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Python | oct method

Built-in Functions
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Documentation
schedule Jul 1, 2022
Last updated
local_offer Python
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Python's oct(~) method converts an integer number to an octal string prefixed with "0o". If the provided input is not an integer, it must implement a __index__() method to return an integer.

Parameters

1. x | integer

The integer number to convert to an octal string.

Return value

The converted octal string of the integer prefixed with "0o".

Examples

Basic usage

To return the octal string for 87:

oct(87)
'0o127'

Note that "0o" just indicates that it is an octal string.

__index__() method

To use oct(~) method with input that implements __index__() method:

class score:
james = 20
sally = 40
tom = 30
def __index__(self):
return self.james + self.sally + self.tom
oct(score())
'0o132'

We provide an instance of score class as input to the oct(~) method. Although the instance itself is not an integer, as it returns an integer (sum of james + sally + tom) which in this case is 90, oct(~) returns the octal string for 90.

TypeError

If we provide input other than an integer:

oct('Hi')
TypeError: 'str' object cannot be interpreted as an integer
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Published by Arthur Yanagisawa
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