Binary operations

Elementwise bit operations

bitwise_and(x1, x2, /[, out, where, ...]) Compute the bit-wise AND of two arrays element-wise.
bitwise_or(x1, x2, /[, out, where, casting, ...]) Compute the bit-wise OR of two arrays element-wise.
bitwise_xor(x1, x2, /[, out, where, ...]) Compute the bit-wise XOR of two arrays element-wise.
invert(x, /[, out, where, casting, order, ...]) Compute bit-wise inversion, or bit-wise NOT, element-wise.
left_shift(x1, x2, /[, out, where, casting, ...]) Shift the bits of an integer to the left.
right_shift(x1, x2, /[, out, where, ...]) Shift the bits of an integer to the right.

Bit packing

packbits(myarray[, axis]) Packs the elements of a binary-valued array into bits in a uint8 array.
unpackbits(myarray[, axis]) Unpacks elements of a uint8 array into a binary-valued output array.

Output formatting

binary_repr(num[, width]) Return the binary representation of the input number as a string.

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https://docs.scipy.org/doc/numpy-1.13.0/reference/routines.bitwise.html