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sorts.py
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sorts.py
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from __future__ import absolute_import, print_function, division
# sort()
########
import petl as etl
table1 = [['foo', 'bar'],
['C', 2],
['A', 9],
['A', 6],
['F', 1],
['D', 10]]
table2 = etl.sort(table1, 'foo')
table2
# sorting by compound key is supported
table3 = etl.sort(table1, key=['foo', 'bar'])
table3
# if no key is specified, the default is a lexical sort
table4 = etl.sort(table1)
table4
# mergesort()
#############
import petl as etl
table1 = [['foo', 'bar'],
['A', 9],
['C', 2],
['D', 10],
['A', 6],
['F', 1]]
table2 = [['foo', 'bar'],
['B', 3],
['D', 10],
['A', 10],
['F', 4]]
table3 = etl.mergesort(table1, table2, key='foo')
table3.lookall()
# issorted()
############
import petl as etl
table1 = [['foo', 'bar', 'baz'],
['a', 1, True],
['b', 3, True],
['b', 2]]
etl.issorted(table1, key='foo')
etl.issorted(table1, key='bar')
etl.issorted(table1, key='foo', strict=True)
etl.issorted(table1, key='foo', reverse=True)