AttributeError: 'dict' object has no attribute '_composed_schemas'

[hbradlow]

Our use of Plaid transactions started raising this error yesterday:

AttributeError: 'dict' object has no attribute '_composed_schemas'
  File "celery/app/trace.py", line 734, in __protected_call__
    return self.run(*args, **kwargs)
  File "contextlib.py", line 79, in inner
    return func(*args, **kwds)
  File "banking/tasks.py", line 282, in run_plaid_sync
    sync_bank_account(bank_account)
  File "reversion/revisions.py", line 325, in do_revision_context
    return func(*args, **kwargs)
  File "banking/adaptive_plaid/operations.py", line 174, in sync_bank_account
    serializer = PlaidTransactionDeserializer(data=plaid_transaction_data.to_dict())
  File "plaid/model_utils.py", line 520, in to_dict
    return model_to_dict(self, serialize=False)
  File "plaid/model_utils.py", line 1462, in model_to_dict
    result[attr] = [model_to_dict(x, serialize=serialize) for x in value]
  File "plaid/model_utils.py", line 1462, in <listcomp>
    result[attr] = [model_to_dict(x, serialize=serialize) for x in value]
  File "plaid/model_utils.py", line 1447, in model_to_dict
    if model_instance._composed_schemas:

Before yesterday we have used the plaid transactions product for ~6 months without encountering this error. Did something change in the API?

[jfantell]

Setup:
Plaid-Python Version: 11.2.0
OS: Mac OS 13.3.1 (a)
Python Version: Python 3.9.6

I am also seeing this issue for the first time. I had no issues the last time I ran my script on September 21, 2023 using the setup above.

[hbradlow]

@jfantell I upgraded to plaid-python 16.0.0 and the problem went away. But it does seem like there was some breaking change in the API that caused this

[phoenixy1]

This was caused by the release of personal finance categories (see https://plaid.com/docs/transactions/pfc-migration/), which is our new, more accurate categorization system for Transactions. This should not have been a breaking change, but apparently was for some older versions of plaid-python. We've since identified customers who are using older, incompatible versions of plaid-python and excluded them from this feature -- they can contact us to be re-enabled once they've upgraded their client library versions.