René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Null Reference Exception","articleBody":"Hi! I tried clearing the whole vscode directory and reinstalled vscode and every plugin, but I still get this error. But strangely it only happen on one of my computers. On all others it works fine. Could you pls help? thx!\r\n\r\nstep to reproduce:\r\nopen vscode, open a .py file, and wait for around 10 sec.\r\n\r\n```\r\nStarting Microsoft Python language server.\r\n##########Linting Output - pylint##########\r\n\r\n--------------------------------------------------------------------\r\n\r\nYour code has been rated at 10.00/10 (previous run: 10.00/10, +0.00)\r\n\r\n\r\n\r\nMicrosoft Python Language Server version 0.1.75.0\r\nInitializing for C:\\Program Files\\Python37\\python.exe\r\n[Error - 9:13:37 PM] System.NullReferenceException: Object reference not set to an instance of an object.\r\n   at Microsoft.PythonTools.Analysis.AnalysisSet.Split[T](IAnalysisSet set, IReadOnlyList`1\u0026 ofType, IAnalysisSet\u0026 rest)\r\n   at Microsoft.PythonTools.Analysis.Analyzer.ExpressionEvaluatorAnnotationConverter.FinalizeNames(IAnalysisSet types)\r\n   at Microsoft.PythonTools.Analysis.Analyzer.ExpressionEvaluatorAnnotationConverter.MakeGeneric(IAnalysisSet baseType, IReadOnlyList`1 args)\r\n   at Microsoft.PythonTools.Parsing.Ast.TypeAnnotation.Walker.MakeGenericOp.Apply[T](TypeAnnotationConverter`1 converter, Stack`1 stack)\r\n   at Microsoft.PythonTools.Parsing.Ast.TypeAnnotation.Walker.GetResult[T](TypeAnnotationConverter`1 converter)\r\n   at Microsoft.PythonTools.Analysis.Values.TypingTypeInfo.\u003c\u003ec__DisplayClass8_0.\u003cGetIndex\u003eb__0(Node n)\r\n   at Microsoft.PythonTools.Analysis.Analyzer.InterpreterScope.GetOrMakeNodeValue(Node node, NodeValueKind kind, Func`2 maker)\r\n   at Microsoft.PythonTools.Analysis.AnalysisValueSetExtensions.GetIndex(IAnalysisSet self, Node node, AnalysisUnit unit, IAnalysisSet index)\r\n   at Microsoft.PythonTools.Analysis.Analyzer.ExpressionEvaluator.EvaluateWorker(Node node)\r\n   at Microsoft.PythonTools.Analysis.Analyzer.DDG.Walk(ReturnStatement node)\r\n   at Microsoft.PythonTools.Parsing.Ast.ReturnStatement.Walk(PythonWalker walker)\r\n   at Microsoft.PythonTools.Analysis.Analyzer.DDG.Walk(SuiteStatement node)\r\n   at Microsoft.PythonTools.Parsing.Ast.SuiteStatement.Walk(PythonWalker walker)\r\n   at Microsoft.PythonTools.Analysis.Analyzer.FunctionAnalysisUnit.AnalyzeWorker(DDG ddg, CancellationToken cancel)\r\n   at Microsoft.PythonTools.Analysis.Analyzer.DDG.Analyze(Deque`1 queue, CancellationToken cancel, Action`1 reportQueueSize, Int32 reportQueueInterval)\r\n   at Microsoft.PythonTools.Analysis.PythonAnalyzer.AnalyzeQueuedEntries(CancellationToken cancel)\r\n   at Microsoft.PythonTools.Intellisense.AnalysisQueue.GroupAnalysis.Analyze(CancellationToken cancel)\r\n   at Microsoft.PythonTools.Intellisense.AnalysisQueue.HandleAnalyzable(IAnalyzable item, AnalysisPriority priority, CancellationToken cancellationToken)\r\n   at Microsoft.PythonTools.Intellisense.AnalysisQueue.ConsumerLoop()\r\n[Error - 9:13:37 PM] System.NullReferenceException: Object reference not set to an instance of an object.\r\n   at Microsoft.PythonTools.Analysis.AnalysisSet.Split[T](IAnalysisSet set, IReadOnlyList`1\u0026 ofType, IAnalysisSet\u0026 rest)\r\n   at Microsoft.PythonTools.Analysis.Analyzer.ExpressionEvaluatorAnnotationConverter.FinalizeNames(IAnalysisSet types)\r\n   at Microsoft.PythonTools.Analysis.Analyzer.ExpressionEvaluatorAnnotationConverter.MakeGeneric(IAnalysisSet baseType, IReadOnlyList`1 args)\r\n   at Microsoft.PythonTools.Parsing.Ast.TypeAnnotation.Walker.MakeGenericOp.Apply[T](TypeAnnotationConverter`1 converter, Stack`1 stack)\r\n   at Microsoft.PythonTools.Parsing.Ast.TypeAnnotation.Walker.GetResult[T](TypeAnnotationConverter`1 converter)\r\n   at Microsoft.PythonTools.Analysis.Values.TypingTypeInfo.\u003c\u003ec__DisplayClass8_0.\u003cGetIndex\u003eb__0(Node n)\r\n   at Microsoft.PythonTools.Analysis.Analyzer.InterpreterScope.GetOrMakeNodeValue(Node node, NodeValueKind kind, Func`2 maker)\r\n   at Microsoft.PythonTools.Analysis.AnalysisValueSetExtensions.GetIndex(IAnalysisSet self, Node node, AnalysisUnit unit, IAnalysisSet index)\r\n   at Microsoft.PythonTools.Analysis.Analyzer.ExpressionEvaluator.EvaluateWorker(Node node)\r\n   at Microsoft.PythonTools.Analysis.Analyzer.DDG.Walk(ReturnStatement node)\r\n   at Microsoft.PythonTools.Parsing.Ast.ReturnStatement.Walk(PythonWalker walker)\r\n   at Microsoft.PythonTools.Analysis.Analyzer.DDG.Walk(SuiteStatement node)\r\n   at Microsoft.PythonTools.Parsing.Ast.SuiteStatement.Walk(PythonWalker walker)\r\n   at Microsoft.PythonTools.Analysis.Analyzer.FunctionAnalysisUnit.AnalyzeWorker(DDG ddg, CancellationToken cancel)\r\n   at Microsoft.PythonTools.Analysis.Analyzer.DDG.Analyze(Deque`1 queue, CancellationToken cancel, Action`1 reportQueueSize, Int32 reportQueueInterval)\r\n   at Microsoft.PythonTools.Analysis.PythonAnalyzer.AnalyzeQueuedEntries(CancellationToken cancel)\r\n   at Microsoft.PythonTools.Intellisense.AnalysisQueue.GroupAnalysis.Analyze(CancellationToken cancel)\r\n   at Microsoft.PythonTools.Intellisense.AnalysisQueue.HandleAnalyzable(IAnalyzable item, AnalysisPriority priority, CancellationToken cancellationToken)\r\n   at Microsoft.PythonTools.Intellisense.AnalysisQueue.ConsumerLoop()\r\n```\r\nhttps://github.com/Microsoft/vscode-python/issues/3970","author":{"url":"https://github.com/jerryc05","@type":"Person","name":"jerryc05"},"datePublished":"2019-01-17T13:27:27.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":4},"url":"https://github.com/534/python-language-server/issues/534"}