Loading xcf file with guidlines fails

[odeaxcsh]

It's simple if there are any guidelines in the file, the following error occurs.

I am using gimpformats==2023 version, which I assume is the latest.

self.document = GimpDocument(filePath)
  File ".../python3.10/site-packages/gimpformats/gimpXcfDocument.py", line 80, in __init__
    self.load(fileName)
  File ".../python3.10/site-packages/gimpformats/gimpXcfDocument.py", line 88, in load
    self.decode(data)
  File ".../python3.10/site-packages/gimpformats/gimpXcfDocument.py", line 133, in decode
    self._propertiesDecode(ioBuf)
  File ".../python3.10/site-packages/gimpformats/GimpIOBase.py", line 668, in _propertiesDecode
    self._propertyDecode(propertyType, ioBuf.getBytes(dataLength))
  File ".../python3.10/site-packages/gimpformats/GimpIOBase.py", line 408, in _propertyDecode
    self._guidelinesDecode(data)
  File ".../python3.10/site-packages/gimpformats/GimpIOBase.py", line 268, in _guidelinesDecode
    isVertical = struct.unpack(">c", data[index])[0] == 2
TypeError: a bytes-like object is required, not 'int'

[odeaxcsh]

I am open to fixing the bug if you accept new pull requests.

[Gnumaru]

This repository seems to be dead. Your PR would be for naught.