Type Conversion Functions

In .-… (link to a post where you used these functions). Python provides built-in functions that convert values from one type to an other. The int functions converts any value to an integer, if it can, or complains otherwise:

>>> value = raw_input("Enter a value: ")

Enter a value: 5

>>> type(value)

>>> x=int(value)

>>> type(x)

If the entered value is a string the Python interpreter will give us an error.

>>> value = raw_input("Enter a value: ")

Enter a value: Hello

>>> type(value)

>>> x=int(value)

Traceback (most recent call last):

  File "", line 1, in

ValueError: invalid literal for int() with base 10: 'Hello'

Int can convert floating point numbers to integers although it doesn’t round off, it chops off the fraction part:

>>> x = 4.975

>>> y = int(x)

>>> print x

4.975

>>> print y

4

Float converts integers and strings to floating-point numbers:

>>> x = 32

>>> y = float(32)

>>> print y

32.0

>>> x='32.453'

>>> type(x)

>>> y=float(x)

>>> y

32.453

>>> type(y)

Str function converts its argument to a string:

>>> x = 32

>>> type(x)

>>> y=str(x)

>>> type(y)