Q- how to Print Hello World print("Hello World") Variables in python ------- age = 30 #variable should be intutive so that we can learn any time print(age) Note: Shift+Enter is shortcut to run command 2) ' #' this is for writing the comment in python Rules for Variables--- Variable can not be start with any number like - 1age Number can use in between and end with variable like - age1 age2 Special characters are not allowed expect _ (underscore) like - age_my Space not allowed in variable Python is case sensitive Way to define Variable --- age1,age2 = 30,25 age1 = 30 age2 = 25 age1=age2=30 #if 30 age for both variable >> Data type the type of data is basically data type Integer = age1 to age3 is basically integer , Integer is basically full number lets check = type(age1) #it will give u print int float= basically decimal values Interest = 30.24 type(Interest) #answer is float Message = ...