Python reads and writes CSV format files in data analysis often need to access data from CSV-formatted files and write data to a CSV file. It is convenient and easy to read the data in the CSV file directly as Dict type and dataframe, and the following code takes the iris data as an example. The CSV file reads as dict code #-*-Coding:utf-8-*-import csvwith open (' e:/iris.csv ') as Csvfile:reader = csv. Dictreader (CSVFile, fieldnames=none) # FieldNames default to None, if the read CSV file does not have a table header, you need to specify List_1 =
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