`numpy._core.einsumfunc:_parse_einsum_input`

Signature

def _parse_einsum_input ( operands )

A reproduction of einsum c side einsum parsing in python.

input_strings : str: Parsed input strings
output_string : str: Parsed output string
operands : list of array_like: The operands to use in the numpy contraction

The operand list is simplified to reduce printing:

np.random.seed(123)
a = np.random.rand(4, 4)
b = np.random.rand(4, 4, 4)
_parse_einsum_input(('...a,...a->...', a, b))

_parse_einsum_input((a, [Ellipsis, 0], b, [Ellipsis, 0]))