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DOC: Clarify broadcasting behavior when using lists in DataFrame arithmetic (GH18857) #61820

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  • Clarifies the behavior when using Python lists in arithmetic operations with DataFrames.
  • Adds an example in dsintro.rst to show how adding a list returns a Series of arrays.
  • Adds a note in basics.rst to explain that lists are not broadcasted element-wise, unlike NumPy arrays or Series.
  • Fixes GH18857.

@Shashwat1001 Shashwat1001 marked this pull request as draft July 9, 2025 18:26
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