Python Programming in 30 Days Day -6

Python
Programming in 30 Days

Day -6

Python Assert Keyword
Python assert keyword is defined as a debugging tool that tests a condition. For example, while writing a division function, the divisor should not be zero, and you assert that divisor is not equal to zero.


x = "hello"

#if condition returns False, AssertionError is raised:
assert x == "goodbye", "x should be 'hello'“

Python Statistics Module

Python statistics module provides the functions to mathematical statistics of numeric data. There are some popular statistical functions defined in this module.

Mean() - The mean() function is used to calculate the arithmetic mean of the numbers in the list.
Median() - The median() function is used to return the middle value of the numeric data in the list.
Mode() - The mode() function returns the most common data that occurs in the list.

Python Stack and Queue

Data structure organizes the storage in computers so that we can easily access and change data.
Stack
A Stack is a data structure that follows the LIFO(Last In First Out) principle. To implement a stack, we need two simple operations:

Push - It adds an element to the top of the stack.
Pop - It removes an element from the top of the stack.

Queue
A Queue follows the First-in-First-Out (FIFO) principle.
Enqueue - It adds an element to the end of the queue.
Dequeue - It removes the element from the beginning of the queue.