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.
Questo esercizio fa parte del corso
Scaling and Optimizing Data Pipelines with Polars
Istruzioni dell'esercizio
- Use the right method on the struct to rename its fields.
- Name them
country_codeandcountry_name, in that order.
esercizio interattivo pratico
Prova questo esercizio completando questo codice di esempio.
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)