The Writing Stats tool should not pop an error message if there is no satistics log

nw/gui/writingstats.py

@@ -403,8 +403,12 @@ class GuiWritingStats(QDialog):
         ttNotes = 0
         ttTime  = 0
 
+        logFile = os.path.join(self.theProject.projMeta, nwFiles.SESS_STATS)
+        if not os.path.isfile(logFile):
+            logger.info("This project has no writing stats logfile")
+            return False
+
         try:
-            logFile = os.path.join(self.theProject.projMeta, nwFiles.SESS_STATS)
             with open(logFile, mode="r", encoding="utf8") as inFile:
                 for inLine in inFile:
                     if inLine.startswith("#"):

tests/test_gui_writingstats.py

@@ -203,6 +203,7 @@ def testGuiWritingStats_Dialog(qtbot, monkeypatch, nwGUI, fncDir, fncProj):
     # IOError
     # =======
     monkeypatch.setattr("builtins.open", causeOSError)
+    assert not sessLog._loadLogFile()
     assert not sessLog._saveData(sessLog.FMT_CSV)
 
     # qtbot.stopForInteraction()