Update black_isort_linter.py

examples/pytorch/black_isort_linter.py

@@ -115,7 +115,7 @@ def check_file(
         with open(filename, "rb") as f:
             # Resolve the file path to get around errors with Python 3.8/3.9
             # https://github.com/psf/black/issues/4209
-            filename = os.path.realpath(filename)
+            filename = str(pathlib.Path(filename).resolve())
             proc = run_command(
                 [sys.executable, "-mblack", "--stdin-filename", filename, "-"],
                 stdin=f,