improve more errors during startup

errors from a module a combined with a header and intended
details

Change-Id: I4be7bc2f8455fb0e3c9346f3bb23ac88e7589604

secop/server.py

@@ -245,12 +245,8 @@ class Server:
                     continue
                 cls = get_class(classname)
             except Exception as e:
-                if pymodule is None:
-                    if str(e) == 'no such class':
-                        errors.append('%s not found' % classname)
-                    else:
-                        raise
-                        errors.append(repr(e))
+                if str(e) == 'no such class':
+                    errors.append('%s not found' % classname)
                 else:
                     failed.add(pymodule)
                     failure_traceback = traceback.format_exc()
@@ -262,9 +258,13 @@ class Server:
                     if opts:
                         errors.append(self.unknown_options(cls, opts))
                     self.modules[modname] = modobj
-                except Exception as e:
+                except ConfigError as e:
+                    errors.append('error creating module %s:' % modname)
+                    for errtxt in e.args[0]:
+                        errors.append('  ' + errtxt)
+                except Exception:
                     failure_traceback = traceback.format_exc()
-                    errors.append('error creating %s: %r' % (modname, e))
+                    errors.append('error creating %s' % modname)
 
         poll_table = dict()
         # all objs created, now start them up and interconnect