Fix regressions in appleseed.package.py on macOS
Fix regressions in appleseed.package.py on macOS

est77/appleseed,appleseedhq/appleseed,Vertexwahn/appleseed,Vertexwahn/appleseed,luisbarrancos/appleseed,dictoon/appleseed,aytekaman/appleseed,aytekaman/appleseed,pjessesco/appleseed,luisbarrancos/appleseed,Biart95/appleseed,luisbarrancos/appleseed,Biart95/appleseed,Vertexwahn/appleseed,appleseedhq/appleseed,aytekaman/appleseed,Vertexwahn/appleseed,pjessesco/appleseed,est77/appleseed,appleseedhq/appleseed,dictoon/appleseed,dictoon/appleseed,aytekaman/appleseed,Biart95/appleseed,appleseedhq/appleseed,est77/appleseed,dictoon/appleseed,Biart95/appleseed,luisbarrancos/appleseed,est77/appleseed,pjessesco/appleseed,pjessesco/appleseed,dictoon/appleseed,Biart95/appleseed,Vertexwahn/appleseed,pjessesco/appleseed,aytekaman/appleseed,est77/appleseed,appleseedhq/appleseed,luisbarrancos/appleseed