Python oct() function takes an integer and returns the octal representation in a string format.
Python oct() Function Syntax
Syntax : oct(x)
Parameters :
- x – Must be an integer number and can be in either binary, decimal or hexadecimal format.
Returns : octal representation of the value.
Errors and Exceptions :
- TypeError : Raises TypeError when anything other than integer type constants are passed as parameters.
Python oct() Function Example
Python3
print(oct(10)) |
Output:
0o12
Example 1: Base conversion from decimal and binary using oct() function
Using oct() to convert numbers from different bases to octal.
Python3
# Binary to Octal print(oct(0b110)) # Hexa to octal print(oct(0XB)) |
Output :
0o6 0o13
Example 2: Python oct() for custom objects
Implementing __int__() magic method to support octal conversion in Math class.
Python3
class Math: num = 76 def __index__(self): return self.num def __int__(self): return self.num obj = Math() print(oct(obj)) |
Output:
0o114
Example 3 : Demonstrate TypeError in oct() method
Python3
# Python3 program demonstrating TypeError print("The Octal representation of 29.5 is " + oct(29.5)) ''' # Python doesn't have anything like float.oct() # to directly convert a floating type constant # to its octal representation. Conversion of a # floating-point value to it's octal is done manually. ''' |
Output :
Traceback (most recent call last):
File "/home/5bf02b72de26687389763e9133669972.py", line 3, in
print("The Octal representation of 29.5 is "+oct(29.5))
TypeError: 'float' object cannot be interpreted as an integer
Applications: Python oct() is used in all types of standard conversion. For example, Conversion from decimal to octal, binary to octal, hexadecimal to octal forms respectively.
