Python Crawling & Data Mining
Jan 24, 2025 · Fundamentals
Three Elegant Python Tricks to Sum Columns in a 2D List
This article explains a Python fan's question about summing each column of a two‑dimensional list and presents three concise solutions—including list unpacking with zip, NumPy aggregation, and a functional reduce approach—complete with code snippets and explanations.
Pythonlist sumlist-comprehension
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