def test_modify_uns_in_copy():
    # https://github.com/theislab/anndata/issues/571
    adata = ad.AnnData(np.ones((5, 5)), uns={"parent": {"key": "value"}})
    adata_copy = adata[:3].copy()
    adata_copy.uns["parent"]["key"] = "new_value"
    assert adata.uns["parent"]["key"] != adata_copy.uns["parent"]["key"]
def open_pager(self):
        "Open the selected item with the system's pager"
        data = self.get_selected_item()
        if data['type'] == 'Submission':
            text = '\n\n'.join((data['permalink'], data['text']))
            self.term.open_pager(text)
        elif data['type'] == 'Comment':
            text = '\n\n'.join((data['permalink'], data['body']))
            self.term.open_pager(text)
        else:
            self.term.flash()