Hi, quick question, Is it fine to use

if

inside flow like this:

def flow_func(ip):
    with Flow('flow func') as flow:
        task1()
        if ip == True:
            task2()

It is fine, depending on the value of

ip

, your flow will contain or not contain

task2

. This wouldn’t work if you derived the value of

ip

from within a task, for ex.

ip = task1()

. Because tasks aren’t run, therefore their results are unknown, before

flow.run()

is called.

There is also an interesting PR (https://github.com/PrefectHQ/prefect/pull/2443) that introduces a new case statement that strengthens the conditional support. That would replace your if and my ifelse.

@Sumant Agnihotri that is perfectly fine as long as your goal is to produce a flow that may or may not contain

task2

. If your goal is to always have task2, but only run it sometimes, you’ll need to use a Prefect control-flow statement like the one @Steve Taylor mantioned.

@Jeremiah I suspected as much so I started, ahem reading through the release notes... I've already converted on flow already this morning... on the march to production now. I'll send the medium article to my folks. Thanks!

Awesome!