I m using prefect 2 3 and having trouble running a new flow

Question

I m using prefect 2 3 and having trouble running a new flow One of my tasks instantiates a class and returns it then fails with the following error ```cannot pickle thread lock object``` I have found some methods to get around this for v1 but I can t find anything for v2 How can I get this flow to run

Zanie · Answer

We re working on allowing persistence of results to be disabled

Zanie · Answer

In the meantime you d have to ensure your class is serializable It looks like it s got a threading Lock attached to it

Richard Alexander · Answer

I m running some Selenium Firefox scripts so webdriver must have a thread lock yes

Richard Alexander · Answer

< Zanie> Will it work if I don t return the results from a task just use a normal method instead as a workaround

Zanie · Answer

Yeah definitely

Richard Alexander · Answer

That did work Thanks for the help Michael smile