list comprehension question

[Neil Schemenauer]

Tim Peters wrote:
> No.  len([f(x) for x in y]) == len(y) whenever no exception occurs,
> regardless of the form of f() or type of y.

Looks like the bot needs a bugfix:

    >>> def f():
    ...   for x in range(10):
    ...     yield x
    ... 
    >>> len(f)
    Traceback (most recent call last):
      File "<stdin>", line 1, in ?
    TypeError: len() of unsized object
    >>> len([int(x) for x in f()])
    10

Hmm, should len() should work on pure iterators?

  Neil