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| author | Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> | 2020-06-08 20:25:48 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-06-08 20:25:48 (GMT) |
| commit | 299d3d1c52ffc7f9e200de577fe5d1d5310d7c27 (patch) | |
| tree | 8100310435118818a88d6b9e11a0937fc7f4aaf8 | |
| parent | b155381314c632e7dd452fbade3903e58657cfc7 (diff) | |
| download | cpython-299d3d1c52ffc7f9e200de577fe5d1d5310d7c27.zip cpython-299d3d1c52ffc7f9e200de577fe5d1d5310d7c27.tar.gz cpython-299d3d1c52ffc7f9e200de577fe5d1d5310d7c27.tar.bz2 | |
Minor improvement to the namedtuple implementation (GH-20741) (GH-20742)
| -rw-r--r-- | Lib/collections/__init__.py | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/Lib/collections/__init__.py b/Lib/collections/__init__.py index d11d120..61199ab 100644 --- a/Lib/collections/__init__.py +++ b/Lib/collections/__init__.py @@ -399,7 +399,9 @@ def namedtuple(typename, field_names, *, rename=False, defaults=None, module=Non # Variables used in the methods and docstrings field_names = tuple(map(_sys.intern, field_names)) num_fields = len(field_names) - arg_list = repr(field_names).replace("'", "")[1:-1] + arg_list = ', '.join(field_names) + if num_fields == 1: + arg_list += ',' repr_fmt = '(' + ', '.join(f'{name}=%r' for name in field_names) + ')' tuple_new = tuple.__new__ _dict, _tuple, _len, _map, _zip = dict, tuple, len, map, zip @@ -410,6 +412,7 @@ def namedtuple(typename, field_names, *, rename=False, defaults=None, module=Non namespace = {'_tuple_new': tuple_new, '__builtins__': None, '__name__': f'namedtuple_{typename}'} __new__ = eval(s, namespace) + __new__.__name__ = '__new__' __new__.__doc__ = f'Create new instance of {typename}({arg_list})' if defaults is not None: __new__.__defaults__ = defaults |