[Python-bugs-list] [ python-Bugs-665835 ] filter() treatment of str and tuple inconsistent

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Bugs item #665835, was opened at 2003-01-10 17:36
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=105470&aid=665835&group_id=5470

Category: Python Interpreter Core
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Walter Dörwald (doerwalter)
Assigned to: Nobody/Anonymous (nobody)
Summary: filter() treatment of str and tuple inconsistent

Initial Comment:
class tuple2(tuple):
·  def __getitem__(self, index):
·  ·  return 2*tuple.__getitem__(self, index)

class str2(str):
·  def __getitem__(self, index):
·  ·  return chr(ord(str.__getitem__(self, index))+1)

print filter(lambda x: x>1, tuple2((1, 2)))
print filter(lambda x: x>"a", str2("ab"))

this prints:
(2,)
bc

i.e. the overwritten __getitem__ is ignored in the
first case, but honored in the second.


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https://sourceforge.net/tracker/?func=detail&atid=105470&aid=665835&group_id=5470