Hello, I know if I want to output say 5 rows from a pandas dataframe in dagit's log output, I could use the EventMetaData feature of dagster (per https://github.com/dagster-io/dagster/issues/3234), but I would think I should be able to just output it using the context.log.info() function. I get an error if I do:

<http://context.log.info|context.log.info>(df_final.sample(n=5).transpose())

Error message:

dagster.core.errors.DagsterExecutionStepExecutionError: Error occurred while executing solid "feature_selection":

File "D:\Python38\envs\ashli_dev\lib\site-packages\dagster\core\execution\plan\execute_plan.py", line 190, in _dagster_event_sequence_for_step

for step_event in check.generator(step_events):

File "D:\Python38\envs\ashli_dev\lib\site-packages\dagster\core\execution\plan\execute_step.py", line 311, in core_dagster_event_sequence_for_step

for user_event in check.generator(

File "D:\Python38\envs\ashli_dev\lib\site-packages\dagster\core\execution\plan\execute_step.py", line 70, in _step_output_error_checked_user_event_sequence

for user_event in user_event_sequence:

File "D:\Python38\envs\ashli_dev\lib\site-packages\dagster\core\execution\plan\execute_step.py", line 596, in _user_event_sequence_for_step_compute_fn

for event in iterate_with_context(

File "D:\Python38\envs\ashli_dev\lib\site-packages\dagster\utils\__init__.py", line 363, in iterate_with_context

return

File "D:\Python38\lib\contextlib.py", line 131, in __exit__

self.gen.throw(type, value, traceback)

File "D:\Python38\envs\ashli_dev\lib\site-packages\dagster\core\errors.py", line 197, in user_code_error_boundary

raise error_cls(

The above exception was caused by the following exception:

dagster.check.ParameterCheckError: Param "msg" is not a str. Got 681 214 212 230 521

Parch 0 0 0 0 0

Fare 76.7292 7.75 7.25 83.475 7.8958

Embarked C Q S S S

Sex male male male female male

Name Hassab, Mr. Hammad Kiernan, Mr. Philip Perkin, Mr. John Henry Harris, Mrs. Henry Birkhardt (Irene Wallach) Vovk, Mr. Janko

Age 27 NaN 22 35 22

Survived 1 0 0 1 0 which is type <class 'pandas.core.frame.DataFrame'>.

However, I get no error if I do:

<http://context.log.info|context.log.info>(f"5 random rows: \n {df_final.sample(n=5).transpose()}")

I get the output that I expect. With Python's standard lib logger, I can output a partial dataframe without using f-string or having to convert to string.

the loggers don't coerce with

str

, but maybe they should

Hey @max, You're right, loggers shouldn't have to coerce to str, Im with dagster's philosophy with being type strict, so I am ok with this behavior as is.