If string does not contain any of list of strings in python
<p>I have a list of strings, from which I want to locate every line that has 'http://' in it, but does not have 'lulz', 'lmfao', '.png', or any other items in a list of strings in it. How would I go about this?</p>

<p>My instincts tell me to use regular expressions, but I have a moral objection to witchcraft.</p>
