연습 문제

Creating a FileSensor

After reading about FileSensors, you decide to try to implement a basic one to get a feel for some of the parameters used with them. This FileSensor will be designed to make sure a specific datafile is present before continuing.

A FileSensor polls for the file at a regular interval and stops waiting once timeout seconds have elapsed. With mode='reschedule', the worker slot is released between polls.

지침

100 XP

Import the appropriate library to use a FileSensor.
Set the precheck reference to the FileSensor object.
Make the FileSensor look for the file "salesdata_ready.csv".
Set the timeout to 5 minutes.

.css-6su6fj{-webkit-flex-shrink:0;-ms-flex-negative:0;flex-shrink:0;}연습 문제

지침

연습 문제