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-rw-r--r--Lib/collections/__init__.py13
1 files changed, 2 insertions, 11 deletions
diff --git a/Lib/collections/__init__.py b/Lib/collections/__init__.py
index 0b74c3f..c31d7b7 100644
--- a/Lib/collections/__init__.py
+++ b/Lib/collections/__init__.py
@@ -316,8 +316,6 @@ try:
except ImportError:
_tuplegetter = lambda index, doc: property(_itemgetter(index), doc=doc)
-_nt_itemgetters = {}
-
def namedtuple(typename, field_names, *, rename=False, defaults=None, module=None):
"""Returns a new subclass of tuple with named fields.
@@ -456,16 +454,9 @@ def namedtuple(typename, field_names, *, rename=False, defaults=None, module=Non
'_asdict': _asdict,
'__getnewargs__': __getnewargs__,
}
- cache = _nt_itemgetters
for index, name in enumerate(field_names):
- try:
- doc = cache[index]
- except KeyError:
- doc = f'Alias for field number {index}'
- cache[index] = doc
-
- tuplegetter_object = _tuplegetter(index, doc)
- class_namespace[name] = tuplegetter_object
+ doc = _sys.intern(f'Alias for field number {index}')
+ class_namespace[name] = _tuplegetter(index, doc)
result = type(typename, (tuple,), class_namespace)