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yagwebyagweb
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add a scope class to manage the context of interaction with Python and simplify the variable exchanging
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‎src/embed_tests/Python.EmbeddingTest.csproj

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<?xml version="1.0" encoding="utf-8"?>
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<?xml version="1.0" encoding="utf-8"?>
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<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="4.0">
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<PropertyGroup>
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<Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
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<DebugType>full</DebugType>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)' == 'ReleaseMono'">
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<DefineConstants Condition="'$(DefineConstants)' == ''"></DefineConstants>
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<DefineConstants Condition="'$(DefineConstants)' == ''">
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</DefineConstants>
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<Optimize>true</Optimize>
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<DebugType>pdbonly</DebugType>
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</PropertyGroup>
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<DebugType>full</DebugType>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)' == 'ReleaseWin'">
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<DefineConstants Condition="'$(DefineConstants)' == ''"></DefineConstants>
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<DefineConstants Condition="'$(DefineConstants)' == ''">
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</DefineConstants>
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<Optimize>true</Optimize>
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<DebugType>pdbonly</DebugType>
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</PropertyGroup>
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<DebugType>full</DebugType>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)' == 'ReleaseMonoPY3'">
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<DefineConstants Condition="'$(DefineConstants)' == ''"></DefineConstants>
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<DefineConstants Condition="'$(DefineConstants)' == ''">
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</DefineConstants>
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<Optimize>true</Optimize>
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<DebugType>pdbonly</DebugType>
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</PropertyGroup>
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<DebugType>full</DebugType>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)' == 'ReleaseWinPY3'">
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<DefineConstants Condition="'$(DefineConstants)' == ''"></DefineConstants>
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<DefineConstants Condition="'$(DefineConstants)' == ''">
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</DefineConstants>
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<Optimize>true</Optimize>
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<DebugType>pdbonly</DebugType>
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</PropertyGroup>
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</ItemGroup>
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<ItemGroup>
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<None Include="..\pythonnet.snk" />
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<None Include="packages.config" />
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<None Include="packages.config">
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<SubType>Designer</SubType>
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</None>
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</ItemGroup>
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<ItemGroup>
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<Compile Include="pyinitialize.cs" />
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<Compile Include="pyobject.cs" />
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<Compile Include="pythonexception.cs" />
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<Compile Include="pytuple.cs" />
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<Compile Include="pyscope.cs" />
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</ItemGroup>
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<ItemGroup>
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<ProjectReference Include="..\runtime\Python.Runtime.csproj">
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<Copy SourceFiles="$(TargetAssembly)" DestinationFolder="$(PythonBuildDir)" />
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<Copy SourceFiles="$(TargetAssemblyPdb)" Condition="Exists('$(TargetAssemblyPdb)')" DestinationFolder="$(PythonBuildDir)" />
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</Target>
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</Project>
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</Project>

‎src/embed_tests/pyscope.cs

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using NUnit.Framework;
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using Python.Runtime;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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namespace Python.EmbeddingTest
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{
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[TestFixture]
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public class PyScopeTest
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{
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[SetUp]
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public void SetUp()
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{
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PythonEngine.Initialize();
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}
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[TearDown]
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public void TearDown()
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{
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PythonEngine.Shutdown();
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}
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/// <summary>
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/// Set the attribute of a pyobject to null.
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/// </summary>
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[Test]
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public void Eval()
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{
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using (var ps = Py.Session())
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{
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var result = PyInt.AsInt(ps.Eval("1+2"));
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Assert.AreEqual(result.ToInt32(), 3);
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}
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}
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[Test]
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public void Exec()
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{
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using (var ps = Py.Session())
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{
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ps.SetGlobal("bb", 100);//declare a global variable
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ps.SetLocal("cc", 10);//declare a local variable
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ps.ExecIn("aa=bb+cc+3");
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var result = PyInt.AsInt(ps.Get("aa") as PyObject);
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Assert.AreEqual(result.ToInt32(), 113);
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}
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}
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[Test]
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public void ExecIn()
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{
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using (var ps = Py.Session())
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{
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ps.SetGlobal("bb", 100);//declare a global variable
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ps.SetLocal("cc", 10);//declare a local variable
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ps.ExecIn("aa=bb+cc+3");
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var result = PyInt.AsInt(ps.Get("aa") as PyObject);
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Assert.AreEqual(result.ToInt32(), 113);
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}
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}
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[Test]
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public void Import()
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{
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using (var ps = Py.Session())
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{
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ps.Import("sys"); //import, it will also be added in globals
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ps.Import("io");
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ps.ExecIn("sys.stdout = io.StringIO()"); //it's working!
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ps.ExecIn("print('Hello!')");
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var result = ps.Eval("sys.stdout.getvalue()");
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Assert.AreEqual(result.ToString(), "Hello!\n");
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}
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}
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}
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}

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