On 4/28/2014 2:22 AM, Joshua Landau wrote:
Is there any reference for this strange behaviour on Python 2:>>> set() < dict().viewkeys() Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: can only compare to a set >>> dict().viewkeys() > set() False
The left operand determines the result. The manual specifies that < and > do not have to be consistent. But I suspect that when 3.x dict.keys() was backported to 2.7.0, no one thought to update set, whereas the backported key view code already had the comparison.
-- Terry Jan Reedy -- https://mail.python.org/mailman/listinfo/python-list
