[BUG] Missing inputs when using datetime.date type hint.

[dansola]

Describe the bug

When using datetime.date as a type hint in a task, flyte appears to lose the input file:

FileNotFoundError: Failed to convert inputs of task 'wf.hello_date':
  [Errno 2] No such file or directory: '/var/folders/yv/l9q99njs4x35fp3x2_g8gykh0000gn/T/flyte-3c_0m7fn/raw/4f3290e595dcb84915aa481e45b92074/1f3c185c4a74647a397e5ca43ddcb5b3'

Expected behavior

Flyte should recognize the datetime.date object the same way it recognizes the datetime object.

Additional context to reproduce

Good example:

@task
def hello_date(date: datetime):
    print(f"Today is {str(date)}")

@workflow
def wf(date: datetime):
    hello_date(date=date)

pyflyte run --remote -p daniel date_bug/wf.py wf --date "2024-01-03"

This has no errors and works as expected.

Bad example:

@task
def hello_date(date: datetime.date):
    print(f"Today is {str(date)}")

@workflow
def wf(date: datetime.date):
    hello_date(date=date)

pyflyte run --remote -p daniel date_bug/wf.py wf --date "2024-01-03"

This results in the error:

FileNotFoundError: Failed to convert inputs of task 'wf.hello_date':
  [Errno 2] No such file or directory: '/var/folders/yv/l9q99njs4x35fp3x2_g8gykh0000gn/T/flyte-3c_0m7fn/raw/4f3290e595dcb84915aa481e45b92074/1f3c185c4a74647a397e5ca43ddcb5b3

Screenshots

No response

Are you sure this issue hasn't been raised already?

• [X] Yes

Have you read the Code of Conduct?

• [X] Yes

[runllm[bot]]

Flyte currently does not support the datetime.date object for passing to or from tasks. According to this GitHub issue, the Flyte team is aware of the limitation and has discussed adding a type transformer to support datetime.date. As a workaround, you can use datetime.datetime or convert the date to a string.

Would you like more details on how to implement this workaround?

Sources:

• https://github.com/flyteorg/flyte/issues/3026

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[mao3267]

@dansola Have you solved the problem? It seems to work on flytekit 1.12.3. Are you using an older version?

[dansola]

@mao3267 You're right. This was happening on 1.12.0. I'll close this, thanks!