invalid literal for int() with base 16: ',0'

[jingyq1]

when I tried to run tutorials file "ready_to_localize.py", it cannot continuously repeat the loop.
File "/home/alpha/anaconda2/envs/pypa3/lib/python3.5/site-packages/pypozyx-1.3.0-py3.5.egg/pypozyx/structures/byte_structure.py", line 33, in bytes_to_data
ValueError: invalid literal for int() with base 16: ',0'
I think this bug is caused by unpack problem
Is there any way to solve that?

python 3.6
pypozyx

[AndreasAntener]

I encounter similar issues:

  File "/usr/local/lib/python3.9/site-packages/pypozyx-1.3.0-py3.9.egg/pypozyx/lib.py", line 1089, in doPositioning
    status = self.doPositioningWithData(position_data, remote_id=remote_id, timeout=timeout)
  File "/usr/local/lib/python3.9/site-packages/pypozyx-1.3.0-py3.9.egg/pypozyx/lib.py", line 1143, in doPositioningWithData
    return self.getPositioningData(positioning_data)
  File "/usr/local/lib/python3.9/site-packages/pypozyx-1.3.0-py3.9.egg/pypozyx/lib.py", line 1129, in getPositioningData
    positioning_data.load_bytes(r[2:])
  File "/usr/local/lib/python3.9/site-packages/pypozyx-1.3.0-py3.9.egg/pypozyx/structures/sensor_data.py", line 462, in load_bytes
    self.bytes_to_data()
  File "/usr/local/lib/python3.9/site-packages/pypozyx-1.3.0-py3.9.egg/pypozyx/structures/byte_structure.py", line 34, in bytes_to_data
    self.load_packed(s)
  File "/usr/local/lib/python3.9/site-packages/pypozyx-1.3.0-py3.9.egg/pypozyx/structures/byte_structure.py", line 42, in load_packed
    self.data[i] = struct.unpack(self.data_format[i], packed[
struct.error: unpack requires a buffer of 4 bytes

There is defeinitely something off with the parsing, maybe related to bad data. But it's not handled by the library. These errors pop up every 100 doPositioning calls for me.

For a working application, the library calls for ranging or positioning need to be in a try/catch block.

[laurentva]

Hey Andreas, we're going to follow this up via the support mail. For others that encounter this issue: please make a new issue and include the Pozyx code you're using.