I installed the usdpython-0.66.pkg and also used the recommended python 3.7.9 release. Only some of the simpler sample code worked. The 103_simpleMaterial.py failed with the following error message:
Traceback (most recent call last):
File "/Applications/usdpython/samples/103_simpleMaterial.py", line 41, in
material.CreateSurfaceOutput().ConnectToSource(pbrShader, 'surface')
Boost.Python.ArgumentError: Python argument types in
Output.ConnectToSource(Output, Shader, str)
did not match C++ signature:
ConnectToSource(pxrInternal_v0_22__pxrReserved__::UsdShadeOutput {lvalue}, pxrInternal_v0_22__pxrReserved__::UsdShadeOutput sourceOutput)
ConnectToSource(pxrInternal_v0_22__pxrReserved__::UsdShadeOutput {lvalue}, pxrInternal_v0_22__pxrReserved__::UsdShadeInput sourceInput)
ConnectToSource(pxrInternal_v0_22__pxrReserved__::UsdShadeOutput {lvalue}, pxrInternal_v0_22__pxrReserved__::SdfPath sourcePath)
ConnectToSource(pxrInternal_v0_22__pxrReserved__::UsdShadeOutput {lvalue}, pxrInternal_v0_22__pxrReserved__::UsdShadeConnectableAPI source, pxrInternal_v0_22__pxrReserved__::TfToken sourceName, pxrInternal_v0_22__pxrReserved__::UsdShadeAttributeType sourceType=pxr.UsdShade.AttributeType.Output, pxrInternal_v0_22__pxrReserved__::SdfValueTypeName typeName=<pxr.Sdf.ValueTypeName object at 0x7fc9702e4120>)
ConnectToSource(pxrInternal_v0_22__pxrReserved__::UsdShadeOutput {lvalue}, pxrInternal_v0_22__pxrReserved__::UsdShadeConnectionSourceInfo source, pxrInternal_v0_22__pxrReserved__::UsdShadeConnectionModification mod=pxr.UsdShade.ConnectionModification.Replace)
It seems that the error is from the Boost.Python with mismatched parameters. Did anyone run this sample code successfully?