why would this print 'True'?

Neal Becker ndbecker2 at gmail.com
Mon May 11 08:58:43 EDT 2015


Nevermind - I found the answer.  I was trying this in ipython with pylab:

http://stackoverflow.com/questions/7491951/python-builtin-all-with-generators

Neal Becker wrote:

> from itertools import ifilter
> 
> if all (hasattr (b, 'test') for b in ifilter (lambda b: b < 10,
> [1,2,3,4])):
>     print 'True'
> 
> same result using filter instead of ifilter.
> 
> hasattr (b, 'test') where b is 1, 2, 3... should all be False.  So why
> does this print True?
> 
-- 
Those who fail to understand recursion are doomed to repeat it




More information about the Python-list mailing list