codemaker2015 / unity-python-demo

A demo program to illustrate python code usage in unity

Use Python with Unity

First you will have to download IronPython dll files and place them into Assets/Plugins directory. unity-python

IronPython requires .NET 4.5, and Unity doesn't like this by default. That's why you will have to change the .NET version by going to Edit --> Project Settings --> Player. Make sure that the Scripting Runtime Version is .NET 4.x (this requires you to restart Unity) and that API Compatibility level is .NET 4.x

Requirements

• Unity 2018.2.20f1
• Unity Python

How to code in Python

Assume you have a small code snippet test.py in Python like this:

import random

class Test():
	def __init__(self, name):
		self.name = name

	def display(self):
		return "Hi, " + self.name

	def random_number(self, start, end):
		return random.randint(start, end)

You can use it from C# like this

var engine = Python.CreateEngine ();
ICollection<string> searchPaths = engine.GetSearchPaths ();

//Path to the folder of greeter.py
searchPaths.Add (Application.dataPath);

//Path to the Python standard library
searchPaths.Add (Application.dataPath + @"\StreamingAssets"  + @"\Lib\");
engine.SetSearchPaths (searchPaths);

dynamic py = engine.ExecuteFile (Application.dataPath + @"\StreamingAssets" + @"\Python\test.py");

dynamic test = py.Test ("Codemaker");
greeting.text = "Greeting: " + test.display ();
randomNumber.text = "Random Number: " + test.random_number (1, 5);

Output

unity-python-demo's Issues

ImportException: No module named _______

Hello,

Your method works very well to use Python in Unity. But since my python script requires several module imports, I get an ImportException when I hit Play on Unity. For example:
ImportException: No module named serial
Microsoft.Scripting.Runtime.LightExceptions.ThrowException (Microsoft.Scripting.Runtime.LightExceptions+LightException lightEx) (at :0)
Microsoft.Scripting.Runtime.LightExceptions.CheckAndThrow (System.Object value) (at :0)
Microsoft.Scripting.Interpreter.FuncCallInstruction2[T0,TRet].Run (Microsoft.Scripting.Interpreter.InterpretedFrame frame) (at <bdde1939ff4d4d6b828ba549cdd24694>:0) Microsoft.Scripting.Interpreter.Interpreter.Run (Microsoft.Scripting.Interpreter.InterpretedFrame frame) (at <bdde1939ff4d4d6b828ba549cdd24694>:0) Microsoft.Scripting.Interpreter.LightLambda.Run2[T0,T1,TRet] (T0 arg0, T1 arg1) (at <bdde1939ff4d4d6b828ba549cdd24694>:0) IronPython.Compiler.PythonCallTargets.OriginalCallTarget1 (IronPython.Runtime.PythonFunction function, System.Object arg0) (at <0569a20e5dd94f74a766cc11c6214b7c>:0) IronPython.Runtime.FunctionCaller1[T0].Call1 (System.Runtime.CompilerServices.CallSite site, IronPython.Runtime.CodeContext context, System.Object func, T0 arg0) (at <0569a20e5dd94f74a766cc11c6214b

Any ideas?

Thanks.

UnauthorisedAccessException on Android

Thank you for sharing this package. it works well on editor. but when i built it for android and run application in android device it gives.
"UnauthorisedAccessException: Access to path "/" is denied."

it is strange because file is present at this path and i can read the file via read all text. but it gives me error when i pass the same file path to "ExecuteFile()"

Thanks