Python Dictionaries

In this video I discussed about the builtin datatype in Python Dictionaries.
And solved the questions using dictionaries to demonstrate the usage of dictionary.

1)Create a dictionary of countries and their capitals. Ask the user to enter a country, and return the capital of that country. If the country is not in the dictionary, return "Sorry, we don't have information about that country."
2)Write a program to find the word frequency in a given sentence using a dictionary. For example, if the sentence is "I love python programming language", the output should be a dictionary with each word as a key and its frequency as the value.
3)Write a program to find the maximum value in a dictionary.
4)Create a dictionary containing the names of students and their scores in a class. Write a program to print the name and score of the student with the highest score.
5)Create a dictionary containing the names of fruits and their prices. Write a program to print the total cost of purchasing 5 bananas, 3 apples, and 2 mangoes.
6)Write a Python program to print a dictionary in table format. For example:

students = [
{"name":'Alice',"age":12,"gender":'female'},
{"name":'Bob',"age":15,"gender":'male'},
{"name":'Charlie',"age":11,"gender":'male'},
{"name":'David',"age":13,"gender":'male'},
{"name":'Emma',"age":16,"gender":'female'},
]