how to delete both parenthases in python code example

Example 1: how to remove text in brackets of python

>>> import re 
>>> x = "This is a sentence. (once a day) [twice a day]"
>>> re.sub("[\(\[].*?[\)\]]", "", x)
'This is a sentence.  '

Example 2: remove all parentheses from string python

>>> table = str.maketrans({"(":None, ")":None})