From d101e3390b595643145e6aa1c7804e865e73cd15 Mon Sep 17 00:00:00 2001
From: Almar Klein <almar@almarklein.org>
Date: Mon, 9 Dec 2024 14:36:56 +0100
Subject: [PATCH] Allow get_context before a backend is selected

---
 wgpu/__init__.py | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/wgpu/__init__.py b/wgpu/__init__.py
index 3fad8cce..68c166a3 100644
--- a/wgpu/__init__.py
+++ b/wgpu/__init__.py
@@ -24,7 +24,9 @@ def rendercanvas_context_hook(canvas, present_methods):
 
     backend_module = gpu.__module__
     if backend_module in ("", "wgpu._classes"):
-        raise RuntimeError(
-            "A backend must be selected (e.g. with wgpu.gpu.request_adapter()) before canvas.get_context() can be called."
-        )
+        # Load backend now
+        from .backends import auto
+
+        backend_module = gpu.__module__
+
     return sys.modules[backend_module].GPUCanvasContext(canvas, present_methods)