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JoelBender / BACpypes3

BACnet communications library
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Value error minimum length: 1 #42

Open xkostrna opened 1 month ago

xkostrna commented 1 month ago

Hi, I'm getting error on line 1392 in primitivedata.py file inside CharacterString class, even after further investigation I wasn't able to figure out why is this happening. I would be really happy if you could point me out to finding the root cause.

More info: It keeps happening when I'm trying to use Application.read_property_multiple() method with parameter_list of 200 elements.

JoelBender commented 1 month ago

Object names have a minimum character length of one character, I suspect that the response that you are getting back from the device you are reading from isn't configured correctly.

xkostrna commented 1 month ago

Yes, your suggestion is on point. We resolved the issue yesterday and actually found that we were trying to read property called Object_Name which was actually empty and since your code follows standard which says that this property must have at least one character we got an error. However I think it would be more appropriate to somehow specify which property was problematic in exception message. I wasn't able to figure out until I put some prints into your code.

JoelBender commented 1 month ago

Good idea, labeling this issue as an enhancement request and leaving it open.