Update plugin.py

Author: KRRT7

codeflash/benchmarking/plugin/plugin.py

@@ -251,8 +251,12 @@ def wrapped_func(*args, **kwargs):  # noqa: ANN002, ANN003, ANN202
 
         def _run_benchmark(self, func, *args, **kwargs):  # noqa: ANN001, ANN002, ANN003, ANN202
             """Actual benchmark implementation."""
+            node_path = getattr(self.request.node, "path", None) or getattr(self.request.node, "fspath", None)
+            if node_path is None:
+                raise RuntimeError("Unable to determine test file path from pytest node")
+
             benchmark_module_path = module_name_from_file_path(
-                Path(str(self.request.node.fspath)), Path(codeflash_benchmark_plugin.project_root), traverse_up=True
+                Path(str(node_path)), Path(codeflash_benchmark_plugin.project_root), traverse_up=True
             )
 
             benchmark_function_name = self.request.node.name