All unary arithmetic (and bit-wise) operations have the same priority:
u_expr: power | "-" u_expr | "+" u_expr | "~" u_expr
The unary -
(minus) operator yields the negation of its
numeric argument.
The unary +
(plus) operator yields its numeric argument
unchanged.
The unary ~
(invert) operator yields the bit-wise inversion
of its plain or long integer argument. The bit-wise inversion of
x
is defined as -(x+1)
. It only applies to integral
numbers.
In all three cases, if the argument does not have the proper type, a TypeError exception is raised.