On 03/12/15 02:15, c.bu...@posteo.jp wrote:
I would like to know how this could be done more elegant/pythonic.I have a big list (over 10.000 items) with strings (each 100 to 300 chars long) and want to filter them. list = ..... for item in list[:]: if 'Banana' in item: list.remove(item) if 'Car' in item: list.remove(item) There are a lot of more conditions of course. This is just example code. It doesn't look nice to me. To much redundance. btw: Is it correct to iterate over a copy (list[:]) of that string list and not the original one?
No idea how 'Pythonic' this would be considered, but you could use a combination of filter() with a regular expression :
# ------------------------------------------------------------------ import re list = ... pattern = re.compile( r'banana|car', re.I ) filtered_list = filter( lambda line: not pattern.search(line), list ) # ------------------------------------------------------------------ HTH -- https://mail.python.org/mailman/listinfo/python-list
