無法在 Python 中下載帶有請求的 url 鏈接

Question

目標是從cvit.iiit.ac.in/projects/SceneTextUnderstanding/IIIT5K-Word_V3.0.tar.gz下載tar.gz

使用wget可以毫無問題地下載該文件。

!wget cvit.iiit.ac.in/projects/SceneTextUnderstanding/IIIT5K-Word_V3.0.tar.gz --no-check-certificate

但是，使用requests下載文件

import requests
url='cvit.iiit.ac.in/projects/SceneTextUnderstanding/IIIT5K-Word_V3.0.tar.gz'
r = requests.get(url) 

返回錯誤

MissingSchema                             Traceback (most recent call last)

<ipython-input-11-fa35f2c0ddc0> in <module>()
      1 url='cvit.iiit.ac.in/projects/SceneTextUnderstanding/IIIT5K-Word_V3.0.tar.gz'
----> 2 r = requests.get(url)

5 frames

/usr/local/lib/python3.7/dist-packages/requests/models.py in prepare_url(self, url, params)
    386             error = error.format(to_native_string(url, 'utf8'))
    387 
--> 388             raise MissingSchema(error)
    389 
    390         if not host:

MissingSchema: Invalid URL 'cvit.iiit.ac.in/projects/SceneTextUnderstanding/IIIT5K-Word_V3.0.tar.gz': No schema supplied. Perhaps you meant http://cvit.iiit.ac.in/projects/SceneTextUnderstanding/IIIT5K-Word_V3.0.tar.gz?

我可以知道是什么問題嗎？

Answer 1

您的url變量中缺少 http:// 或 https:// （架構，如錯誤消息所述）。

url = 'https://cvit.iiit.ac.in/projects/SceneTextUnderstanding/IIIT5K-Word_V3.0.tar.gz'

Answer 2

你錯過了 http 標頭

import requests
requests.get("http://cvit.iiit.ac.in/projects/SceneTextUnderstanding/IIIT5K-Word_V3.0.tar.gz")

這也應該有效

import wget
wget.download("http://cvit.iiit.ac.in/projects/SceneTextUnderstanding/IIIT5K-Word_V3.0.tar.gz", out="YOUR_PATH")