Hello! We found bug in SA version `1.4.38` during deserialization. How to reproduce:
Serialize any ORM object with pickle using environment with any SA compatible version `1.4.n` except `1.4.38` in , ex. `1.4.31`: ``` pickle.dumps(obj) ``` Deserialize result using environment with SA version == `1.4.38`: ``` obj_loaded = pickle.loads(b'\x... ``` Got: ``` Traceback (most recent call last): File "/home/user/anaconda3/envs/python375/lib/python3.7/code.py", line 90, in runcode exec(code, self.locals) File "<input>", line 1, in <module> File "/home/user/anaconda3/envs/python375/lib/python3.7/site-packages/sqlalchemy/orm/state.py", line 577, in __setstate__ state_dict["manager"](self, inst, state_dict) File "/home/user/anaconda3/envs/python375/lib/python3.7/site-packages/sqlalchemy/orm/instrumentation.py", line 506, in __call__ manager.dispatch.unpickle(state, state_dict) File "/home/user/anaconda3/envs/python375/lib/python3.7/site-packages/sqlalchemy/event/attr.py", line 343, in __call__ fn(*args, **kw) File "/home/user/anaconda3/envs/python375/lib/python3.7/site-packages/sqlalchemy/ext/mutable.py", line 505, in unpickle for val in state_dict["ext.mutable.values"][key]: TypeError: list indices must be integers or slices, not str ``` Seems that backward compatibility is lost. -- SQLAlchemy - The Python SQL Toolkit and Object Relational Mapper http://www.sqlalchemy.org/ To post example code, please provide an MCVE: Minimal, Complete, and Verifiable Example. See http://stackoverflow.com/help/mcve for a full description. --- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sqlalchemy+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sqlalchemy/f1ef4019-5ce4-4d14-938e-7a58f17db807n%40googlegroups.com.
