代码片段库

Read and write CSV files

Read rows as dicts and write a filtered copy with csv.DictWriter.

import csv
import io

source = io.StringIO("name,score\nada,91\nlinus,78\ngrace,88\n")   # use open("in.csv") for a file
rows = [row for row in csv.DictReader(source) if int(row["score"]) >= 80]