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run python script in VB.net

Posted on 2011-02-24
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I need to run a python script in VB.net.  The script itself works perfectly but will not run when I try to do it withing VB.net.  I get the error "The specified executable is not a valid application for this OS platform."
Label2.Text = String.Empty

        If FolderBrowserDialog1.ShowDialog = DialogResult.OK Then
            Dim p As Process = New Process

            txtSD.Text = FolderBrowserDialog1.SelectedPath
            p.StartInfo.FileName = "WinCombineLogs.py" 'set path of current antivirus product.
            p.StartInfo.Arguments = " -d " + DateTimePicker1.Text + " -f " + txtSD.Text 'set arguments of current antivirus product.

            p.StartInfo.UseShellExecute = False 'required for redirect.
            p.StartInfo.WindowStyle = ProcessWindowStyle.Hidden 'don't show commandprompt.
            p.StartInfo.CreateNoWindow = True
            p.StartInfo.RedirectStandardOutput = True 'captures output from commandprompt.
            p.Start()
            p.WaitForExit()
        End If
    End Sub

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Question by:NevSoFly
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Hairbrush earned 2000 total points
ID: 34978516
When you run the WinCombileLogs.py file from your command line, Windows will look in your registry to find out what program is associated with the ".py" file extension, and will then pass the filename as a parameter to that program.

Your code tries to call WinCombineLogs.py as if it was a program directly executable by Windows, but that isn't the case.  What you'd need to do is set StartInfo.FileName to the filename of your Python script interpreter, and pass "WinCombineLogs.py" as the first argument.
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Author Comment

by:NevSoFly
ID: 34980794
where would I find the interpreter for Win XP or Win 7?
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Expert Comment

by:Hairbrush
ID: 34981384
As you said that "the script itself works perfectly" I presume you already have the software installed on your PC.  Try looking for C:\Program Files\Python\python.exe

(http://docs.python.org/faq/windows.html#how-do-i-make-python-scripts-executable)
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Author Closing Comment

by:NevSoFly
ID: 35010780
thank you
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