写入 CSV：“UnicodeDecodeError：‘charmap’编解码器无法解码字节

Question

我试图将一个大的 csv 文件拆分成多个文件，为此我使用了这个代码片段。我正在使用 Python 3.7.7 并且在 Windows 操作系统上。我尝试添加 utf8 编码，但它仍然不起作用。你知道为什么吗？

这是我的代码：

import os

def split(filehandler, delimiter=',', row_limit=125000, output_name_template='jokes_%s.csv', output_path='.', keep_headers=True):

    """

    Splits a CSV file into multiple pieces.

    A quick bastardization of the Python CSV library.

    Arguments:

        `row_limit`: The number of rows you want in each output file. 10,000 by default.

        `output_name_template`: A %s-style template for the numbered output files.

        `output_path`: Where to stick the output files.

        `keep_headers`: Whether or not to print the headers in each output file.

    Example usage:

        >> from toolbox import csv_splitter;

        >> csv_splitter.split(open('/home/ben/input.csv', 'r'));

    """

    import csv

    reader = csv.reader(filehandler,  delimiter=delimiter)

    current_piece = 1

    current_out_path = os.path.join(

         output_path,

         output_name_template  % current_piece

    )

    print(current_out_path)

    current_out_writer = csv.writer(open(current_out_path, 'w', encoding='utf8', newline=''), delimiter=delimiter)

    current_limit = row_limit

    if keep_headers:

        headers = next(reader)

        current_out_writer.writerow(headers)

    for i, row in enumerate(reader):

        if i + 1 > current_limit:

            current_piece += 1

            current_limit = row_limit * current_piece

            current_out_path = os.path.join(

               output_path,

               output_name_template  % current_piece

            )

            print(current_out_path)

            current_out_writer = csv.writer(open(current_out_path, 'w', encoding='utf8', newline=''), delimiter=delimiter)

            if keep_headers:

                current_out_writer.writerow(headers)

        current_out_writer.writerow(row)

split(open('jokes.csv', 'r'))

Answer 1

split(open('jokes.csv', 'r'))你可以换个split(open('jokes.csv', 'r', encoding="utf8"))试试。