Check explicit for bool in filter interrupt check

chainsyncer/session.py

@@ -1,9 +1,12 @@
 # standard imports
 import uuid
+import logging
 
 # local imports
 from chainsyncer.error import FilterDone
 
+logg = logging.getLogger(__name__)
+
 
 class SyncSession:
 
@@ -29,6 +32,7 @@ class SyncSession:
     def filter(self, conn, block, tx):
         self.session_store.connect()
         for fltr in self.filters:
+            logg.debug('executing filter {}'.format(fltr))
             self.item.advance()
             interrupt = fltr.filter(conn, block, tx)
             if not self.item.release(interrupt=interrupt):

chainsyncer/store/base.py

@@ -121,7 +121,7 @@ class SyncItem:
     def release(self, interrupt=False):
         if self.skip_filter:
             return False
-        if interrupt:
+        if interrupt == True:
             self.filter_state.unset(self.state_key, self.filter_state.from_name('LOCK'))
             self.filter_state.set(self.state_key, self.filter_state.from_name('INTERRUPT'))
             self.filter_state.set(self.state_key, self.filter_state.from_name('DONE'))