Python Data Types

PYTHON DATA TYPES😄

Types of data types

1️⃣ Numeric data types
int

• An integer, is a whole number, positive or negative, without decimals, of unlimited length.

 numbers = 20
 print(numbers)
 print(type(numbers)) 

float

• A float is a number, positive or negative, containing one or more decimals.

 my_float = 20.5
 print(float)
 print(type(float)) 

complex

• A complex is a number made up of some parts that are unknown

 my_complex = 1j
 print(my_complex)
 print(type(my_complex)) 

2️⃣ Sequence Types
lists

• Lists are used to store multiple items in a single variable.
• Take note of the square brackets
• Unlike a set, a list can allow duplicate values
• They can contain different data types

 fruits = ["apple", "banana", "cherry"]
 print(fruits)
 print(type(fruits)) 

tuple

• Tuples are used to store multiple items in a single variable.
• Take note of the round brackets
• Unlike lists, tuples are unchangeable.
• Allows duplicate members.

 cars = ("toyota", "porsche", "mercedes")
 print(cars)
 print(type(cars)) 

range

• A range is a sequence of numbers starting from 0 by default and increments by one

 my_range = range(6)
 print(my_range)
 print(type(my_range)) 

3️⃣ Mapping types

dict

• Dictionaries are used to store data values in key:value pairs.
• Dictionaries are ordered and changeable
• Like sets they do not allow duplication of items

 my_dict = {"name" : "John", "age" : 36}
 print(my_dict)
 print(type(my_dict)) 

4️⃣ Set types
set

• Sets are used to store multiple items in a single variable.
• Sets are unindexed, unordered and unchangeable however you can add or remove items from a set
• Sets also do not allow duplicates
• Take note of the curly braces

my_set = {"gold", "silver", "titanium"}
print(my_set)
print(type(my_set)) 

frozen set

• Similar to a set but completely immutable; you cannot add or remove items

my_frozenset = frozenset({"apple", "banana", "cherry"})
print(my_frozenset)
print(type(my_frozenset)) 

5️⃣ Boolean types
boolean

• A boolean is a value that can be true or false

my_bool = True
print(my_bool)
print(type(my_bool)) 

6️⃣ Binary types
bytes

• Bytes represent an immutable sequence of 8-bit values

z = b"Hello"
print(z)
print(type(z)) 

bytesarray

• Bytesarray represents a mutable sequence of 8-bit values.

my_bytearray = bytearray(5)
print(my_bytearray)
print(type(my_bytearray)) 

memoryview

• A memoryview object provides a view into the memory of a bytes-like object (like bytes or bytearray) without copying the underlying data.

my_memoryviews = memoryview(bytes(5))
print(my_memoryviews)
print(type(my_memoryviews)) 

7️⃣ None types
NoneTypes

• This is simply a data type that represents an absence of value

z = None
print(z)
print(type(z)) 

8️⃣ Text types
string

• A string is a collection of characters

greetings = "Hello World"
print(greetings)
print(type(greetings))