Pysolr 3.9.0 error JSON serializing datetime

[jazzdup]

2021-04-22 09:50:12,129 [DEBUG] pysolr:1003 - Starting to build add request... 2021-04-22 09:50:37,744 [CRITICAL] mongo_connector.oplog_manager:713 - Exception during collection dump Traceback (most recent call last): File "/home/al/dev/zapper/projects/etl2/lib/python3.8/site-packages/mongo_connector/oplog_manager.py", line 668, in do_dump upsert_all(dm) File "/home/al/dev/zapper/projects/etl2/lib/python3.8/site-packages/mongo_connector/oplog_manager.py", line 651, in upsert_all dm.bulk_upsert(docs_to_dump(from_coll), mapped_ns, long_ts) File "/home/al/dev/zapper/projects/etl2/lib/python3.8/site-packages/mongo_connector/util.py", line 33, in wrapped return f(*args, **kwargs) File "/home/al/dev/zapper/projects/etl2/lib/python3.8/site-packages/mongo_connector/doc_managers/solr_doc_manager.py", line 299, in bulk_upsert self.solr.add(batch, **add_kwargs) File "/home/al/dev/zapper/projects/etl2/lib/python3.8/site-packages/pysolr.py", line 1018, in add m = json.dumps(message).encode("utf-8") File "/usr/lib/python3.8/json/__init__.py", line 231, in dumps return _default_encoder.encode(obj) File "/usr/lib/python3.8/json/encoder.py", line 199, in encode chunks = self.iterencode(o, _one_shot=True) File "/usr/lib/python3.8/json/encoder.py", line 257, in iterencode return _iterencode(o, 0) File "/usr/lib/python3.8/json/encoder.py", line 179, in default raise TypeError(f'Object of type {o.__class__.__name__} ' TypeError: Object of type datetime is not JSON serializable 2021-04-22 09:50:37,747 [ERROR] mongo_connector.oplog_manager:723 - OplogThread: Failed during dump collection cannot recover!

[jazzdup]

this is fixed by downgrading pysolr to 3.8.1