PDFOperation
org.python.pydev.PyDevBuilder
org.eclipse.jdt.core.javabuilder
org.eclipse.wst.common.project.facet.core.builder
org.eclipse.m2e.core.maven2Builder
org.eclipse.m2e.core.maven2Nature
org.eclipse.wst.common.project.facet.core.nature
org.eclipse.jdt.core.javanature
org.python.pydev.pythonNature