Variables in Python and checking the type of variable

What are Variables?

Variables are nothing but the reserved memory locations where you can store some values. When a variable is created it automatically allocates some memory for itself.

How declaration in python is different from other programming languages??

If you have been to other programming languages previously like java ,c or c++ then you need to give the datatype of the variable you want to use. But Python is a bit more flexible and intelligent you need not to specify the datatype of variable, python will automatically detect the datatype of variable will perform the operations accordingly.Python variables do not need explicit declaration to reserve memory space.

Assigning values to variables 

You can simply assign values to variables by just putting an equals to(=) sign between variable and value.You can simply create a python file in pycharm 

eg.

 a=10  # An integer variable

 b=45.67 # floating point variable

 c="Hii this is a string "

 print(a)
 print(b)
 print(c)

10

45.67

Hii this is a string

Multiple Assignments

You can assign multiple values to different variables

eg.

 a=b=c=10                     # integer variables print(a)
 print(b)
 print(c)

Output:

10

10

10

eg.

 a,b,c=10,20,30                     # An integer variable print(a)
 print(b)
 print(c)

Output:

10

20

30

How to check the type of variables?

To check the type of variable use we can simply use a built-in method called type().

SYNTAX:

type(object)
type(name, bases, dict)

We will understand it more clearly using examples:

eg.

a=10  # An integer variable
b=45.67 # floating point variable

c="Hii this is a string "
d=[1,2,4]


e={}

print(type(a))
print(type(b))
print(type(c))
print(type(d))
print(type(e))

Output:

<class 'int'>

<class 'float'>

<class 'str'>

<class 'list'>

<class 'dict'>

Here we can see that type() method is returning the type of variables used in program