On 03/08/2013 21:12, kevin4f...@gmail.com wrote:
Basically, I'm trying to find out how to remove matching items from a list. But there doesn't seem to be any information on how to go about doing this specific function. For example, what I want is: let's say there is a list: pHands[0] = ['ad', 'ac', 'as', 'ah', '7d', '8s', '9d', 'td', 'js', 'jd'] So up there, my list, which is named pHands[0] has ten items in it. I'm trying to make a function where a search is initiated into the list and any matching items with a first matching number/letter reaching four are removed So in the end, ad, ac, as, ah (the four a's) will all be deleted/removed from the list. I need the list to automatically detect if there are four matching first letter/numbers in the items in the list. The remaining list will be: pHands[0] = ['7d', '8s', '9d', 'td', 'js', 'jd']
>>> hands = ['ad', 'ac', 'as', 'ah', '7d', '8s', '9d', 'td', 'js', 'jd'] >>> from collections import Counter >>> counts = Counter(hand[0] for hand in hands) >>> counts Counter({'a': 4, 'j': 2, 't': 1, '7': 1, '9': 1, '8': 1}) >>> counts.most_common() [('a', 4), ('j', 2), ('t', 1), ('7', 1), ('9', 1), ('8', 1)] So there are 4 aces. >>> hands = [hand for hand in hands if hand[0] != 'a'] >>> hands ['7d', '8s', '9d', 'td', 'js', 'jd'] -- http://mail.python.org/mailman/listinfo/python-list