fix: fix code to make tests of session and otks databases pass on windows The existing code had a few issues: sessions_dbm.py: detect dumbdbm when used on windows python and properly delete session/otks databases so clear() works. make sure the Session/Otks.cache_db_type() is called even when the database is newly created. test/session_common.py: close session and otks database in teardown before deleting database directory to prevent errors from deleting open files on windows. test/test_sqlite.py: close the session and otks databases opened by SessionTest.setUp(self) so the salite session/otks database are closed before the new anydbm sessions databases are opened for testing the sqlite main db and anydbm as session/otks db. Again this causes deletion of database test directory to fail on windows as you can't delete open files.

--- a/roundup/backends/sessions_dbm.py	Thu Apr 18 15:21:15 2024 -0400
+++ b/roundup/backends/sessions_dbm.py	Thu Apr 18 17:39:56 2024 -0400
@@ -42,6 +42,9 @@
             os.remove(path)
         elif os.path.exists(path+'.db'):    # dbm appends .db
             os.remove(path+'.db')
+        elif os.path.exists(path+".dir"):  # dumb dbm
+            os.remove(path+".dir")
+            os.remove(path+".dat")
 
     def cache_db_type(self, path):
         ''' determine which DB wrote the class file, and cache it as an
@@ -142,7 +145,9 @@
 
         # new database? let anydbm pick the best dbm
         if not db_type:
-            return anydbm.open(path, 'c')
+            db = anydbm.open(path, 'c')
+            self.cache_db_type(path)
+            return db
 
         # open the database with the correct module
         dbm = __import__(db_type)