renaming-columns

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BW #132: JetBrains survey (solutions)

BW #132: JetBrains survey (solutions)

Get better at: CSV files, PyArrow, reducing memory usage, working with dates and times, pivot tables, and plotting.

Aug 21, 2025 10 min read paid Featured

BW #132: JetBrains survey

BW #132: JetBrains survey

Get better at: CSV files, PyArrow, reducing memory usage, working with dates and times, pivot tables, and plotting.

Aug 20, 2025 2 min read paid Featured

BW #88: Hot summers (solution)

BW #88: Hot summers (solution)

Get better at: Excel files, multi-indexes, renaming columns, grouping, and plotting.

Oct 17, 2024 11 min read paid

BW #88: Hot summers

BW #88: Hot summers

Get better at: Excel files, multi-indexes, renaming columns, grouping, and plotting.

Oct 16, 2024 2 min read paid