Adding host information

You want to enrich your listings with host details. A hosts DataFrame contains host names and cities, linked by a shared host_id column. Join these DataFrames to see which host manages each property.

polars is loaded as pl, and the DataFrames hotels and hosts are available for you.

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Data Transformation with Polars

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练习说明

Join hotels with hosts on host_id to keep only matching rows.
Print a few rows to check the join worked.

交互式实操练习

通过完成这段示例代码来试试这个练习。

# Join hotels with hosts on host_id
enriched = hotels.____(hosts, on="____", how="____")

# Print a few rows
print(enriched.____())

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