errors in balanced_parentheses.py

[ashwek]

Python/data_structures/stacks/balanced_parentheses.py

Lines 13 to 17 in 6a95bf9

	stack.push(parenthesis)
	elif parenthesis == ')':
	stack.pop()
	return not stack.is_empty()

Line 16 returns wrong result due to not

Line 15 can cause error for inputs like )). before calling pop it should be checked if stack is empty.

Python/data_structures/stacks/balanced_parentheses.py

Line 3 in 6a95bf9

from .Stack import Stack

there is no module named .Stack. it should be
from stack import Stack

[mikaelsouza]

Oh, I just noticed that you already fixed this issue which makes what I did redundant haha.

I hope the new example can be useful though.