Define a function named sum_values with two parameters. The first parameter will be a list of dictionaries (the data). The second parameter will be a string (a key). Return the sum of the dictionaries' values associated with the second parameter. You SHOULD NOT assume that all of the dictionaries in the first parameter will have the second parameter as a key. If none of the dictionaries have the second parameter as a key, your function should return 0. Sample function call: sum_values(data, 'estimated_annual_kwh_savings') sum_values_by_year

Acompany is hiring professionals for web designing. the firm is small with few resources. they want employees who possess problem-solving skills and can independently carry out responsibilities. which kind of employee should they select?

How can smart devices benefit businesses, organizations, and social communities in the global marketplace?

7.23 main lab 7 - online shopping cart background this main lab extends the earlier prep lab "online shopping cart part 1". (you should save this as a separate project from the earlier prep lab). you will create an on-line shopping cart like you might use for your on-line purchases. the goal is to become comfortable with setting up classes and using objects. requirements this lab can be done individually or as pair programming. expanded itemtopurchase class (15 points) extend the itemtopurchase class as follows. we will not do unit testing in this lab so we will not be giving you the names of the member functions. create good ones on your own. create a parameterized constructor to assign item name, item description, item price, and item quantity (default values of "none" for name and description, and 0 for price and quantity). additional public member functions set an item description get an item description print the cost of an item - outputs the item name followed by the quantity, price, and subtotal (see example) print the description of an item - outputs the item name and description (see example) additional private data members a string for the description of the item. example output of the function which prints the cost of an item: bottled water 10 @ $1.50 = $15.00 example output of the function which prints the item description: