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In this article I'm going Β to start writing about Typecasting in python. for that i simply start up with the basics of specifying a variable type...In next article we will briefly discuss about typeconversion and its types

Introduction - Typecasting

Specify a Variable Type

There may be times when you want to specify a type on to a variable. This can be done with casting. Python is an object-orientated language, and as such it uses classes to define data types, including its primitive types.

Casting in python is therefore done using constructor functions:

  • int() - constructs an integer number from an integer literal, a float literal (by rounding down to the previous whole number), or a string literal (providing the string represents a whole number)
  • float() - constructs a float number from an integer literal, a float literal or a string literal (providing the string represents a float or an integer)
  • str() - constructs a string from a wide variety of data types, including strings, integer literals and float literals

Example

Integers:

x = int(1)

y = int(2.8)

z = int("3")

print(x)

print(y)

print(z)Β 

Copy

Output:

1 2 3 Β  Β Β 

Example

Floats:

x = float(1)

y = float(2.8)

z = float("3")

w = float("4.2")

print(x)

printt(y)

print(z)

print(w)Β 

Copy

Output:

1.0

2.8

3.0

4.2Β 

Example

Strings:

x = str("s1")

y = str(2)

z = str(3.0)

print(x)

print(y)

print(z)Β 

Copy

Output:

s1

2

3.0