Store all characters between parentheses in string

Question

I have a string

statement = 'P ∧ (Q ∨ R) ↔ (P ∧ Q) ∨ (P ∧ R)'

I want to store each string that is within parentheses, like this:

['Q ∨ R', 'P ∧ Q', 'P ∧ R']

How can this be done?

Answer 1

>>> import re
>>> [s[1:-1] for s in re.findall(r'\(.*?\)', 'P ∧ (Q ∨ R) ↔ (P ∧ Q) ∨ (P ∧ R)')]
['Q ∨ R', 'P ∨ Q', 'P ∧ R']

Answer 2

It's a good use-case for regex:

>>> import re
>>> re.findall(r'\((.*?)\)', statement)
['Q ∨ R', 'P ∧ Q', 'P ∧ R']

The ? character in the pattern is a non-greedy modifier suffix.