csv.reader在字段名中返回“OrderedDict”值

我正在编写一个脚本,负责从.csv文件中读取一些值,然后将它们写入另一个.csv文件。

header = ["Title", "Authors", "Year", "Abstract", "Keywords"]

fields_number = int(input("Enter the number of fields you want to get: "))

field_names = list()
field_values = list()
for i in range(0, fields_number):
    field_name = input("Enter the field name: ")
    field_names.append(field_name)

try:
    with open(filename) as csvfile:
        rowsreader = csv.DictReader(csvfile)
        for row in rowsreader:
            print(row)
            json_row = '{'
            for i in range(0, len(field_names)):
                field = field_names[i]
                json_row += '"{}":"{}"'.format(header[i], row[field])
                json_row += ',' if (i < len(field_names) - 1) else '}'
            field_values.append(json.loads(json_row))
except IOError:
    print("Could not open csv file: {}.".format(filename))

我得到以下输出:

 Traceback (most recent call last):
  File "slr_helper.py", line 58, in <module>
    main()
  File "slr_helper.py", line 37, in main
    json_row += '"{}":"{}"'.format(header[i], row[field])
KeyError: 'Authors'

Authors,Author Ids,Title,Year,Source title,Volume,Issue,Art. No.,Page start,Page end,Page count,Cited by,DOI,Link,Abstract,Author Keywords,Index Keywords,Sponsors,Publisher,Conference name,Conference date,Conference location,Conference code,Document Type,Access Type,Source,EID
"AlHogail A., AlShahrani M.","51060982200;57202888364;","Building consumer trust to improve Internet of Things (IoT) technology adoption",2019,

但在读取csv文件时,代码会打印以下内容:

OrderedDict([('\ufeffAuthors', 'AlHogail A., AlShahrani M.'), ('Author Ids', '51060982200;57202888364;'),...

我想知道如何避免这种情况 OrderedDict([('\ufeff ,因为它导致了我得到的错误。