if filter(lambda x: fld.startswith(x),
['title', 'left_column', 'right_column']):
o = open(os.path.join(dst3, fld+".txt"),'w')
if filter(lambda x: fld.startswith(x),
['title', 'left_column', 'right_column']):
o = open(os.path.join(dst3, fld+".txt"),'w')