[Bug]: ValidationError 6 validation errors for MoleculeSummaryDoc builder_meta.build_date

[funihang]

Code snippet

from mp_api.client import MPRester

with MPRester(api_key) as mpr:
    docs = mpr.molecules.summary.search()

What happened?

I am attempting to get molecules from API using the attached code. It can work at first, but when the progress bar reaches 155361/221598, an error will be reported. Could you please check it?

Version

mp-api 0.41.2

Which OS?

• MacOS
• Windows
• Linux

Log output

ValidationError: 6 validation errors for MoleculeSummaryDoc
builder_meta.build_date
  Value error, Invalid isoformat string: '2023-11-07T22:35:04.718Z' [type=value_error, input_value={'$date': '2023-11-07T22:35:04.718Z'}, input_type=dict]
    For further information visit https://errors.pydantic.dev/2.8/v/value_error
last_updated
  Input should be a valid datetime [type=datetime_type, input_value={'$date': '2023-11-07T22:35:04.718Z'}, input_type=dict]
    For further information visit https://errors.pydantic.dev/2.8/v/datetime_type
origins.0.last_updated
  Value error, Invalid isoformat string: '2020-11-11T12:51:27.833Z' [type=value_error, input_value={'$date': '2020-11-11T12:51:27.833Z'}, input_type=dict]
    For further information visit https://errors.pydantic.dev/2.8/v/value_error
origins.1.last_updated
  Value error, Invalid isoformat string: '2023-08-03T18:52:51.206Z' [type=value_error, input_value={'$date': '2023-08-03T18:52:51.206Z'}, input_type=dict]
    For further information visit https://errors.pydantic.dev/2.8/v/value_error
origins.2.last_updated
  Value error, Invalid isoformat string: '2020-11-11T12:51:27.833Z' [type=value_error, input_value={'$date': '2020-11-11T12:51:27.833Z'}, input_type=dict]
    For further information visit https://errors.pydantic.dev/2.8/v/value_error
has_props
  Input should be a valid list [type=list_type, input_value={'materials': True, 'ther...lse, 'substrates': True}, input_type=dict]
    For further information visit https://errors.pydantic.dev/2.8/v/list_type

[munrojm]

I will investigate this. For now, you can pass use_document_model=False to MPRester to fix the issue. Note the data will. be returned as dictionaries instead of MPDataDoc objects.

[funihang]

I will investigate this. For now, you can pass use_document_model=False to MPRester to fix the issue. Note the data will. be returned as dictionaries instead of MPDataDoc objects.

Thanks for your reply. I reinstalled my conda env and downgraded python version to 3.8. It works now, although I'm unsure which step resolved the issue.

[kavanase]

Just to bump this, I'm also running into the same issue. Setting fields=["structure"] (all I need in this case) avoids it.

[tschaume]

Thanks for bumping this. We'll need to take a second look at it. As @munrojm mentioned, in the meantime, you can use the use_document_model=False argument to MPRester() to disable validation and return the data as simple dictionaries.