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Python code to slice with step is not supported.
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Here is a Python code to slice with step is not supported

import numpy as np

def slice_with_step(start, stop, step):
    """
    Slice with step is not supported.
    """
    return slice(start, stop, step)

# Enter the matrix
matrix = np.array([[1,2,3],[4,5,6],[7,8,9]])

# Calling the function
print((matrix[slice_with_step(0, 2, 1)]))

#Example Output
# [[1 2 3]
#  [4 5 6]]

#Remember to inspect code for bugs.