Merge pull request #335 from joerick/fix-302

Fix 302 divide by zero error

Author: joerick

pyinstrument/renderers/console.py

@@ -243,6 +243,8 @@ def frame_description(self, frame: Frame, *, override_time: float | None = None)
         return f"{value_str} {function_str}  {code_position_str}"
 
     def frame_proportion_of_total_time(self, time: float) -> float:
+        if self.root_frame.time == 0:
+            return 1
         return time / self.root_frame.time
 
     def _ansi_color_for_time(self, time: float) -> str: