[Feedback/Error] JSON serialisation issue when trying to log a metric of variable type set

• Weights and Biases version: 0.8.32
• Python version: 3.7.2
• Operating System: Linux/MacOS

Description

I was logging a variable/value that is of type set this caused JSON serialisation issues, similar to the error reported here https://stackoverflow.com/questions/8230315/how-to-json-serialize-sets (JSON serialisation failing when handling data with set data types).

Although the way python reported the error (low-level call stack information), it wasn’t clear if it was caused by wandb coming from my code. I looked to look at it closer, googled and then looked at my last commit change lead me to the solution.

What I Did

a = {'a', 'b', 'c'}
wandb.log({'metric': a})

Removing the line of code that logged the metric, resolved the issue. I then converted variable to a list and that worked fine.

I would suggest if we try to log an unsupported data-type, that warnings be reported during logging not when synchronising with remote. Also maybe some sort of error handling be introduced around conversions, so if they fail the user gets a call stack.

[neomatrix369]

Hey @neomatrix369 In the past year we’ve majorly reworked the CLI and UI for Weights & Biases. We’re closing issues older than 6 months. Please comment to reopen.

Thanks for letting me know, I trust the raised issue is fixed in the newer version, I haven’t played with it yet look forward to it.

[ariG23498]

Hey @neomatrix369 In the past year we’ve majorly reworked the CLI and UI for Weights & Biases. We’re closing issues older than 6 months. Please comment to reopen.