Flow.Launcher/Flow.Launcher.Core/Plugin/PythonPluginV2.cs

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.IO.Pipelines;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Input;
using Flow.Launcher.Core.Plugin.JsonRPCV2Models;
using Flow.Launcher.Infrastructure;
using Flow.Launcher.Plugin;
using Microsoft.VisualStudio.Threading;
using Nerdbank.Streams;
using StreamJsonRpc;

namespace Flow.Launcher.Core.Plugin
{
    internal sealed class PythonPluginV2 : ProcessStreamPluginV2
    {
        public override string SupportedLanguage { get; set; } = AllowedLanguage.Python;
        protected override ProcessStartInfo StartInfo { get; set; }
        
        public PythonPluginV2(string filename)
        {
            StartInfo = new ProcessStartInfo
            {
                FileName = filename,
                UseShellExecute = false,
                CreateNoWindow = true,
                RedirectStandardOutput = true,
                RedirectStandardError = true,
                RedirectStandardInput = true
            };

            var path = Path.Combine(Constant.ProgramDirectory, JsonRpc);
            StartInfo.EnvironmentVariables["PYTHONPATH"] = path;

            //Add -B flag to tell python don't write .py[co] files. Because .pyc contains location infos which will prevent python portable
            StartInfo.ArgumentList.Add("-B");
        }
    }
}