Answer by Wiktor Stribiżew for How to remove all text between the outer parentheses in a string?

NOTE: \(.*\) matches the first ( from the left, then matches any 0+ characters (other than a newline if a DOTALL modifier is not enabled) up to the last), and does not account for properly nested parentheses.

To remove nested parentheses correctly with a regular expression in Python, you may use a simple \([^()]*\) (matching a (, then 0+ chars other than ( and ) and then a )) in a while block using re.subn:

def remove_text_between_parens(text):    n = 1  # run at least once    while n:        text, n = re.subn(r'\([^()]*\)', '', text)  # remove non-nested/flat balanced parts    return text

Bascially: remove the (...) with no ( and ) inside until no match is found. Usage:

print(remove_text_between_parens('stuff (inside (nested) brackets) (and (some(are)) here) here'))# => stuff   here

A non-regex way is also possible:

def removeNestedParentheses(s):    ret = ''    skip = 0    for i in s:        if i == '(':            skip += 1        elif i == ')'and skip > 0:            skip -= 1        elif skip == 0:            ret += i    return retx = removeNestedParentheses('stuff (inside (nested) brackets) (and (some(are)) here) here')print(x)              # => 'stuff   here'

See another Python demo