do not generate class names with hyphens

Author: nebularazer

sqlacodegen/codegen.py

@@ -337,7 +337,7 @@ def __init__(self, table, association_tables, inflect_engine, detect_joined):
 
     @staticmethod
     def _tablename_to_classname(tablename, inflect_engine):
-        camel_case_name = ''.join(part[:1].upper() + part[1:] for part in tablename.split('_'))
+        camel_case_name = ''.join(part[:1].upper() + part[1:] for part in re.split(r'_|-', tablename))
         return inflect_engine.singular_noun(camel_case_name) or camel_case_name
 
     def _add_attribute(self, attrname, value):