Sumita Arora Solution

String are set of characters that are stored as individual characters in contiguous memory locations and indexed in two ways. Internal structure of string is given below:

pass is a null statement when executed by python interpreter returns nothing. for example we have a loop in our program and we want to implement it in future, so we construct it using pass statement. L = [1,2,3,4,6,7]for i in L:    pass

Entry controlled loops are types of loop which check the condition at the beginning of iteration. for and while both are entry controlled loop.

(1) It saves memory space as in immutable types variable names are stored as reference to value object. (2) It is very useful to use as constant which remains same through out the program (3) Immutable data are quicker to access then mutable data.

Implicit type conversion is done internally by python interpreter and explicit type conversion is done by user or program using type casting operator or method.

Mutable types are those whose values can be changed, added or deleted in place. Some mutable types are-integers, boolean, string, tuple etc. Immutable types are those whose values once assigned can not be changed in place. Some immutable types are- list, dictionaries, sets

Data types are keywords which determines the type of data to be stored in a variable. It is important as it helps a program to manage memory efficiently and keep different types of data separate to process them precisely.Ans 14.Two types of Integers are supported in Python: (1) Integers (2) Boolean

blocks are set of statements which can be part of another statement or function in a program. Indentation is a way to telling that a set of statement belongs to particular block by placing statement further right or left. Indentation helps a python program to understand them in which order each block or statement should

Variables are defined memory location which can contain a value. It provides data with label to program and user so they can understand it clearly and value stored in variable can be used later by program whenever required.

A Python program can contain various components like Expressions Statements Comments Functions Blocks Indentation