apply ruff fixes

gui/wxpython/mapwin/buffered.py

@@ -1127,7 +1127,7 @@ def DragMap(self, moveto):
 
     def DragItem(self, id, coords):
         """Drag an overlay decoration item"""
-        if id == 99 or id == "" or id is None:
+        if id in (99, "") or id is None:
             return
         Debug.msg(5, "BufferedWindow.DragItem(): id=%d" % id)
         x, y = self.lastpos

gui/wxpython/wxplot/histogram.py

@@ -154,7 +154,7 @@ def SetupHistogram(self):
         # set xlabel based on first raster map in list to be histogrammed
         #
         units = self.raster[self.rasterList[0]]["units"]
-        if units != "" and units != "(none)" and units is not None:
+        if units not in ("", "(none)") and units is not None:
             self.xlabel = _("Raster cell values %s") % units
         else:
             self.xlabel = _("Raster cell values")

gui/wxpython/wxplot/profile.py

@@ -312,12 +312,7 @@ def CreateDatalist(self, raster, coords):
         for line in ret.splitlines():
             dist, elev = line.strip().split(" ")
             if (
-                dist is None
-                or dist == ""
-                or dist == "nan"
-                or elev is None
-                or elev == ""
-                or elev == "nan"
+                dist is None or dist in ("", "nan") or elev is None or elev in ("", "nan")
             ):
                 continue
             dist = float(dist)