csv file 処理

通常は，素直にPandasを使いましょう．

CSV file read

#   Enumerate all csv file in current dir and read them
#   by using csv

import os
import csv

print('start')

for csv_filename in os.listdir('.'):

    if not csv_filename.endswith('.csv'):
        continue

    print('file is',csv_filename)

    f = open(csv_filename)
    reader_obj = csv.reader(f)

    for row in reader_obj:
        print(reader_obj.line_num,':',row)
    f.close()