Ensure GIL before calling Python API
Ensure GIL before calling Python API

cryos/tomviz,cryos/tomviz,OpenChemistry/tomviz,OpenChemistry/tomviz,mathturtle/tomviz,cryos/tomviz,thewtex/tomviz,mathturtle/tomviz,OpenChemistry/tomviz,thewtex/tomviz,cjh1/tomviz,OpenChemistry/tomviz,cjh1/tomviz,thewtex/tomviz,mathturtle/tomviz,cjh1/tomviz