python - 如何删除链接的开头并在python中添加正斜杠

Question

我有一些网络链接是从网站上抓取的，问题是这些链接并不完全正确，因为除非我进行两次更改，否则它们不会自动下载数据:

1) 我在开始时去掉了 VM300:1

2) 我在 .au

之后放了一个 /

有没有办法自动执行此操作？我有大约一千个链接，因此最好不要手动执行此操作。

下面是我的 url 的示例

urls = [
    "VM300:1 https://www.powerwater.com.au__data/assets/excel_doc/0011/172775/Market_Information_System_Control_daily_trading_day_190130.xlsx",
    "VM300:1 https://www.powerwater.com.au__data/assets/excel_doc/0004/172732/Market_Information_System_Control_daily_trading_day_190129.xlsx",
    "VM300:1 https://www.powerwater.com.au__data/assets/excel_doc/0010/172675/Market_Information_System_Control_daily_trading_day_190128.xlsx",
    "VM300:1 https://www.powerwater.com.au__data/assets/excel_doc/0009/172674/Market_Information_System_Control_daily_trading_day_190127.xlsx",
    "VM300:1 https://www.powerwater.com.au__data/assets/excel_doc/0008/172673/Market_Information_System_Control_daily_trading_day_190126.xlsx",
    "VM300:1 https://www.powerwater.com.au__data/assets/excel_doc/0007/172672/Market_Information_System_Control_daily_trading_day_190125.xlsx",
    "VM300:1 https://www.powerwater.com.au__data/assets/excel_doc/0011/172595/Market_Information_System_Control_daily_trading_day_190124.xlsx"
]

编辑1

from pathlib import Path

import requests

urls = [
    "VM300:1 https://www.powerwater.com.au__data/assets/excel_doc/0011/172775/Market_Information_System_Control_daily_trading_day_190130.xlsx",
    "VM300:1 https://www.powerwater.com.au__data/assets/excel_doc/0004/172732/Market_Information_System_Control_daily_trading_day_190129.xlsx",
    "VM300:1 https://www.powerwater.com.au__data/assets/excel_doc/0010/172675/Market_Information_System_Control_daily_trading_day_190128.xlsx",
    "VM300:1 https://www.powerwater.com.au__data/assets/excel_doc/0009/172674/Market_Information_System_Control_daily_trading_day_190127.xlsx",
    "VM300:1 https://www.powerwater.com.au__data/assets/excel_doc/0008/172673/Market_Information_System_Control_daily_trading_day_190126.xlsx",
    "VM300:1 https://www.powerwater.com.au__data/assets/excel_doc/0007/172672/Market_Information_System_Control_daily_trading_day_190125.xlsx",
    "VM300:1 https://www.powerwater.com.au__data/assets/excel_doc/0011/172595/Market_Information_System_Control_daily_trading_day_190124.xlsx"
]

urls = [x.replace('VM300:1 ','').replace('.au__', '.au/__') for x in urls]


for url in urls:
    r = requests.get(urls)
    with open(Path(urls).name, 'wb') as f:
        f.write(r.content)

错误:

Traceback (most recent call last):
  File "C:/Users/george/Desktop/NT/stack NT.py", line 19, in <module>
    r = requests.get(urls)
  File "C:\Python27\lib\site-packages\requests\api.py", line 75, in get
    return request('get', url, params=params, **kwargs)
  File "C:\Python27\lib\site-packages\requests\api.py", line 60, in request
    return session.request(method=method, url=url, **kwargs)
  File "C:\Python27\lib\site-packages\requests\sessions.py", line 533, in request
    resp = self.send(prep, **send_kwargs)
  File "C:\Python27\lib\site-packages\requests\sessions.py", line 640, in send
    adapter = self.get_adapter(url=request.url)
  File "C:\Python27\lib\site-packages\requests\sessions.py", line 731, in get_adapter
    raise InvalidSchema("No connection adapters were found for '%s'" % url)
InvalidSchema: No connection adapters were found for '['https://www.powerwater.com.au/__data/assets/excel_doc/0011/172775/Market_Information_System_Control_daily_trading_day_190130.xlsx', 'https://www.powerwater.com.au/__data/assets/excel_doc/0004/172732/Market_Information_System_Control_daily_trading_day_190129.xlsx', 'https://www.powerwater.com.au/__data/assets/excel_doc/0010/172675/Market_Information_System_Control_daily_trading_day_190128.xlsx', 'https://www.powerwater.com.au/__data/assets/excel_doc/0009/172674/Market_Information_System_Control_daily_trading_day_190127.xlsx', 'https://www.powerwater.com.au/__data/assets/excel_doc/0008/172673/Market_Information_System_Control_daily_trading_day_190126.xlsx', 'https://www.powerwater.com.au/__data/assets/excel_doc/0007/172672/Market_Information_System_Control_daily_trading_day_190125.xlsx', 'https://www.powerwater.com.au/__data/assets/excel_doc/0011/172595/Market_Information_System_Control_daily_trading_day_190124.xlsx']'

谢谢

Answer 1

通过 split 和 replace 使用列表理解:

urls = [x.split()[1].replace('.au__', '.au/__') for x in urls]

另一个双 replace 的想法:

urls = [x.replace('VM300:1 ','').replace('.au__', '.au/__') for x in urls]