35 lines
879 B
Python
35 lines
879 B
Python
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#!/usr/bin/env python
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# pylint: disable=W0212
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def limit(self, start_or_stop=None, stop=None, step=None):
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"""
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Create a new table with fewer rows.
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See also: Python's builtin :func:`slice`.
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:param start_or_stop:
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If the only argument, then how many rows to include, otherwise,
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the index of the first row to include.
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:param stop:
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The index of the last row to include.
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:param step:
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The size of the jump between rows to include. (`step=2` will return
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every other row.)
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:returns:
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A new :class:`.Table`.
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"""
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if stop or step:
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s = slice(start_or_stop, stop, step)
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else:
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s = slice(start_or_stop)
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rows = self._rows[s]
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if self._row_names is not None:
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row_names = self._row_names[s]
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else:
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row_names = None
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return self._fork(rows, row_names=row_names)
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