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Pyupgrade to Python 3.9 (#4718)

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* Pyupgrade to Python 3.9

* updating DIRECTORY.md

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
This commit is contained in:
Christian Clauss
2021-09-07 13:37:03 +02:00
committed by GitHub
parent 5d5831bdd0
commit cecf43d648
142 changed files with 523 additions and 530 deletions
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7
graphs/breadth_first_search.py
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@ -1,13 +1,12 @@
#!/usr/bin/python
""" Author: OMKAR PATHAK """
from typing import Dict, List, Set
from __future__ import annotations
class Graph:
def __init__(self) -> None:
self.vertices: Dict[int, List[int]] = {}
self.vertices: dict[int, list[int]] = {}
def print_graph(self) -> None:
"""
@ -35,7 +34,7 @@ class Graph:
else:
self.vertices[from_vertex] = [to_vertex]
def bfs(self, start_vertex: int) -> Set[int]:
def bfs(self, start_vertex: int) -> set[int]:
"""
>>> g = Graph()
>>> g.add_edge(0, 1)