[QPROF] Small Enhancements (#1289)

- Correcting some possible issues.

verticapy/__init__.py

@@ -37,9 +37,9 @@
 __url__: str = "https://github.com/vertica/verticapy/"
 __license__: str = "Apache License, Version 2.0"
 __version__: str = "1.0.5"
-__iteration__: int = 3
-__date__: str = "26092024"
-__last_commit__: str = "8ca3c10cc479cb3da4ff3eb1bbe3a22627f5638a"
+__iteration__: int = 1
+__date__: str = "27092024"
+__last_commit__: str = "7a6490bfc614d3268b34096663758dca407ea889"
 __long_version__: str = f"{__version__}-{__iteration__}—{__date__}-{__last_commit__}"
 __codecov__: float = 0.84
 

verticapy/performance/vertica/qprof.py

@@ -2498,6 +2498,8 @@ def get_qduration(
             For more details, please look at
             :py:class:`~verticapy.performance.vertica.qprof.QueryProfiler`.
         """
+        if isinstance(self.qduration, NoneType):
+            return None
         return float(self.qduration / self._get_interval(unit))
 
     # Step 3: Query execution steps

verticapy/performance/vertica/tree.py

@@ -353,6 +353,8 @@ def _set_style(self, d: dict) -> None:
             d["threshold_metric2"] = None
         if "op_filter" not in d:
             d["op_filter"] = None
+        elif isinstance(d["op_filter"], str):
+            d["op_filter"] = [d["op_filter"]]
         if "tooltip_filter" not in d:
             d["tooltip_filter"] = None
         if "display_path_transition" not in d: