"""Credits:
Raymond Hettinger suggested using itertools
Chris Perkins suggested using itertools.imap
Bengt Richter suggested the name any_true
many others gave useful input on c.l.py
I did cut and paste ;)"""
import os,itertools
def anyTrue(pred,seq):
"Returns True if a True predicate is found, False
otherwise. Quits as soon as the first True is found"
return True in itertools.imap(pred,seq)
# example: print image files in the current directory
the=anyTrue # for readability
for filename in os.listdir('.'):
if the(filename.endswith,('.jpg','.jpeg','.gif')):
print filename
