Pin xeus-python to a known working version (#129)

Author: martinRenou

jupyterlite_xeus_python/build.py

@@ -27,6 +27,8 @@
 
 PYTHON_VERSION = "3.10"
 
+XEUS_PYTHON_VERSION = "0.15.7"
+
 CHANNELS = [
     "https://repo.mamba.pm/emscripten-forge",
     "https://repo.mamba.pm/conda-forge",
@@ -119,7 +121,7 @@ def _create_config(prefix_path):
 
 def build_and_pack_emscripten_env(
     python_version: str = PYTHON_VERSION,
-    xeus_python_version: str = "",
+    xeus_python_version: str = XEUS_PYTHON_VERSION,
     packages: List[str] = [],
     environment_file: str = "",
     root_prefix: str = "/tmp/xeus-python-kernel",
@@ -253,7 +255,7 @@ def build_and_pack_emscripten_env(
 
 def main(
     python_version: str = PYTHON_VERSION,
-    xeus_python_version: str = "",
+    xeus_python_version: str = XEUS_PYTHON_VERSION,
     packages: List[str] = typer.Option(
         [], help="The list of packages you want to install"
     ),

jupyterlite_xeus_python/env_build_addon.py

@@ -27,7 +27,7 @@
     ENV_EXTENSIONS,
 )
 
-from .build import build_and_pack_emscripten_env
+from .build import XEUS_PYTHON_VERSION, build_and_pack_emscripten_env
 
 JUPYTERLITE_XEUS_PYTHON = "@jupyterlite/xeus-python-kernel"
 
@@ -41,7 +41,7 @@ class XeusPythonEnv(FederatedExtensionAddon):
 
     __all__ = ["post_build"]
 
-    xeus_python_version = Unicode().tag(
+    xeus_python_version = Unicode(XEUS_PYTHON_VERSION).tag(
         config=True, description="The xeus-python version to use"
     )
 
@@ -93,19 +93,19 @@ def post_build(self, manager):
         # We should really find a nicer way.
         # (make jupyterlite-xeus-python extension somewhat configurable?)
         dest = self.output_extensions / "@jupyterlite" / "xeus-python-kernel" / "static"
-        
+
         # copy *.data/*.js for all side packages
         for item in Path(self.cwd.name) .iterdir():
             if item.suffix == ".data":
 
-                file = item.name 
+                file = item.name
                 yield dict(
                     name=f"xeus:copy:{file}",
                     actions=[(self.copy_one, [item, dest / file])],
                 )
 
                 js_item  = Path(self.cwd.name) / (str(item.stem) + '.js')
-                js_file = js_item.name 
+                js_file = js_item.name
                 yield dict(
                     name=f"xeus:copy:{js_file}",
                     actions=[(self.copy_one, [js_item, dest / js_file])],