I have searched the forum and have not seen an answer that solves this for me. I have been using invoked python methods (and some existing robots are still working with this method) for a number of years. However, after the last upgrade 2021.10.4 I am getting the error below, generated from the invoke python method activity. I have tried this on a number of different python code bases to see if it changed the outcome and the summary is: If the python code base invoked is a single function on a single file and does not import another function it works and has no parameters If the python code base invoked is a single file with the called function then invoking other functions in the same file this works even with parameters If the the called function imports a function from another python file, even if it doesn’t use it, the error appears, with or without parameters. This does not appear to be a file size issue as my test cases are just sending json text back and forth (as I have seen commentary that this error can be caused by large files). And in scenarios 1 and 2 it works so it isn’t my python install or version or scope activity. Am I missing something, or is this a limitation? For some of my projects I can make it work with a single file with multiple functions but I would prefer not to compromise the python project structures. Note that the older robots that utilise python fit example 3 and are still working. To trouble shoot this I have: Reinstalled studio Reinstalled the python packages started a completely new project to test the scenarios above RemoteException wrapping System.IO.IOException: Pipe is broken. at System.IO.Pipes.PipeStream.CheckWriteOperations() at System.IO.Pipes.PipeStream.Flush() at System.IO.StreamWriter.Flush(Boolean flushStream, Boolean flushEncoder) at System.IO.StreamWriter.set_AutoFlush(Boolean value) at UiPath.Python.Service.PythonProxy.RequestAsync(PythonRequest request, CancellationToken ct) at UiPath.Python.Service.PythonProxy.Shutdown() at UiPath.Python.Impl.OutOfProcessEngine.Release() at UiPath.Python.Activities.PythonScope.Cleanup() at UiPath.Python.Activities.PythonScope.OnFaulted(NativeActivityFaultContext faultContext, Exception propagatedException, ActivityInstance propagatedFrom) at System.Activities.Runtime.FaultCallbackWrapper.Invoke(NativeActivityFaultContext faultContext, Exception propagatedException, ActivityInstance propagatedFrom) at System.Activities.Runtime.FaultCallbackWrapper.FaultWorkItem.Execute(ActivityExecutor executor, BookmarkManager bookmarkManager)

Hey @timrj This looks like python error. Found this python - IOError: [Errno 32] Broken pipe when piping: `prog.py | othercmd` - Stack Overflow May be give it a try. Thanks #nK

Thanks, i had a look and I don’t think it’s a python problem. The scripts that are invoked work fine when run in isolation. It is only when they are invoked by UIPath that the error occurs. I have also got one working by just bringing every code module into the single file but that is not ideal. I have seen others with the same problem but none seem to have found a solution.

[이미지] timrj: n others with the sa 我也是，找了好多都不行

Same issue here, the python code runs perfectly by PyCharm. but cannot invoke inside UiPath.

I even triggered the same python code base from a web app and it all worked with same params and returned data.

Invoke Python - pipe is broken

Help Studio

shiliqiang (Shiliqiang) 3월 29, 2022, 3:14오전 8

1、Change the Python Version 3.6
2、Change the uipath.python.activities 1.3

Try it~

Getting error in invoking the python code

Error in invoking python code: "pipeline is broken"

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