Added a couple of try blocks that fixes problems that arise when one uses Gordon McMillan's Python Installer.
Added a couple of try blocks that fixes problems that arise when one uses
Gordon McMillan's Python Installer.

johnkit/vtk-dev,sumedhasingla/VTK,jeffbaumes/jeffbaumes-vtk,johnkit/vtk-dev,spthaolt/VTK,candy7393/VTK,arnaudgelas/VTK,daviddoria/PointGraphsPhase1,demarle/VTK,ashray/VTK-EVM,jeffbaumes/jeffbaumes-vtk,mspark93/VTK,gram526/VTK,hendradarwin/VTK,sankhesh/VTK,SimVascular/VTK,johnkit/vtk-dev,jmerkow/VTK,candy7393/VTK,keithroe/vtkoptix,jmerkow/VTK,demarle/VTK,berendkleinhaneveld/VTK,mspark93/VTK,johnkit/vtk-dev,spthaolt/VTK,gram526/VTK,berendkleinhaneveld/VTK,jeffbaumes/jeffbaumes-vtk,sankhesh/VTK,msmolens/VTK,sumedhasingla/VTK,arnaudgelas/VTK,ashray/VTK-EVM,johnkit/vtk-dev,sankhesh/VTK,collects/VTK,ashray/VTK-EVM,arnaudgelas/VTK,Wuteyan/VTK,sankhesh/VTK,ashray/VTK-EVM,demarle/VTK,sgh/vtk,biddisco/VTK,gram526/VTK,spthaolt/VTK,collects/VTK,aashish24/VTK-old,sumedhasingla/VTK,arnaudgelas/VTK,sumedhasingla/VTK,biddisco/VTK,sgh/vtk,candy7393/VTK,naucoin/VTKSlicerWidgets,cjh1/VTK,cjh1/VTK,biddisco/VTK,SimVascular/VTK,candy7393/VTK,mspark93/VTK,collects/VTK,hendradarwin/VTK,daviddoria/PointGraphsPhase1,berendkleinhaneveld/VTK,demarle/VTK,msmolens/VTK,keithroe/vtkoptix,ashray/VTK-EVM,naucoin/VTKSlicerWidgets,jeffbaumes/jeffbaumes-vtk,mspark93/VTK,jmerkow/VTK,msmolens/VTK,aashish24/VTK-old,sgh/vtk,ashray/VTK-EVM,naucoin/VTKSlicerWidgets,Wuteyan/VTK,SimVascular/VTK,daviddoria/PointGraphsPhase1,cjh1/VTK,Wuteyan/VTK,hendradarwin/VTK,candy7393/VTK,sgh/vtk,berendkleinhaneveld/VTK,hendradarwin/VTK,keithroe/vtkoptix,Wuteyan/VTK,jmerkow/VTK,biddisco/VTK,SimVascular/VTK,gram526/VTK,sgh/vtk,spthaolt/VTK,collects/VTK,naucoin/VTKSlicerWidgets,daviddoria/PointGraphsPhase1,berendkleinhaneveld/VTK,demarle/VTK,jmerkow/VTK,aashish24/VTK-old,jeffbaumes/jeffbaumes-vtk,keithroe/vtkoptix,sankhesh/VTK,keithroe/vtkoptix,SimVascular/VTK,spthaolt/VTK,gram526/VTK,gram526/VTK,daviddoria/PointGraphsPhase1,biddisco/VTK,hendradarwin/VTK,msmolens/VTK,mspark93/VTK,sgh/vtk,hendradarwin/VTK,keithroe/vtkoptix,collects/VTK,arnaudgelas/VTK,naucoin/VTKSlicerWidgets,candy7393/VTK,mspark93/VTK,collects/VTK,SimVascular/VTK,gram526/VTK,demarle/VTK,msmolens/VTK,mspark93/VTK,johnkit/vtk-dev,cjh1/VTK,SimVascular/VTK,sankhesh/VTK,jmerkow/VTK,sumedhasingla/VTK,keithroe/vtkoptix,aashish24/VTK-old,aashish24/VTK-old,ashray/VTK-EVM,hendradarwin/VTK,demarle/VTK,msmolens/VTK,spthaolt/VTK,berendkleinhaneveld/VTK,spthaolt/VTK,naucoin/VTKSlicerWidgets,mspark93/VTK,candy7393/VTK,candy7393/VTK,sumedhasingla/VTK,arnaudgelas/VTK,sumedhasingla/VTK,sankhesh/VTK,ashray/VTK-EVM,msmolens/VTK,aashish24/VTK-old,cjh1/VTK,demarle/VTK,gram526/VTK,keithroe/vtkoptix,biddisco/VTK,msmolens/VTK,sankhesh/VTK,jeffbaumes/jeffbaumes-vtk,Wuteyan/VTK,sumedhasingla/VTK,Wuteyan/VTK,jmerkow/VTK,SimVascular/VTK,berendkleinhaneveld/VTK,biddisco/VTK,Wuteyan/VTK,jmerkow/VTK,johnkit/vtk-dev,daviddoria/PointGraphsPhase1,cjh1/VTK