Hello,

There is a data in list of list like this...

nested_data = [ [ ' [WhiteElo "2627"]', '[BlanckElo "2780"] ' ] ]

My solution used regular expression

for game_data in nested data:

for row in game_data:

row_split = re.sub(r' [" \ [ \ ] ] ', ' ', row).split()

I knot that the re.sbu part is used to split the words WhiteElo and 2627, and BlackElo and 2780.

I just don't understand the regular expression part r' ["\[\]]'.

Can someone please explain that regular expression part?