标签：ext tail cat writer fileread The run func pen
遇到的提示错误：_csv.Error: new-line character seen in unquoted field - do you need to open the file in universal-newline mode?
错误code如下：
1 import csv 2 import sys 3 4 input_file = sys.argv[1] 5 output_file = sys.argv[2] 6 7 with open(input_file, ‘r‘) as csv_in_file: 8 with open(output_file, ‘w‘) as csv_out_file: 9 filereader = csv.reader(csv_in_file) 10 filewriter = csv.writer(csv_out_file) 11 header = next(filereader) 12 13 #print header 14 15 filewriter.writerow(header) 16 for row_list in filereader: 17 #print row_list 18 supplier = str(row_list[0]).strip() 19 cost = str(row_list[3]).strip("$").replace(‘,‘, ‘‘) 20 if supplier == ‘Supplier X‘ or float(cost)>600.0: 21 filewriter.writerow(row_list)
解决方法：
将上述代码第7行写成 with open(input_file, ‘rU‘) as csv_in_file: 后解决
主要是打开文件的模式不正确。
‘U‘ universal newline mode (deprecated)——在python3中已经弃用
详见：http://www.runoob.com/python/python-func-open.html
https://blog.csdn.net/u010105645/article/details/78808779
标签：ext tail cat writer fileread The run func pen
原文地址：https://www.cnblogs.com/slhs/p/9642178.html
