, 499, 578, 517, 106, 195, 64, 343, 402, 191, 155, 332]
+    # numbers = ["a", "b", "c", "d", "e", "f"]
+    if (are_list_elements_numbers(numbers)) == True:
+        us_central_dt = datetime.datetime.now(tz=ZoneInfo("America/Chicago")).strftime('%Y-%m-%d %I:%M:%S%P %Z')
+        print(f"Test run at: {us_central_dt}")
+        # print(f"{datetime.datetime.today().strftime('%Y-%m-%d %I:%M:%S%P %Z')}")
+        average = get_average_with_code(numbers)
+        print(f"list = {numbers}")
+        print(f"The list contains {len(numbers)} elements")
+    
+        median = get_median_with_code(numbers)
+        print(f"median value using code =       {median:.2f}")
+        median = get_median_with_statistics(numbers)
+        print(f"median value using statistics = {median:.2f}")
+
+        average = get_average_with_code(numbers)
+        print(f"average value using code =       {average:.2f}")
+        average = get_average_with_statistics(numbers)
+        print(f"average value using statistics = {average:.2f}")
+    else:
+        print(f"Something went wrong.  Your list must contain only int and/or float elements.\r\nThe list = {numbers}")