使用python请求模块下载csv中列出的PDF链接[关闭]

Question

使用 python 请求模块下载 csv 中列出的 1000 个 PDF 链接。

Answer 1

我建议您使用Requests，然后您可以按照以下方式进行操作：

import os
import csv
import requests

write_path = 'folder_name'  # ASSUMING THAT FOLDER EXISTS!

with open('x.csv', 'r') as csvfile:
    spamreader = csv.reader(csvfile)
    for link in spamreader:
        print('-'*72)
        pdf_file = link[0].split('/')[-1]
        with open(os.path.join(write_path, pdf_file), 'wb') as pdf:
            try:
                # Try to request PDF from URL
                print('TRYING {}...'.format(link[0]))
                a = requests.get(link[0], stream=True)
                for block in a.iter_content(512):
                    if not block:
                        break

                    pdf.write(block)
                print('OK.')
            except requests.exceptions.RequestException as e:  # This will catch ONLY Requests exceptions
                print('REQUESTS ERROR:')
                print(e)  # This should tell you more details about the error

x.csv的测试内容为：

https://www.pabanker.com/media/3228/qtr1pabanker_final-web.pdf
http://www.pdf995.com/samples/pdf.pdf
https://tcd.blackboard.com/webapps/dur-browserCheck-BBLEARN/samples/sample.pdf
http://unec.edu.az/application/uploads/2014/12/pdf-sample.pdf

样本输出：

$ python test.py
------------------------------------------------------------------------
TRYING https://www.pabanker.com/media/3228/qtr1pabanker_final-web.pdf...
REQUESTS ERROR:
("Connection broken: ConnectionResetError(54, 'Connection reset by peer')", ConnectionResetError(54, 'Connection reset by peer'))
------------------------------------------------------------------------
TRYING http://www.pdf995.com/samples/pdf.pdf...
OK.
------------------------------------------------------------------------
TRYING https://tcd.blackboard.com/webapps/dur-browserCheck-BBLEARN/samples/sample.pdf...
OK.
------------------------------------------------------------------------
TRYING http://unec.edu.az/application/uploads/2014/12/pdf-sample.pdf...
OK.