Fix parameter missing in Python 3.7

novelwriter/core/document.py

@@ -201,8 +201,12 @@ class NWDoc:
         docTemp = docPath.with_suffix(".tmp")
 
         try:
-            docPath.unlink(missing_ok=True)
-            docTemp.unlink(missing_ok=True)
+            # ToDo: When Python 3.7 is dropped, these can be changed to
+            # path.unlink(missing_ok=True)
+            if docPath.exists():
+                docPath.unlink()
+            if docTemp.exists():
+                docTemp.unlink()
         except Exception as exc:
             self._docError = formatException(exc)
             return False

tests/test_core/test_core_project.py

@@ -582,7 +582,8 @@ def testCoreProject_Methods(monkeypatch, mockGUI, fncDir, mockRnd):
     # Write entry
     statsFile = theProject.storage.getMetaFile(nwFiles.SESS_STATS)
     assert isinstance(statsFile, Path)
-    statsFile.unlink(missing_ok=True)
+    if statsFile.exists():
+        statsFile.unlink()
 
     theProject._projOpened = 1600002000
     theProject.data._initCounts = [50, 50]