Issue #10160: Speed up operator.attrgetter. Patch by Christos Georgiou.

1 files changed, 2 insertions, 0 deletions

diff --git a/Doc/library/operator.rst b/Doc/library/operator.rst
index 2d03061..efefaa6 100644
--- a/Doc/library/operator.rst
+++ b/Doc/library/operator.rst
@@ -336,6 +336,8 @@ expect a function argument.
    b.date)``.  Equivalent to::
 
       def attrgetter(*items):
+          if any(not isinstance(item, str) for item in items):
+              raise TypeError('attribute name must be a string')
           if len(items) == 1:
               attr = items[0]
               def g(obj):