Merge pull request #1337 from swt2c/time_clock_removed

Replace time.clock (removed in Python 3.8) with time.process_time

(cherry picked from commit 59e70e7c76)

wx/lib/floatcanvas/FloatCanvas.py

@@ -48,7 +48,10 @@ import sys
 mac = sys.platform.startswith("darwin")
 
 import numpy as N
-from time import clock
+try:
+    from time import process_time as clock
+except ImportError:
+    from time import clock
 import wx
 import six