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Issue #24879: Teach pydoc to display named tuple fields in the order they were defined.

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This commit is contained in:
Raymond Hettinger 2015-08-18 22:25:16 -07:00
parent 15b87bfedc
commit 95801bbe4e
3 changed files with 35 additions and 4 deletions
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16
Lib/test/test_pydoc.py
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@ -811,6 +811,22 @@ class TestDescriptions(unittest.TestCase):
self.assertEqual(self._get_summary_line(t.wrap),
"wrap(text) method of textwrap.TextWrapper instance")
def test_field_order_for_named_tuples(self):
Person = namedtuple('Person', ['nickname', 'firstname', 'agegroup'])
s = pydoc.render_doc(Person)
self.assertLess(s.index('nickname'), s.index('firstname'))
self.assertLess(s.index('firstname'), s.index('agegroup'))
class NonIterableFields:
_fields = None
class NonHashableFields:
_fields = [[]]
# Make sure these doesn't fail
pydoc.render_doc(NonIterableFields)
pydoc.render_doc(NonHashableFields)
@requires_docstrings
def test_bound_builtin_method(self):
s = StringIO()