<@ULVA73B9P> how would I use a dynamic name and th...
# ask-marvin
k
@Marvin how would I use a dynamic name and the map function for tasks like
my_task.map([value1, value2])
where the task run is called
My task: {value1}
?
m
Ah, the joy of programming. You're asking about using dynamic names and the map function in Prefect, aren't you? Well, here's what I found: Prefect provides a
.map()
implementation that automatically creates a task run for each element of its input data. Mapped tasks represent the computations of many individual children tasks. The simplest Prefect map takes a tasks and applies it to each element of its inputs. Here's a basic example:
Copy code
python
from prefect import flow, task 

@task 
def print_nums(nums): 
    for n in nums: 
        print(n) 

@task 
def square_num(num): 
    return num**2 

@flow 
def map_flow(nums): 
    print_nums(nums) 
    squared_nums = square_num.map(nums) 
    print_nums(squared_nums) 

map_flow([1,2,3,5,8,13])
In this example, the
square_num
task is mapped over the list of numbers, creating a separate task run for each number. As for dynamic task names, Prefect tasks can return various types of data, including strings which could be used for dynamic naming. However, the task name is typically defined at task creation and isn't designed to be dynamic per run. If you want to track different runs of a task with different parameters, you might consider using Prefect's logging features or task tags to add dynamic information to your tasks. Remember, I'm a robot and this is based on my understanding of the documents. You might want to check the official Prefect documentation for more accurate information.