From b26f72fce2007947221a8d8bf4e57f48ead4cdea Mon Sep 17 00:00:00 2001 From: Ned Batchelder Date: Fri, 3 May 2024 11:48:27 -0400 Subject: [PATCH] docs: clarify csv.DictReader's treatment of the first data row (GH-118549) (cherry picked from commit 9d67b72a4952766fdba803eb6eadd41dfee29dff) Co-authored-by: Ned Batchelder --- Doc/library/csv.rst | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/Doc/library/csv.rst b/Doc/library/csv.rst index 4ee7820585d3a2..d17468023c6de1 100644 --- a/Doc/library/csv.rst +++ b/Doc/library/csv.rst @@ -156,8 +156,10 @@ The :mod:`csv` module defines the following classes: The *fieldnames* parameter is a :term:`sequence`. If *fieldnames* is omitted, the values in the first row of file *f* will be used as the - fieldnames. Regardless of how the fieldnames are determined, the - dictionary preserves their original ordering. + fieldnames and will be omitted from the results. If + *fieldnames* is provided, they will be used and the first row will be + included in the results. Regardless of how the fieldnames are determined, + the dictionary preserves their original ordering. If a row has more fields than fieldnames, the remaining data is put in a list and stored with the fieldname specified by *restkey* (which defaults