Could you submit an issue about this problem? We use issues for tracking purposes and, for example, need to decide is this something we should fix in RF 7.1.1 or is waiting for RF 7.2 enough.

Someone setting sys.__stderr__ to None sounds pretty odd. If you have more information about this, please clarify it in the issue.

Could you submit an issue about this problem? We use issues for tracking purposes and, for example, need to decide is this something we should fix in RF 7.1.1 or is waiting for RF 7.2 enough.

Someone setting sys.__stderr__ to None sounds pretty odd. If you have more information about this, please clarify it in the issue.

#5212

This wasn't the only place where sys.__strderr__ was accessed without checking is it None or not. I went all those case through and fixed them in 5efbcde. That fixed #5212 and the fix will be included in RF 7.1.1.