try pytest

Author: Tieqiong

Diff for: src/diffpy/pdfgui/tests/conftest.py

@@ -1,12 +1,14 @@
 import json
+import subprocess
 from pathlib import Path
 
 import pytest
-import subprocess
+
 
 def pytest_collection_modifyitems(session, config, items):
     subprocess.run(["python", "-m", "diffpy.pdfgui.tests.rundeps"], check=True)
 
+
 @pytest.fixture
 def user_filesystem(tmp_path):
     base_dir = Path(tmp_path)