bramhanandlingala opened a new pull request, #70249:
URL: https://github.com/apache/airflow/pull/70249
closes: #70232
### What
`datetime.datetime`-typed CLI parameters in `airflowctl` (e.g.
`dagrun list --start-date/--end-date`) rejected every input value.
### Root cause
`_python_type_from_string()` in `cli_config.py` mapped
`datetime.datetime` to the bare class as the argparse `type=`
callable. argparse calls `type(value)` on the raw CLI string, so it
tried `datetime.datetime("2026-07-01")` — but that constructor expects
positional `(year, month, day, ...)` ints, not a string, so it always
raised `TypeError`, regardless of the input format.
### Fix
Added `iso_datetime_type()`, a real parser using
`datetime.datetime.fromisoformat()`, and mapped `datetime.datetime` to
it instead of the bare class. This mirrors the existing fix already
applied for `dict` → `json_dict_type`.
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