Python OOPs

Python SQLite

Examples

Others

Python OOPs

Python SQLite

Examples

Others



Python Data Types


Data types are categories of data that define the type of value a variable can hold. Python data types are classes and variables are instances (objects) of these classes. Python is dynamically typed, meaning you don't need to declare the type explicitly.

Data Types
Numeric Integer , float , complex
Sequences list , tuple , range
Boolean True or False
Mapping Dict
Set Type set,frozenset

1.Numeric Type

The Numeric data types are used to store numerical values. There are three primary numeric data types:

  • Integer - An integer is a whole number without a decimal point that can be positive, negative, or zero

  • Float - Float is used to store single-precision floating point numbers.

  • Complex - Complex number is a combination of a real number and an imaginary number.

Example 
x = 20
y = 12.8
z = 2+3j

print(x) #int
print(y) #float
print(z) #complex

print(type(x)) 
print(type(y)) 
print(type(z))
Output 
20 
12.8
(2+3j) 
<class 'int'>
<class 'float'>
<class 'complex'>

2. Sequence Type

The sequence Data type is the allow storing of multiple values in an oraganized fashion.Its Contains List,tuple and strings.

  • Strings - A String is textual data using single quotes,double quotes or enclosed in quotes

  • List - A list is used to store the multiple items in one item .It is mutable or changeable and ordered sequence of elements.

  • Tuples - Tuples is Collection of objects separated by commas.

Example 
x = "Hello World"
y = ["Hii","Hello"]
z = ("How","Are","You")

print(x)
print(y)
print(z)
print("\n")

print(type(x))
print(type(y))
print(type(z))
Output 
Hello World
['Hii', 'Hello']
('How', 'Are', 'You')

<class 'str'>
<class 'list'>
<class 'tuple'>

3. Boolean Type

Boolean expressions are the expressions that evaluate a condition and result in a Boolean value.Its contains True or False

Example 
print(40 > 30) # if 30 is greater than 40 
print(1 == 0)  #if 1 value is equal to 0
Output 
True
False

4. Mapping Type

Dict - Key-value pairs for mapping unique keys to values

Example 
dict =    {
  "Student": "Kumar",
  "Standard": "10TH",
  "Section": "A",
}
print(dict)
Output 
{'Student': 'Kumar', 'Standard': '10TH', 'Section': 'A'}

5. Set Type

Sets are used to store the several items in a single variable. It is one of the four built-in data types (List, Dictionary, Tuple, and Set) having qualities and usage different from the other three

Example 
cars = {"Scorpio", "kia", "Innova "}
print(cars)
Output 
{'kia', 'Innova ', 'Scorpio'}