On 2015-08-09 19:24, Chris Angelico wrote: > That's exactly right. The only way for the interpreter to handle > 'in' on an iterator is something like this: > > def contains(iter, obj): > for val in iter: > if val == obj: return True > return False
Which can nicely be written as any(i == obj for obj in iter) The addition of any/all initially struck me as a "why?! this is so easy to write in-line" moment, only to find myself using them all() the time. :-) The code-intention becomes so much clearer. Even back-ported them to 2.4 code that I maintain. -tkc -- https://mail.python.org/mailman/listinfo/python-list
