TOOLS/stats-conv: typing fixes

To make mypy happy. PyQtGraph doesn't define types, so ignore those.
PyQt6 has types, but we use only one function from it, so to avoid
installing it, ignore it too.

TOOLS/stats-conv.py

@@ -1,9 +1,10 @@
 #!/usr/bin/env python3
 import re
 import sys
+from typing import Any
 
-import pyqtgraph as pg
-from PyQt6 import QtWidgets
+import pyqtgraph as pg  # type: ignore
+from PyQt6 import QtWidgets  # type: ignore
 
 filename = sys.argv[1]
 
@@ -37,12 +38,18 @@ Currently, the following event types are supported:
 
 """
 
+class Event:
+    name: str
+    vals: list[tuple[float, float]] = []
+    type: str
+    marker = ""
+
 class G:
-    events = {}
+    events: dict[str, Event] = {}
     start = 0.0
     markers = ["o", "s", "t", "d"]
-    curveno = {}
-    sevents = []
+    curveno: dict[Any, int] = {}
+    sevents: list[Event] = []
 
 def find_marker():
     if len(G.markers) == 0:
@@ -51,12 +58,6 @@ def find_marker():
     G.markers = G.markers[1:]
     return m
 
-class Event:
-    name = None
-    vals = []
-    type = None
-    marker = ""
-
 def get_event(event, evtype):
     if event not in G.events:
         e = Event()
@@ -91,8 +92,8 @@ with open(filename) as file:
         line = line.split("#")[0].strip()
         if not line:
             continue
-        ts, event = line.split(" ", 1)
-        ts = int(ts) / SCALE
+        ts_str, event = line.split(" ", 1)
+        ts = int(ts_str) / SCALE
         if G.start is None:
             G.start = ts
         ts -= G.start
@@ -108,18 +109,16 @@ with open(filename) as file:
                 e.vals.append((ts, 0))
             case ["value", rest]:
                 val, name = rest.split(" ", 1)
-                val = float(val)
                 e = get_event(name, "value")
-                e.vals.append((ts, val))
+                e.vals.append((ts, float(val)))
             case ["event-timed", rest]:
                 val, name = rest.split(" ", 1)
-                val = int(val) / SCALE - G.start
                 e = get_event(name, "event-signal")
-                e.vals.append((val, 1))
+                e.vals.append((int(val) / SCALE - G.start, 1))
             case ["range-timed", rest]:
-                ts1, ts2, name = rest.split(" ", 2)
-                ts1 = int(ts1) / SCALE - G.start
-                ts2 = int(ts2) / SCALE - G.start
+                ts1_str, ts2_str, name = rest.split(" ", 2)
+                ts1 = int(ts1_str) / SCALE - G.start
+                ts2 = int(ts2_str) / SCALE - G.start
                 e = get_event(name, "event")
                 e.vals.append((ts1, 0))
                 e.vals.append((ts1, 1))
@@ -127,10 +126,8 @@ with open(filename) as file:
                 e.vals.append((ts2, 0))
             case ["value-timed", rest]:
                 tsval, val, name = rest.split(" ", 2)
-                tsval = int(tsval) / SCALE - G.start
-                val = float(val)
                 e = get_event(name, "value")
-                e.vals.append((tsval, val))
+                e.vals.append((int(tsval) / SCALE - G.start, float(val)))
             case ["signal", name]:
                 e = get_event(name, "event-signal")
                 e.vals.append((ts, 1))
@@ -163,7 +160,7 @@ ax[0] = win.addPlot()
 if hasval:
     win.nextRow()
     ax[1] = win.addPlot()
-    ax[1].setXLink(ax[0])
+    ax[1].setXLink(ax[0])  # type: ignore
 
 for cur in ax:
     if cur is not None:
@@ -181,6 +178,6 @@ for e in G.sevents:
     else:
         args["pen"] = pg.mkPen(color, width=0)
     G.curveno[cur] += 1
-    cur.plot(*zip(*e.vals), **args)
+    cur.plot(*zip(*e.vals), **args)  # type: ignore
 
 app.exec()