If string does not contain any of list of strings in python

Question

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 str

Answer 1

Here is an option that is fairly extensible if the list of strings to exclude is large:

exclude = ['lulz', 'lmfao', '.png']
filter_func = lambda s: 'http://' in s and not any(x in s for x in exclude)

matching_lines = filter(filter_func, string_list)

List comprehension alternative:

matching_lines = [line for line in string_list if filter_func(line)]