Binary, octal and hexadecimal values in Python

Binary representation

Prefixed with 0b or 0B:

x = 0b111

Octal representation

Prefixed with 0o or 0O:

y = 0o77

Hexadecimal representation

Prefixed with 0x or 0X:

z = 0xff

Converting int to binary, octal and hexadecimal strings representation

For this, there are functions bin(), oct() and hex().

Convert to binary:

>>> bin(13)
'0b1101'

Convert to octal:

>>> oct(98)
'0o142'

Convert to hexadecimal:

>>> hex(367)
'0x16f'

Converting binary, octal and hexadecimal strings to int

For this, you need to specify base to int() function

Convert binary string to int:

>>> print(int('0b1101', 2))
13

Convert octal string to int:

>>> print(int('0o142', 8))
98

Convert hexadecimal string to int:

>>> print(int('0x16f', 16))
367