from __future__ import annotations (#2464)

* from __future__ import annotations

* fixup! from __future__ import annotations

* fixup! from __future__ import annotations

* fixup! Format Python code with psf/black push

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
This commit is contained in:
Christian Clauss
2020-09-23 13:30:13 +02:00
committed by GitHub
parent 6e6a49d19f
commit 9200a2e543
72 changed files with 275 additions and 250 deletions

View File

@ -3,8 +3,9 @@
"""
This is pure Python implementation of tree traversal algorithms
"""
from __future__ import annotations
import queue
from typing import List
class TreeNode: