python-pyusb: add version 1.3.1

PyUSB provides easy USB access in Python via libusb backend:
- Pure Python implementation working with libusb-1.0/0.1.x
- Requires Python >= 3.9
- High-level Pythonic interface to USB devices
- Supports bulk/interrupt/control/isochronous transfers
- Homepage: https://pyusb.github.io/pyusb

Signed-off-by: Alexandru Ardelean <alex@shruggie.ro>

lang/python/python-pyusb/test.sh

@@ -0,0 +1,28 @@
+#!/bin/sh
+
+[ "$1" = python3-pyusb ] || exit 0
+
+python3 - << 'EOF'
+import usb
+import usb.core
+import usb.util
+import usb.control
+import usb.backend.libusb1
+
+# version string is a non-empty string
+assert isinstance(usb.__version__, str) and len(usb.__version__) > 0,     'bad version: ' + repr(usb.__version__)
+
+# exception classes are proper Exception subclasses
+assert issubclass(usb.core.USBError, Exception)
+assert issubclass(usb.core.NoBackendError, Exception)
+
+# find() returns an empty list, or raises NoBackendError when no backend is available
+try:
+    devices = list(usb.core.find(find_all=True))
+    assert isinstance(devices, list), 'find() did not return a list'
+except usb.core.NoBackendError:
+    pass  # acceptable: no USB backend available in test environment
+
+# util.find_descriptor is callable
+assert callable(usb.util.find_descriptor)
+EOF