A couple of coverage tweaks

.coveragerc

@@ -8,3 +8,4 @@ exclude_lines =
     assert False
     raise NotImplementedError
     if __name__ == .__main__.:
+    def __repr__

beetsplug/bucket.py

@@ -121,9 +121,6 @@ def str2fmt(s):
                        "(?P<toyear>\d*)(?P<after>\D*)")
     m = re.match(regex, s)
 
-    def year_format(year):
-        return '%%0%dd' % len(year)
-
     res = {'fromnchars': len(m.group('fromyear')),
            'tonchars': len(m.group('toyear'))}
     res['fmt'] = "%s%%s%s%s%s" % (m.group('bef'),

test/test_dbcore.py

@@ -431,6 +431,10 @@ class QueryFromStringsTest(unittest.TestCase):
         q = self.qfs(['some_float_field:2..3'])
         self.assertIsInstance(q.subqueries[0], dbcore.query.NumericQuery)
 
+    def test_empty_query_part(self):
+        q = self.qfs([''])
+        self.assertIsInstance(q.subqueries[0], dbcore.query.TrueQuery)
+
 
 class SortFromStringsTest(unittest.TestCase):
     def sfs(self, strings):