Python 2.2 made its debut at the end of 2001, and its first bug-fix version 2.2.1 was recently released from the core developers at PythonLabs. The 2.2.x family is full of new features and ...

Certain principles hold for the use of iterators: In general, you should be able to have multiple traversals in progress at the same time; that is, an iterator should allow for the concept of nested ...