diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/sqlalchemy/orm/__init__.py | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/sqlalchemy/orm/__init__.py b/lib/sqlalchemy/orm/__init__.py index 12bbc3af4..9201866e8 100644 --- a/lib/sqlalchemy/orm/__init__.py +++ b/lib/sqlalchemy/orm/__init__.py @@ -604,7 +604,7 @@ def clear_mappers(): """ mapperlib._COMPILE_MUTEX.acquire() try: - for mapper in _mapper_registry: + for mapper in list(_mapper_registry): mapper.dispose() finally: mapperlib._COMPILE_MUTEX.release() |