Hey Ismael - the start argument to that function is actually a datetime object, not a string. You'll want to turn it into a string within that function (by calling str(start)) or start.strftime for a particular date format)

Which function? The partitioned_logs_configuration(start) you mean?

Yeah, exactly

I've just changed and still the same error

Would you mind posting the new code?

from datetime import datetime start: datetime, _end: datetime

Those are typehints - they don't change the actual logic that executes. The most important change to make is is to make that "date" key in your dictionary point at a string, not a datetime object

Humm, I'll try something, just a second