message: Update evaluate-the-bracket-pairs-of-a-string.py
diff: @@ -18,7 +18,7 @@ class Solution(object):
  has_pair = False
  result.append(lookup.get("".join(curr), '?'))
  curr = []
  - elif is_pair:
  + elif has_pair:
  curr.append(c)
  else:
  result.append(c)
  