don't fail if progress handler unavailable or tags table existing

anki/deck.py

@@ -128,8 +128,11 @@ class Deck(object):
         self.reviewedAheadCards = []
         self.extraNewCards = 0
         self.reviewEarly = False
+        try:
             self.engine.raw_connection().set_progress_handler(
                 self.progressHandler, 100000)
+        except:
+            print "please install pysqlite 2.4 for better progress dialogs"
         self.progressHandlerEnabled = False
 
     def modifiedSinceSave(self):

anki/tags.py

@@ -19,6 +19,7 @@ from anki.db import *
 ##########################################################################
 
 def initTagTables(s):
+    try:
         s.statement("""
     create table tags (
     id integer not null,
@@ -32,6 +33,8 @@ cardId integer not null,
     tagId integer not null,
     src integer not null,
     primary key(id))""")
+    except:
+        pass
 
 def tagId(s, tag):
     "Return ID for tag, creating if necessary."