Ironpython 2.7.9 ImportException: 'No Module Named errno' when importing another module in .NET application












1















I am attempting to run a simple python script within my .net application using IronPython. I have installed the nuget package into the project (I have NOT installed the ironpython cli on my machine) and have authored this code to handle setting paths, reading output, and setting input.



this.engine = Python.CreateEngine();
this.scope = this.engine.CreateScope();

this.streamOut = new MemoryStream();
this.streamErr = new MemoryStream();
this.engine.Runtime.IO.SetOutput(this.streamOut, Encoding.Default);
this.engine.Runtime.IO.SetErrorOutput(this.streamErr, Encoding.Default);

// this is a locally set environment variable
string pythonRootPath = Environment.GetEnvironmentVariable("PythonPath");
ICollection<string> searchPaths = engine.GetSearchPaths();
searchPaths.Add($@"{pythonRootPath}Libsite-packages");
searchPaths.Add($@"{pythonRootPath}Lib");
engine.SetSearchPaths(searchPaths);

this.engine.Execute(@"import jinja2");


Executing the script results in the following exception



IronPython.Runtime.Exceptions.ImportException: 'No module named errno'


My C# project has references to the following relevant (to IronPython) assemblies:




  • IronPython (v2.7.9)

  • IronPython.Modules

  • IronPython.SQLite

  • IronPython.Wpf

  • Microsoft.Dynamic

  • Microsoft.Scripting

  • Microsoft.Scripting.Metadata


My paths appear to be well enough set for my purposes as it's not the import of jinja2 itself that causes the error and I am able to import some standard library modules. However, I've seen that the os package fails to import for the same reason as jinja2. I also cannot import errno directly as expected, but I can import it directly if I run it via the python 2.7 cli so the package is installed.



I'm very much out of ideas here if anyone has any suggestions.










share|improve this question





























    1















    I am attempting to run a simple python script within my .net application using IronPython. I have installed the nuget package into the project (I have NOT installed the ironpython cli on my machine) and have authored this code to handle setting paths, reading output, and setting input.



    this.engine = Python.CreateEngine();
    this.scope = this.engine.CreateScope();

    this.streamOut = new MemoryStream();
    this.streamErr = new MemoryStream();
    this.engine.Runtime.IO.SetOutput(this.streamOut, Encoding.Default);
    this.engine.Runtime.IO.SetErrorOutput(this.streamErr, Encoding.Default);

    // this is a locally set environment variable
    string pythonRootPath = Environment.GetEnvironmentVariable("PythonPath");
    ICollection<string> searchPaths = engine.GetSearchPaths();
    searchPaths.Add($@"{pythonRootPath}Libsite-packages");
    searchPaths.Add($@"{pythonRootPath}Lib");
    engine.SetSearchPaths(searchPaths);

    this.engine.Execute(@"import jinja2");


    Executing the script results in the following exception



    IronPython.Runtime.Exceptions.ImportException: 'No module named errno'


    My C# project has references to the following relevant (to IronPython) assemblies:




    • IronPython (v2.7.9)

    • IronPython.Modules

    • IronPython.SQLite

    • IronPython.Wpf

    • Microsoft.Dynamic

    • Microsoft.Scripting

    • Microsoft.Scripting.Metadata


    My paths appear to be well enough set for my purposes as it's not the import of jinja2 itself that causes the error and I am able to import some standard library modules. However, I've seen that the os package fails to import for the same reason as jinja2. I also cannot import errno directly as expected, but I can import it directly if I run it via the python 2.7 cli so the package is installed.



    I'm very much out of ideas here if anyone has any suggestions.










    share|improve this question



























      1












      1








      1


      1






      I am attempting to run a simple python script within my .net application using IronPython. I have installed the nuget package into the project (I have NOT installed the ironpython cli on my machine) and have authored this code to handle setting paths, reading output, and setting input.



      this.engine = Python.CreateEngine();
      this.scope = this.engine.CreateScope();

      this.streamOut = new MemoryStream();
      this.streamErr = new MemoryStream();
      this.engine.Runtime.IO.SetOutput(this.streamOut, Encoding.Default);
      this.engine.Runtime.IO.SetErrorOutput(this.streamErr, Encoding.Default);

      // this is a locally set environment variable
      string pythonRootPath = Environment.GetEnvironmentVariable("PythonPath");
      ICollection<string> searchPaths = engine.GetSearchPaths();
      searchPaths.Add($@"{pythonRootPath}Libsite-packages");
      searchPaths.Add($@"{pythonRootPath}Lib");
      engine.SetSearchPaths(searchPaths);

      this.engine.Execute(@"import jinja2");


      Executing the script results in the following exception



      IronPython.Runtime.Exceptions.ImportException: 'No module named errno'


      My C# project has references to the following relevant (to IronPython) assemblies:




      • IronPython (v2.7.9)

      • IronPython.Modules

      • IronPython.SQLite

      • IronPython.Wpf

      • Microsoft.Dynamic

      • Microsoft.Scripting

      • Microsoft.Scripting.Metadata


      My paths appear to be well enough set for my purposes as it's not the import of jinja2 itself that causes the error and I am able to import some standard library modules. However, I've seen that the os package fails to import for the same reason as jinja2. I also cannot import errno directly as expected, but I can import it directly if I run it via the python 2.7 cli so the package is installed.



      I'm very much out of ideas here if anyone has any suggestions.










      share|improve this question
















      I am attempting to run a simple python script within my .net application using IronPython. I have installed the nuget package into the project (I have NOT installed the ironpython cli on my machine) and have authored this code to handle setting paths, reading output, and setting input.



      this.engine = Python.CreateEngine();
      this.scope = this.engine.CreateScope();

      this.streamOut = new MemoryStream();
      this.streamErr = new MemoryStream();
      this.engine.Runtime.IO.SetOutput(this.streamOut, Encoding.Default);
      this.engine.Runtime.IO.SetErrorOutput(this.streamErr, Encoding.Default);

      // this is a locally set environment variable
      string pythonRootPath = Environment.GetEnvironmentVariable("PythonPath");
      ICollection<string> searchPaths = engine.GetSearchPaths();
      searchPaths.Add($@"{pythonRootPath}Libsite-packages");
      searchPaths.Add($@"{pythonRootPath}Lib");
      engine.SetSearchPaths(searchPaths);

      this.engine.Execute(@"import jinja2");


      Executing the script results in the following exception



      IronPython.Runtime.Exceptions.ImportException: 'No module named errno'


      My C# project has references to the following relevant (to IronPython) assemblies:




      • IronPython (v2.7.9)

      • IronPython.Modules

      • IronPython.SQLite

      • IronPython.Wpf

      • Microsoft.Dynamic

      • Microsoft.Scripting

      • Microsoft.Scripting.Metadata


      My paths appear to be well enough set for my purposes as it's not the import of jinja2 itself that causes the error and I am able to import some standard library modules. However, I've seen that the os package fails to import for the same reason as jinja2. I also cannot import errno directly as expected, but I can import it directly if I run it via the python 2.7 cli so the package is installed.



      I'm very much out of ideas here if anyone has any suggestions.







      c# python .net jinja2 ironpython






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 23 '18 at 23:17







      MichaelCook

















      asked Nov 18 '18 at 1:36









      MichaelCookMichaelCook

      2117




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