Support subinterpreters

python/pycrdt/__init__.py

@@ -41,3 +41,7 @@
 from ._xml import XmlEvent as XmlEvent
 from ._xml import XmlFragment as XmlFragment
 from ._xml import XmlText as XmlText
+
+
+def import_pycrdt():
+    import pycrdt

tests/test_subinterpreters.py

@@ -0,0 +1,11 @@
+import pytest
+
+from anyio import to_interpreter
+
+from pycrdt import import_pycrdt
+
+pytestmark = pytest.mark.anyio
+
+
+async def test_subinterpreter():
+    await to_interpreter.run_sync(import_pycrdt)