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Deny eval() direct access to builtins (GH-20713)

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Raymond Hettinger 2020-06-07 23:51:40 -07:00 committed by GitHub
parent 7633371dac
commit 3ff51d425e
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1 changed files with 2 additions and 1 deletions
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3
Lib/collections/__init__.py
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@ -407,7 +407,8 @@ def namedtuple(typename, field_names, *, rename=False, defaults=None, module=Non
# Create all the named tuple methods to be added to the class namespace
s = f'lambda _cls, {arg_list}: _tuple_new(_cls, ({arg_list}))'
namespace = {'_tuple_new': tuple_new, '__name__': f'namedtuple_{typename}'}
namespace = {'_tuple_new': tuple_new, '__builtins__': None,
'__name__': f'namedtuple_{typename}'}
__new__ = eval(s, namespace)
__new__.__doc__ = f'Create new instance of {typename}({arg_list})'
if defaults is not None: