Renaming country fields

The struct fields code and name are too generic for reports. Rename them to country_code and country_name first, then unnest.

You're still working with the same movies DataFrame.

Deze oefening maakt deel uit van de cursus

Scaling and Optimizing Data Pipelines with Polars

Bekijk cursus

Oefeninstructies

Use the right method on the struct to rename its fields.
Name them country_code and country_name, in that order.

Interactieve oefening met praktijkervaring

Probeer deze oefening door deze voorbeeldcode aan te vullen.

result = (
    movies
    .with_columns(
        # Rename the two struct fields
        pl.col("production_country")
        .struct.____(["____", "____"])
        .alias("production_country")
    )
    .unnest("production_country")
    .select("movie_title", "country_code", "country_name")
    .head(8)
)
print(result)

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