update. /JL

my_pandas.py

@@ -0,0 +1,15 @@
+import pandas as pd
+import io
+
+print("Pandas version: ", pd.__version__)
+
+def xml2df(xml_file):
+    with open(xml_file, "r") as F:
+        xml_data = F.read()
+    return pd.read_xml(io.StringIO(xml_data), parser="etree", xpath=".//component-class//feature-value")
+
+if __name__ == "__main__":
+    df = xml2df("test_data.tcx")
+    df.assign(counter = lambda df: df.groupby('.//component/name').cumcount())
+
+    print(df)