IndexError: bytes index out of range

[MikeZhou-UofT]

When I run the code simple.py on a Pi Pico.

I was getting "IndexError: bytes index out of range" after the internet was connected, but the MQTT broker connection failed.

From line 112 of simple.py: assert resp[0] == 0x20 and resp[1] == 0x02

It was saying "in connect" but afterward, it is giving me IndexError: bytes index out of range. Has anyone had this issue before?

What I have to do is unplug the USB and plug it back in multiple times to make it work.

[Josverl]

Likely, in that case, the resp object is shorter than the two bytes.

The library is simple, it does not handle all possible error, so you may need to wrap it in additional error handling,
also to deal with external glitches in networks , DNS and other interferences.