1 | initial version |

It is likely a duplicate of this question, you can change the bi-dimensional numpy array `X`

into a list of lists as follows:

```
sage: Y = [list(x) for x in X]
sage: Y
[[1, 2], [3, 4], [1, 2], [4, 1]]
```

2 | No.2 Revision |

It is ~~likely ~~somehow a duplicate of this question, you can change the bi-dimensional numpy array `X`

into a list of lists as follows:

```
sage: Y = [list(x) for x in X]
sage: Y
[[1, 2], [3, 4], [1, 2], [4, 1]]
```

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