Syntax
object.__invert__(self)
Background Bitwise NOT ~
Python’s bitwise NOT operator ~x
inverts each bit from the binary representation of integer x
so that 0 becomes 1 and 1 becomes 0. This is semantically the same as calculating ~x == -x-1
. For example, the bitwise NOT expression ~0
becomes -1
, ~9
becomes -10
, and ~32
becomes -33
.
Example Custom __invert__()
class Data: def __invert__(self): return 'finxter' x = Data() print(~x) # finxter
TypeError: bad operand type for unary ~: ‘…’
class Data: pass x = Data() print(~x)
Traceback (most recent call last): File "C:\Users\xcent\Desktop\code.py", line 7, in <module> print(~x) TypeError: bad operand type for unary ~: 'Data'
class Data: def __invert__(self): return 'finxter' x = Data() print(~x) # finxter
Where to Go From Here?
Enough theory. Let’s get some practice!
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