I cannot run my code

Why do I keep getting this error?

sh: line 1: Use: command not found
exit status 127

Here is the code

 import numpy as np

def calculate(list):
  if list.len != 9:
    raise ValueError("List must contain nine numbers")
    matrix = np.array(list).reshape(3,3)

  calculations = {
    'mean': [list(matrix.mean(axis=0)), list(matrix.mean(axis=1)), matrix.mean],
    'variance': [list(matrix.vars(axis=0)), list(matrix.vars(axis=1)), matrix.vars],
    'standard deviation': [list(matrix.std(axis=0)), list(matrix.std(axis=1)), matrix.std],
    'max': [list(matrix.max(axis=0)), list(matrix.max(axis=1)), matrix.max],
    'min': [list(matrix.min(axis=0)), list(matrix.min(axis=1)), matrix.min],
    'sum': [list(matrix.sum(axis=0)), list(matrix.sum(axis=1)), matrix.sum]

  return calculations

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