logger: new _setup() method to setup the logger when lock is already acquired

This commit only moves code from setup() to _setup()

neo/lib/logger.py

@@ -135,8 +135,7 @@ class NEOLogger(Logger):
                 while max_size < self._record_size:
                     self._record_size -= RECORD_SIZE + len(q.popleft().msg)
 
-    def setup(self, filename=None, reset=False):
-        with self:
+    def _setup(self, filename=None, reset=False):
         from . import protocol as p
         global uuid_str
         uuid_str = p.uuid_str
@@ -188,6 +187,10 @@ class NEOLogger(Logger):
             else:
                 with self._db:
                     q("INSERT INTO protocol VALUES (?,?)", (time(), p))
+
+    def setup(self, filename=None, reset=False):
+        with self:
+            self._setup(filename, reset)
     __del__ = setup
 
     def isEnabledFor(self, level):