can I enforce order of the tasks in the flow ? today I noticed that some tasks were scheduled before even though they are right at the end in my code

yup, you can use

upstream_tasks

as follows:

from prefect import task, Flow

@task
def first_task():
    pass

@task
def second_task():
    pass

@task
def third_task():
    pass

with Flow("ex") as flow:
    a = first_task()
    b = second_task(upstream_tasks=[a])
    c = third_task(upstream_tasks=[b])

flow.visualize()

thanks a ton, let me try it out