static void PrintHelloWorldFromPython()
{
PythonRunner.RunString(@"
import UnityEngine;
UnityEngine.Debug.Log('hello console')
");
}
public void TestUndoRedirectStdout()
{
// open python console
PythonConsoleWindow.ShowWindow();
var prevContents = PythonConsoleWindow.s_window.m_outputContents;
PythonConsoleWindow.s_window.m_outputContents = "";
var msg = "hello world";
var pythonCmd = string.Format("print ('{0}')", msg);
PythonRunner.RunString(pythonCmd);
var output = PythonConsoleWindow.s_window.m_outputContents;
Assert.That(output, Is.EqualTo(msg + "\n"));
PythonRunner.UndoRedirectStdout();
PythonConsoleWindow.s_window.m_outputContents = "";
// stdout should no longer be redirected
PythonRunner.RunString(pythonCmd);
output = PythonConsoleWindow.s_window.m_outputContents;
Assert.That(output, Is.Null.Or.Empty);
PythonConsoleWindow.s_window.m_outputContents = prevContents;
PythonConsoleWindow.s_window.Close();
// redo stdout redirection
PythonRunner.RedirectStdout();
}
static void OnHierarchyChanged()
{
// This is the simplest way to call Python code.
PythonRunner.RunString(@"
import PySideExample
PySideExample.update_camera_list()
");
}
// Helper for TestProjectAssemblyReferencesAdded.
// Tries to import System and run a command with PythonRunner.RunString().
// Called once before and after domain reload.
private void TestImportSystemHelper()
{
var importSystem = "import System;System.IO.File.Exists('test.txt')";
PythonRunner.RunString(importSystem);
// System has an extra m, so this should throw an exception
var importSystemInvalid = "import Systemm;System.IO.File.Exists('test.txt')";
Assert.Throws <PythonException>(() =>
{
PythonRunner.RunString(importSystemInvalid);
});
}
static void CreateOrReinitialize()
{
// You can manually add the sample directory to your sys.path in
// the Python Settings under site-packages. Or you can do it
// programmatically like so.
string dir = __DIR__();
PythonRunner.EnsureInitialized();
using (Py.GIL())
{
dynamic sys = PythonEngine.ImportModule("sys");
if ((int)sys.path.count(dir) == 0)
{
sys.path.append(dir);
}
}
// Now that we've set up the path correctly, we can import the
// Python side of this example as a module:
PythonRunner.RunString(@"
import PySideExample
PySideExample.create_or_reinitialize()
");
// We can't register events in Python directly, so register them
// here in C#:
EditorApplication.hierarchyChanged += OnHierarchyChanged;
EditorApplication.update += OnUpdate;
//
// A domain reload happens when you change C# code or when you
// launch into play mode (unless you selected the option not to
// reload then).
//
// When it happens, your C# state is entirely reinitialized. The
// Python state, however, remains as it was.
//
// To store information about what happened in the previous domain,
// Unity provides the SessionState. Alternately we could have
// stored the data in a variable in Python.
//
SessionState.SetBool(kStateName, true);
}
public void TestRunString()
{
// check with null and empty string
PythonRunner.RunString(null);
PythonRunner.RunString("");
// Something valid
string goName = "Bob";
PythonRunner.RunString($"import UnityEngine;obj = UnityEngine.GameObject();obj.name = '{goName}'");
var obj = GameObject.Find(goName);
Assert.That(obj, Is.Not.Null);
// Same code, with obvious error
Assert.Throws <PythonException>(() =>
{
PythonRunner.RunString($"import UnityEngineobj = UnityEngine.GameObject();obj.name = '{goName}'");
});
// Testing scopeName parameter
string scopeName = "__main__";
UnityEngine.TestTools.LogAssert.Expect(LogType.Log, scopeName);
PythonRunner.RunString("import UnityEngine; UnityEngine.Debug.Log(__name__)", scopeName);
scopeName = "unity_python";
UnityEngine.TestTools.LogAssert.Expect(LogType.Log, scopeName);
PythonRunner.RunString("import UnityEngine; UnityEngine.Debug.Log(__name__)", scopeName);
// No NameError with list comprehension when setting __name__
scopeName = "__main__";
UnityEngine.TestTools.LogAssert.Expect(LogType.Log, scopeName);
PythonRunner.RunString("import UnityEngine;items=[1,2,3];[x for x in items if isinstance(x, UnityEngine.GameObject)];UnityEngine.Debug.Log(__name__)",
scopeName);
}