Comment #14 on issue 2125 by nicolas.pourcelot: Using Integers as python slices.
http://code.google.com/p/sympy/issues/detail?id=2125

@Aaron:
"There's no point in testing it five times in Python 2.5+, so I would move the for loop into the else block."

Sorry, I don't understand what you mean. How would you refactor this ?

def test_basic_nostr():
    for obj in basic_objs:
        for op in ['+','-','*','/','**']:
            if obj == 2 and op == '*':
                if hasattr(int, '__index__'): # Python 2.5+ (PEP 357)
                    assert obj * '1' == '11'
            else:
                raises(TypeError, "obj %s '1'" % op)

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