Comparing values of a list of dictionaries-CodePudding

I would like to itterate through a list of dictionaries and check every Quantity key and compare the values and then print/display the Dictionary with the highest quantity value.

For example. This is my list of dictionaries. I have multiple keys and values and I want to compare the Quantity Values of each Dictionary. I then want to display only the Dictionary that has the highest value.

List_of_dict = [{'Country': 'China', 'Code': BHK234, 'Product': 'Nike Air','Price': '1245', 'Quantity': '12'}, {'Country': 'South Africa', 'Code': BAK274, 'Product': 'Nike Air 1','Price': '1945', 'Quantity': '34'}]

CodePudding user response：

you can use this example with your code

list_of_dict.sort(key=lambda x: x['Quantity'], reverse=True)
max_dicts = [d for d in list_of_dict if d['Quantity'] == list_of_dict[0]['Quantity']]

CodePudding user response：


products = [{'Country': 'China', 'Code': 'BHK234', 'Product': 'Nike Air','Price': '1245', 'Quantity': '12'}, {'Country': 'South Africa', 'Code': 'BAK274', 'Product': 'Nike Air 1','Price': '1945', 'Quantity': '34'}]

quantities = [i["Quantity"] for i in products]
print(products[quantities.index(max(quantities))])

To get the the highest quantity value from a list of dictionaries, you can just iterate through the list, collect the quantities, get the index of the highest value and use that to get the dictionary.

CodePudding user response：

You can use python built-in function max() with a custom function that will provide a custom key for item comparison in your list:

list_of_dicts = [{'Country': 'China', 'Code': 'BHK234', 'Product': 'Nike Air','Price': '1245', 'Quantity': '12'}, {'Country': 'South Africa', 'Code': 'BAK274', 'Product': 'Nike Air 1','Price': '1945', 'Quantity': '34'}]
print(max(list_of_dicts, key=lambda x: x['Quantity']))

will ouput

{'Country': 'South Africa', 'Code': 'BAK274', 'Product': 'Nike Air 1', 'Price': '1945', 'Quantity': '34'}