java.lang.NullPointerException
        at org.netbeans.modules.python.editor.scopes.ScopesCompiler.visitImport(ScopesCompiler.java:356)
        at org.python.antlr.ast.Import.accept(Import.java:131)
        at org.python.antlr.Visitor.visit(Visitor.java:26)
        at org.netbeans.modules.python.editor.scopes.ScopesCompiler.suite(ScopesCompiler.java:334)
        at org.netbeans.modules.python.editor.scopes.ScopesCompiler.visitModule(ScopesCompiler.java:181)
        at org.python.antlr.ast.Module.accept(Module.java:120)
        at org.python.antlr.Visitor.visit(Visitor.java:26)
        at org.netbeans.modules.python.editor.scopes.ScopesCompiler.parse(ScopesCompiler.java:138)
        at org.netbeans.modules.python.editor.scopes.SymbolTable.<init>(SymbolTable.java:140)
        at org.netbeans.modules.python.editor.PythonParserResult.getSymbolTable(PythonParserResult.java:107)
        at org.netbeans.modules.python.editor.hints.PythonHintsProvider.computeErrors(PythonHintsProvider.java:97)
        at org.netbeans.modules.gsfret.hints.GsfHintsProvider.run(GsfHintsProvider.java:326)
        at org.netbeans.modules.gsfret.hints.GsfHintsProvider.run(GsfHintsProvider.java:93)
        at org.netbeans.napi.gsfret.source.Source$CompilationJob.run(Source.java:1417)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
        at java.util.concurrent.FutureTask.run(FutureTask.java:138)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at java.lang.Thread.run(Thread.java:619)