From 66fa70e7efff36ac1b4b52141e5471c4fb0ae267 Mon Sep 17 00:00:00 2001
From: Katherine Mantel <kmantel@princeton.edu>
Date: Tue, 25 Jun 2024 21:26:41 +0000
Subject: [PATCH] utilities: output_graph_image: use os.path.extsep instead of
 .

---
 src/graph_scheduler/utilities.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/graph_scheduler/utilities.py b/src/graph_scheduler/utilities.py
index 33496dc..47b6d7d 100644
--- a/src/graph_scheduler/utilities.py
+++ b/src/graph_scheduler/utilities.py
@@ -2,6 +2,7 @@
 import functools
 import inspect
 import logging
+import os
 import weakref
 from typing import Callable, Dict, Hashable, List, Set, Union
 
@@ -230,7 +231,7 @@ def output_graph_image(
         - Python pydot: pip install pydot
     """
     if filename is None:
-        filename = f'graph-scheduler-figure-{id(graph)}.{format}'
+        filename = f'graph-scheduler-figure-{id(graph)}{os.path.extsep}{format}'
 
     if not isinstance(graph, nx.Graph):
         graph = dependency_dict_to_networkx_digraph(graph)