Missing imports for pyodide

Author: ogrisel

content/python_files/feature_engineering.py

@@ -29,7 +29,8 @@
 # skrub expressions.
 # %%
 # %pip install -q https://pypi.anaconda.org/ogrisel/simple/polars/1.24.0/polars-1.24.0-cp39-abi3-emscripten_3_1_58_wasm32.whl
-# %pip install -q altair holidays https://pypi.anaconda.org/ogrisel/simple/skrub/0.6.dev0/skrub-0.6.dev0-py3-none-any.whl
+# %pip install -q https://pypi.anaconda.org/ogrisel/simple/skrub/0.6.dev0/skrub-0.6.dev0-py3-none-any.whl
+# %pip install -q altair holidays plotly nbformat
 # %%
 # The following 3 imports are only needed to workaround some limitations
 # when using polars in a pyodide/jupyterlite notebook.
@@ -407,9 +408,6 @@ def iqr(col, *, window_size: int):
 prediction_time
 
 # %%
-import polars.selectors as cs
-
-
 @skrub.deferred
 def build_features(
     prediction_time,