Changes in Python for Unity

RELEASE NOTES

[2.1.1-preview.1] - 2020-08-04

This is a bugfix release for 2.1.0-preview.1

FIXES

Hides the Python folder from the Asset Database, fixing an issue where Unity complained about missing meta files
Fixed an error launching a Python client when Environment Variables and/or their values would contain non-ASCII characters. These variables are now not forwarded to the python client. This is due to a Python 2 limitation.

[2.1.0-preview.1] - 2020-07-15

NEW FEATURES

Python for .NET updated to version 2.5.1

[2.0.1-preview.2] - 2020-02-13

This is a bugfix release for 2.0.0-preview.

FIXES

Improved handling of a Python installation that can't find its home. Unity now displays an error rather than crashing.
Fixed repeated registration of an OnUpdate callback.
Prevented the Python top-level menu being added by default. Unpack the sample clients manually from the Package Manager instead.
The tilde character (~) in Python path and site-packages is now interpreted as the user home directory on all platforms.
In the Python Console, Ctrl-enter with no selection now executes the entire script (Cmd-enter on macOS).
Fixed the year in 2.0.0-preview.6 release date below. It's already 2020 apparently.

[2.0.0-preview.6] - 2020-01-08

This is the first public release of Python for Unity.

SECURITY FIX

Earlier versions opened an internet socket that could let anyone connect. This has been replaced with a Unix domain socket, so file permissions are used. As a side effect, out-of-process performance is much faster.

[2.0.0-preview.3] - 2019-10-25

BREAKING CHANGE

The out-of-process API has been entirely rewritten. The new API supports multiple clients, and asynchronous calls. Clients written to the previous API will need to be updated.

NEW FEATURES

Python Console; find it in [menu]
Python for .NET updated to version 2.4.0

[1.3.2-preview] - 2019-06-10

FIXES

Fixed Python initialization problem on OSX

RELEASE NOTES

[1.3.0-preview] - 2019-04-24

NEW FEATURES

Updated documentation
Add Python project settings in Unity
Improved support for installing on Mac and Linux
Improved logging to help troubleshooting
Include RPyC and dependencies in Package
Add option to use different Python on client

[1.2.0-preview] - 2019-03-13

NEW FEATURES

Automatically adding Python/site-packages to the PYTHONPATH for the current project and the Python packages
Added ability to log the Python client messages into a file
More robust reconnection on domain reload

[1.1.4-preview] - 2018-12-21

NEW FEATURES

Added a sample: PySideExample
Added documentation for In-Process and Out-of-Process APIs
Better exception logging on the client when an exception is raised on init
Better error messages when the Python installation is not valid
RPyC client now automatically starts on server start

[1.1.3-preview] - 2018-12-14

NEW FEATURES

This version provides tidier assemblies and APIs

[1.1.2-preview] - 2018-12-07

NEW FEATURES

Added a Python example using the RPyC architecture and PySide in the client process
The RPyC client process now terminates when Unity exits
The RPyC client can now be stopped and restarted
Better logging of Python exceptions in the Unity console
Improved error message when the Python interpreter is not properly configured
Added a Python/Debug menu that allows to
- Start the RPyC server
- Stop the RPyC server
- Start the RPyC client
- Start the RPyC server and the client

[1.1.1-preview] - 2018-11-26

NEW FEATURES

Added methods to PythonRunner for
- Running Python on the RPyC client
- Starting and stopping the RPyC server
- Preventing .pyc files from being generated

FIXES

Fixed deadlocks when closing the RPyC server and client

[1.1.0-preview] - 2018-11-13

NEW FEATURES

Added RPyC architecture (under Python/site-packages/unity_rpyc)
Updated Python for .NET to include:
- A fix to a crash when finalizing the Python interpreter on domain unload
- A C# callback on Python for .NET shutdown

KNOWN ISSUES

There might be scenarios that still crash/hang Unity when running Python after reloading assemblies.
- If your tools are affected by domain reload, consider using the RPyC architecture. Refer to the documentation for an example on how to use the RPyC architecture.

[1.0.0] - 2018-10-05

NEW FEATURES

added Python support in Unity for Windows and Mac

[All Versions]

Trying to call UnityEngine.Debug.Log (or its variants) with a python string that contains non-ANSI characters, will cause the following error: Python.Runtime.PythonException: TypeError : No method matches given arguments for Log. For example this can happen on a French language version of Windows when a socket connection fails with error: [Errno 10061] Aucune connexion n’a pu être établie car l’ordinateur cible l’a expressément refusée.