On Mon, Oct 4, 2021 at 5:17 AM Hongyi Zhao <hongyi.z...@gmail.com> wrote:
> > > That’s just the way Python’s syntax works. Operators are not names that > can be resolved to objects that can be compared with the `is` operator. > Instead, when that operator is evaluated in an expression, the Python > interpreter will look up a specially-named method on the operand object (in > this case `__invert__`). Numpy array objects implement this method using > `np.invert`. > > If so, which is symlink to which, I mean, which is the original name, > and which is an alias? > "symlink" and "alias" are probably not the best analogies. The implementation of `np.ndarry.__invert__` simply calls `np.invert` to do the actual computation. -- Robert Kern
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