Dy 93: Python Program to Find the Sum of All the Items in a Dictionary

 def sum_of_values(dictionary):

    """

    Calculate the sum of all the values in a dictionary.

    Args:

        dictionary (dict): The dictionary containing numerical values.

    Returns:

        int or float: The sum of all the values.

    """

    return sum(dictionary.values())

my_dict = {"a": 10, "b": 20, "c": 30}

total_sum = sum_of_values(my_dict)

print(f"The sum of all values in the dictionary is: {total_sum}")

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Code Explanation:

def sum_of_values(dictionary):

This line defines a function named sum_of_values that takes one parameter called dictionary. This function is designed to calculate the sum of all the values in the given dictionary.

"""

A docstring (comment between triple double quotes) is used to explain the purpose of the function. It mentions:

The purpose of the function: "Calculate the sum of all the values in a dictionary."

The parameter (dictionary), which is expected to be a dictionary with numerical values.

The return value, which will either be an integer or a float (depending on the type of values in the dictionary).

return sum(dictionary.values())

The function uses the built-in sum() function to calculate the sum of all values in the dictionary.

dictionary.values() extracts all the values from the dictionary (e.g., [10, 20, 30] for {"a": 10, "b": 20, "c": 30}).

The sum() function adds these values together and returns the total (in this case, 10 + 20 + 30 = 60).

my_dict = {"a": 10, "b": 20, "c": 30}

This line creates a dictionary named my_dict with three key-value pairs:

Key "a" has a value of 10.

Key "b" has a value of 20.

Key "c" has a value of 30.

total_sum = sum_of_values(my_dict)

The sum_of_values function is called with my_dict as its argument.

Inside the function, the values [10, 20, 30] are summed up to give 60.

The result (60) is stored in the variable total_sum.

print(f"The sum of all values in the dictionary is: {total_sum}")

The print() function is used to display the result in a formatted string.

The f-string allows the value of total_sum (which is 60) to be directly inserted into the string.

Output:

The sum of all values in the dictionary is: 60