I was playing with lambdas and list compregensions and came across this unexpected behaviour:
>>> adds = [lambda y: (y + n) for n in range(10)] >>> adds[0](0) 9 >>> for n in range(5): print adds[n](42) ... 42 43 44 45 46 >>> adds[0](0) 4 Can anyone explain the different answers I'm getting? FWIW the behaviour I expected was what seems to happen inside the for loop... It seems to somehow be related to the last value in the range(), am I somehow picking that up as y? If so why? Or is that just a coincidence? And why did it work inside the for loop? Puzzled, Alan G. Author of the Learn to Program website http://www.freenetpages.co.uk/hp/alan.gauld -- http://mail.python.org/mailman/listinfo/python-list
