1.1 --- a/allpy/structure.py	Wed Nov 28 18:26:43 2012 +0400
     1.2 +++ b/allpy/structure.py	Fri Dec 21 15:04:53 2012 +0400
     1.3 @@ -198,8 +198,11 @@
     1.4                  central_pdb.append(m)
     1.5              if m is central_stop:
     1.6                  break
     1.7 -        assert len(set(central_pdb) - set(matched_pdb)) <= max_waste_in_pdb
     1.8 -        assert len(matched_pdb) >= min_match
     1.9 +        assert len(set(central_pdb) - set(matched_pdb)) <= max_waste_in_pdb,\
    1.10 +               "too much waste in matched pdb (%i > %i)" %\
    1.11 +               (len(set(central_pdb) - set(matched_pdb)), max_waste_in_pdb)
    1.12 +        assert len(matched_pdb) >= min_match,\
    1.13 +               "too short match (%i < %i)" % (len(matched_pdb), min_match)
    1.14  
    1.15      def pdb_unload(self):
    1.16          """ Delete all pdb-connected links """
    1.17 @@ -238,7 +241,7 @@
    1.18          TODO: conformity_file
    1.19          """
    1.20          match = pdb_id_parse(self.name)
    1.21 -        assert match
    1.22 +        assert match, "Can't parse seq id: %s" % self.name
    1.23          if 'path' in match and read_local:
    1.24              code = 'path'
    1.25              pdb_file = open(match['path'])