Data Types

 AFTER COMPLETION EXCERCISE: https://www.w3schools.com/python/exercise.asp?filename=exercise_datatypes1

Python - Data Types

Python Data Types are used to define the type of a variable. It defines what type of data we are going to store in a variable. The data stored in memory can be of many types. For example, a person's age is stored as a numeric value and his or her address is stored as alphanumeric characters.

Python has the following data types built-in by default, in these categories:

Text Type:	str
Numeric Types:	int, float, complex
Sequence Types:	list, tuple, range                                             Data Types in Python MyVar1 = "Some Text" # This is a text or String print(MyVar1) MyVar2 = 12 # This is an integer print(MyVar2) Different Data Types in Python Data Type To Change Denoted by String str() ” “ Integer int() None Float float() None Lists list() [“a”,”b”] Tuples tuple() (“a”,”b”) Dictionary dict(name = “somename”,work =”somework”) {“a”:”b”,”c”:”d”} Boolean bool(1) True / False Sets set((“a”,”b”)) {“a”,”b”,”c”} Data Types in Python #Different Data Types stored in some variables somestr   = "anyname" someint   = 12 somefloat = 15.25 sometuple = ('abc', 'xyz', 'mno') somedict  = {"abc":"bcd","cde":"def"} somebool  = true someset   = {'abc', 'xyz', 'mno'} Now let’s dig all the data types one by one. Strings in Python Strings Literals To make a string in python you need to include the text between quotes You can Use either single quotes or double quotes. Like of the example given below Example: Datatypes # Can use either single or double quotes print("Using double quotes") print('Using single quotes') Single Line – Strings in Variables You can easily assign string values to variables Create a variable and set its value to a string with using single or multiple quote as discussed earlier Single Line Strings # Can use either single or double quotes dblQuoteVar = "Using double quotes" singleQtVar = "Using single quotes" print(dblQuoteVar) print("and") print(singleQtVar) Multi-Line – Strings in Variables These were the single line strings stored in a variable(s). Now we will How to store multiline strings as variables. Multi-Line - Strings in Variables multilineString = """ This is a multiline string This is using three double quotes we can also three single quotes \n """ print(multilineString) # or multiline_single = ''' This is a multiline string This is using three double quotes we can also three single quotes ''' print(multiline_single) Note: “\n” character is used to give a line break, A new line starts after “\n” and hence its also known as New Line Character. ---------------------------------------------- Setting the Data Type In Python, the data type is set when you assign a value to a variable: Example Data Type Try it x = "Hello World" str Try it » x = 20 int Try it » x = 20.5 float Try it » x = 1j complex Try it » x = ["apple", "banana", "cherry"] list Try it » x = ("apple", "banana", "cherry") tuple Try it » x = range(6) range Try it » x = {"name" : "John", "age" : 36} dict Try it » x = {"apple", "banana", "cherry"} set Try it » x = frozenset({"apple", "banana", "cherry"}) frozenset Try it » x = True bool Try it » x = b"Hello" bytes Try it » x = bytearray(5) bytearray Try it » x = memoryview(bytes(5)) memoryview Try it » x = None NoneType Try it » ADVERTISEMENT Setting the Specific Data Type If you want to specify the data type, you can use the following constructor functions: Example Data Type Try it x = str("Hello World") str Try it » x = int(20) int Try it » x = float(20.5) float Try it » x = complex(1j) complex Try it » x = list(("apple", "banana", "cherry")) list Try it » x = tuple(("apple", "banana", "cherry")) tuple Try it » x = range(6) range Try it » x = dict(name="John", age=36) dict Try it » x = set(("apple", "banana", "cherry")) set Try it » x = frozenset(("apple", "banana", "cherry")) frozenset Try it » x = bool(5) bool Try it » x = bytes(5) bytes Try it » x = bytearray(5) bytearray Try it » x = memoryview(bytes(5)) memoryview Try it »