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Pinning the tech set-up guide as a PDF here! Please let me know if you have any trouble accessing it.

Hi Clearcover team! Just a quick note that I have upcoming PTO and will be out of office starting on Tuesday May 30, returning *Thursday June 8 (*the Prefect office is also closed on Monday May 29 in observance of Memorial Day). If you have questions about the course, please ping @Jeff Hale and @Emil Christensen directly in this channel! They are teaching the course and will be able to assist. Thank you and I hope you all have a great long weekend!

hi all, was going through the setup + was getting the below error when testing out the

flowtest.py

Traceback (most recent call last):
  File "/Users/preyna/prefect_training/prefect_training_venv/lib/python3.8/site-packages/prefect/client/orchestration.py", line 322, in api_healthcheck
    await self._client.get("/health")
  File "/Users/preyna/prefect_training/prefect_training_venv/lib/python3.8/site-packages/httpx/_client.py", line 1757, in get
    return await self.request(
  File "/Users/preyna/prefect_training/prefect_training_venv/lib/python3.8/site-packages/httpx/_client.py", line 1530, in request
    return await self.send(request, auth=auth, follow_redirects=follow_redirects)
  File "/Users/preyna/prefect_training/prefect_training_venv/lib/python3.8/site-packages/prefect/client/base.py", line 280, in send
    response.raise_for_status()
  File "/Users/preyna/prefect_training/prefect_training_venv/lib/python3.8/site-packages/prefect/client/base.py", line 138, in raise_for_status
    raise PrefectHTTPStatusError.from_httpx_error(exc) from exc.__cause__
prefect.exceptions.PrefectHTTPStatusError: Client error '401 Unauthorized' for url '<https://api.prefect.cloud/api/accounts/33773d38-ee00-4099-971a-e48a469e08a5/workspaces/dce563b9-ab83-49b5-843e-de6bf578d0fb/health>'
Response: {'detail': 'Invalid authentication credentials'}
For more information check: <https://httpstatuses.com/401>

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "flow_test.py", line 10, in <module>
    test_flow()
  File "/Users/preyna/prefect_training/prefect_training_venv/lib/python3.8/site-packages/prefect/flows.py", line 511, in __call__
    return enter_flow_run_engine_from_flow_call(
  File "/Users/preyna/prefect_training/prefect_training_venv/lib/python3.8/site-packages/prefect/engine.py", line 208, in enter_flow_run_engine_from_flow_call
    retval = from_sync.wait_for_call_in_loop_thread(
  File "/Users/preyna/prefect_training/prefect_training_venv/lib/python3.8/site-packages/prefect/_internal/concurrency/api.py", line 243, in wait_for_call_in_loop_thread
    return call.result()
  File "/Users/preyna/prefect_training/prefect_training_venv/lib/python3.8/site-packages/prefect/_internal/concurrency/calls.py", line 283, in result
    return self.future.result(timeout=timeout)
  File "/Users/preyna/prefect_training/prefect_training_venv/lib/python3.8/site-packages/prefect/_internal/concurrency/calls.py", line 169, in result
    return self.__get_result()
  File "/Users/preyna/.pyenv/versions/3.8.11/lib/python3.8/concurrent/futures/_base.py", line 389, in __get_result
    raise self._exception
  File "/Users/preyna/prefect_training/prefect_training_venv/lib/python3.8/site-packages/prefect/_internal/concurrency/calls.py", line 346, in _run_async
    result = await coro
  File "/Users/preyna/prefect_training/prefect_training_venv/lib/python3.8/site-packages/prefect/client/utilities.py", line 40, in with_injected_client
    return await fn(*args, **kwargs)
  File "/Users/preyna/prefect_training/prefect_training_venv/lib/python3.8/site-packages/prefect/engine.py", line 263, in create_then_begin_flow_run
    await check_api_reachable(client, "Cannot create flow run")
  File "/Users/preyna/prefect_training/prefect_training_venv/lib/python3.8/site-packages/prefect/engine.py", line 2329, in check_api_reachable
    raise RuntimeError(
RuntimeError: Cannot create flow run. Failed to reach API at <https://api.prefect.cloud/api/accounts/33773d38-ee00-4099-971a-e48a469e08a5/workspaces/dce563b9-ab83-49b5-843e-de6bf578d0fb/>.

Good morning all! 🎉 We’ll get the Zoom room opened around 11:45am ET and going at noon ET. See you then!

Give me a 👍 if you can see this!

The lemurs at the National Zoo are so fun! Hoping to see them this weekend.

redwall 👌

@Nate- gotta put whatever that was you said in Slack

@Nick Fox - what was that?

an okapi!

image.png

quokka

backyard duck flock

horned frog

smilodon

Docs: https://docs.prefect.io/latest/

101 Lab Instructions • Write flow code that fetches other weather metrics • Make at least 3 tasks in the flow • Example: windspeed for the last hour: _weather.json()[“hourly”][“windspeed_10m”][0]_ ◦ Docs: open-meteo.com/en/docs

101 Stretch Goal • Use the task’s map function to find the temperatures across a range of lats and longs

Repo: https://github.com/discdiver/pacc-2023

We’ll be circulating around the breakout rooms soon, but if anyone is new to Python or needs help, don’t hesitate to post here and we’ll come to ya!

One person from each group share your code in this thread here.

We’ll regroup to kick off module 2 at 1pm ET (13 min).

You can also configure

PREFECT_LOGGING_LOG_PRINTS=true

in your environment to always log prints (docs)

Noticed that specifying a few non-dependent tasks in a flow execute synchronously? I believe this would be different than Prefect 1 which were non-blocking by default?

More on results serializers: https://docs.prefect.io/2.10.13/concepts/results/#result-serializer

Example of a custom caching function (🧵)

If you want to manually refresh the cache you can check out the docs here.

Bubba Gumps is the new canonical name for Forrest Gump