L2 VARIABLES AND DATATYPES

#beginners #programming #python #tutorial

WAYS TO USE SINGLE QUOTES , DOUBLE QUOTES AND TRIPLE QUOTES IN A STRING

NOTE -

Multi - line string can only be stored in triple quotes.
If you want some inverted commas to be the part of your string then you can use triple quotes.

L-2 , 50:00

METHOD TO IDENTIFY THE DATATYPE OF VARIABLE

use type function

NOTE -
From datatype of variable 'd' you can clearly figure out that if you store any datatype inside quotes in any variable then that datatype will be considered as string only

OPERATORS IN PYTHON

ARITHMETIC OPERATORS - These are used to perform arithmetic operations on variables
ARITHMETIC OPERATORS ARE +,-,/,* etc

NOTE -
From the above example we can see that whenever we perform division operation on 2 numbers in python then it returns the answer in float datatype

And dont forget to use the higlighted comma in between otherwise it will show error

ASSIGNMENT OPERATORS - These are used to assign a value to the variable
ASSIGNMENT OPERATORS ARE =,+=,-=,/=,*= etc

*COMPARISON OPERATOR * - These are used to compare two expressions and tell whether it is true or false .
COMPARISON OPERATORS ARE ==,>,>=,<,<=,!=

*LOGICAL OPERATOR * - Logical operators in python are used on conditional statements i.e. on true and false
Logical operators are and , or , not

and returns true if both the values are true
or returns true if any one of the values is true
not makes true , false and false , true

TYPE FUNCTION AND TYPECASTING

*TYPE CASTING INT TO FLOAT AND STRING*

TYPECASTING FLOAT TO INT AND STRING

TYPECASTING STR TO INT AND FLOAT

NOTE - **
**If the string contains decimal point then you cannot directly typecaste it into integer datatype , you first need to convert it into float and then to integer