list115utils.flatten_deep

All Samples(3) | Call(2) | Derive(0) | Import(1)

        def flatten_deep(x):
    result = []
    for el in x:
        if hasattr(el, "__iter__") and not isinstance(el, basestring):
            result.extend(flatten_deep(el))
        else:
            result.append(el)
    return result

src/l/i/list115utils-1.0.1/list115utils/test/test_listutils.py list115utils(Download)

        self.assertListEqual(flatten([]), [])
 
from list115utils import flatten_deep
class TestFlattenDeep(TestListUtils):
    def test_flatten_deep_works_on_mixed_deep_lists(self):
        l = ['a', ['1', ['apple', 'orange'], [], '3'], [4,5,6], [], 'b']
        self.assertListEqual(flatten_deep(l), ['a', '1', 'apple', 'orange', '3', 4, 5, 6, 'b'])
 
    def test_flatten_deep_works_on_empty_list(self):
        self.assertListEqual(flatten_deep([]), [])