> Date: 2012年9月20日 15:14:36 -0400 > From: Aaron Leanhardt <aaron at leanhardtingenuities.com> > Subject: [docs] map objects are not lists >> 5.1.3. List Comprehensions<http://docs.python.org/dev/tutorial/datastructures.html#list-comprehensions> >> ... >> This is also equivalent to squares = map(lambda x: x**2, range(10)), but > it?s more concise and readable. >>> I think that the last sentence above should read: >> squares = list(map(lambda x: x**2, range(10))) Hi Aaron, thanks for the report. I created an issue in the tracker for this here: http://bugs.python.org/issue16073 --Chris