在不同的文件夹中打开文本文件并写入csv单元格

Question

我试图从不同的文件夹中获取文本，并以CSV格式将每个文本写入一个带有文件名(*.txt)的单元格中。

import os
folders = os.listdir("/Users/hilo/Documents/digitization/ReleasedDataset_mp3")
folders

import  glob, csv

在这里，我试图获取文件夹名称的列表，它们如下：

['Becton Dickinson_20170803',
 'CIGNA Corp._20170202',
 'The Bank of New York Mellon Corp._20170720',
 'JPMorgan Chase & Co._20170714']

在这里，我尝试应用一个循环来打开和提取每个*txt文件中的所有文本，并使用( *)键将所有文本写入csv文件中的一个单元格中。

for i in folders:
    files=glob.glob("/Users/hilo/Documents/digitization/ReleasedDataset_mp3/i/*.txt")
with open('writeData.csv', mode='w') as new_file:
  writer = csv.writer(new_file, delimiter=',', quotechar='"', quoting=csv.QUOTE_MINIMAL)
  for filename in files:

    # Take all sentences from a given file
    file = open(filename, 'rt')
    text = file.read()
    file.close()

    for text in text:
      writer.writerow((filename, text))

这会产生一个空的CSV。有没有人建议解决代码中的问题？

Answer 1

根据你在评论中提供的补充资料，我认为这是可行的：

import csv
import glob
import os
from pprint import pprint, pp


#root_folder = "/Users/hilo/Documents/digitization/ReleasedDataset_mp3"
root_folder = "/Stack Overflow/_test_files_root"

#folders = ['Becton Dickinson_20170803',
#           'CIGNA Corp._20170202',
#           'The Bank of New York Mellon Corp._20170720',
#           'JPMorgan Chase & Co._20170714']
folders = ['Subfolder1', 'Subfolder3']

filepaths = []
for subfolder in folders:
    filepaths.extend(glob.glob(os.path.join(root_folder, subfolder, "*.txt")))

if os.name == 'nt':  # Improve readability on Windows (optional)
    filepaths[:] = [filepath.replace('\\', '/') for filepath in filepaths]
pprint(filepaths, width=128)  # Show files to be processed (optional)

# Process the files.
with open('writeData.csv', mode='w', newline='') as new_file:
    writer = csv.writer(new_file, delimiter=',', quotechar='"', quoting=csv.QUOTE_MINIMAL)
    for filename in filepaths:
        # Take all sentences from a given file.
        with open(filename, 'rt') as file:
            text = file.read()
        # Write them into CSV along with filename.
        writer.writerow((filename, text))

print('-FINI-')

在Excel中创建的文件如下所示：

(我使用了各种在线新闻文章的文本进行测试。)

​

​

Answer 2

您错过了第2行的字符串插补。

应该是files=glob.glob(f"/Users/hilo/Documents/digitization/ReleasedDataset_mp3/{i}/*.txt")

现在，它将替换循环中的i值，而不是将其解释为文字值。