从GitHub下载CSV文件时出错urllib.request

问题描述

我已经在这个脚本上工作了两个星期，而我刚完成，一切工作都很好。我返回到脚本并尝试运行它，但遇到一个错误，并且知道它的含义以及如何解决它。当我下载一些包含CoronaVirus数据的csv文件时，脚本中很早出现了错误。我正在使用urllib.request来执行此操作，但出现错误

  File "Run.py",line 13,in <module>
    urllib.request.urlretrieve(url,filename="time_series_covid19_recoveredGlobal.csv")
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/urllib/request.py",line 247,in urlretrieve
    with contextlib.closing(urlopen(url,data)) as fp:
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/urllib/request.py",line 222,in urlopen
    return opener.open(url,data,timeout)
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/urllib/request.py",line 525,in open
    response = self._open(req,data)
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/urllib/request.py",line 542,in _open
    result = self._call_chain(self.handle_open,protocol,protocol +
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/urllib/request.py",line 502,in _call_chain
    result = func(*args)
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/urllib/request.py",line 1362,in https_open
    return self.do_open(http.client.HTTPSConnection,req,File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/urllib/request.py",line 1322,in do_open
    raise URLError(err)
urllib.error.URLError: <urlopen error [Errno 8] nodename nor servname provided,or not known>

和另一个

Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/urllib/request.py",line 1319,in do_open
    h.request(req.get_method(),req.selector,req.data,headers,File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/http/client.py",line 1230,in request
    self._send_request(method,url,body,encode_chunked)
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/http/client.py",line 1276,in _send_request
    self.endheaders(body,encode_chunked=encode_chunked)
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/http/client.py",line 1225,in endheaders
    self._send_output(message_body,line 1004,in _send_output
    self.send(msg)
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/http/client.py",line 944,in send
    self.connect()
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/http/client.py",line 1392,in connect
    super().connect()
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/http/client.py",line 915,in connect
    self.sock = self._create_connection(
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/socket.py",line 787,in create_connection
    for res in getaddrinfo(host,port,SOCK_STREAM):
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/socket.py",line 918,in getaddrinfo
    for res in _socket.getaddrinfo(host,family,type,proto,flags):
socket.gaierror: [Errno 8] nodename nor servname provided,or not known

我想知道为什么会这样。这是我所拥有的：

import urllib.request
url = "https://raw.githubuserxxxent.com/CSSEGISandData/COVID-19/master/csse_covid_19_data/csse_covid_19_time_series/time_series_covid19_recovered_global.csv"
urllib.request.urlretrieve(url,filename="time_series_covid19_recoveredGlobal.csv")
url = "https://raw.githubuserxxxent.com/CSSEGISandData/COVID-19/master/csse_covid_19_data/csse_covid_19_time_series/time_series_covid19_confirmed_global.csv"
urllib.request.urlretrieve(url,filename="time_series_covid19_confirmed_global.csv")
url = "https://raw.githubuserxxxent.com/CSSEGISandData/COVID-19/master/csse_covid_19_data/csse_covid_19_time_series/time_series_covid19_deaths_global.csv"
urllib.request.urlretrieve(url,filename="time_series_covid19_deaths_global.csv")

谢谢！

解决方法

您的网址有错别字：

应该将域设为githubuserxxxent.com，而不是githubusercontent.com。

请注意，尝试在浏览器中访问githubuserxxxent.com时会返回Address not found错误。

也许您在代码中进行了查找和替换，这就是发生这种情况的原因。

固定代码：

import urllib.request
url = "https://raw.githubusercontent.com/CSSEGISandData/COVID-19/master/csse_covid_19_data/csse_covid_19_time_series/time_series_covid19_recovered_global.csv"
urllib.request.urlretrieve(url,filename="time_series_covid19_recoveredGlobal.csv")
url = "https://raw.githubusercontent.com/CSSEGISandData/COVID-19/master/csse_covid_19_data/csse_covid_19_time_series/time_series_covid19_confirmed_global.csv"
urllib.request.urlretrieve(url,filename="time_series_covid19_confirmed_global.csv")
url = "https://raw.githubusercontent.com/CSSEGISandData/COVID-19/master/csse_covid_19_data/csse_covid_19_time_series/time_series_covid19_deaths_global.csv"
urllib.request.urlretrieve(url,filename="time_series_covid19_deaths_global.csv")