pip install xlrd

出错

 eta 0:00:06ERROR: Exception:

Traceback (most recent call last):

  File "c:\program files\python\lib\site-packages\pip\_vendor\urllib3\response.p

y", line 425, in _error_catcher

    yield

  File "c:\program files\python\lib\site-packages\pip\_vendor\urllib3\response.p

y", line 507, in read

    data = self._fp.read(amt) if not fp_closed else b""

  File "c:\program files\python\lib\site-packages\pip\_vendor\cachecontrol\filew

rapper.py", line 62, in read

    data = self.__fp.read(amt)

  File "c:\program files\python\lib\http\client.py", line 449, in read

    n = self.readinto(b)

  File "c:\program files\python\lib\http\client.py", line 493, in readinto

    n = self.fp.readinto(b)

  File "c:\program files\python\lib\socket.py", line 586, in readinto

    return self._sock.recv_into(b)

  File "c:\program files\python\lib\ssl.py", line 1009, in recv_into

    return self.read(nbytes, buffer)

  File "c:\program files\python\lib\ssl.py", line 871, in read

    return self._sslobj.read(len, buffer)

  File "c:\program files\python\lib\ssl.py", line 631, in read

    v = self._sslobj.read(len, buffer)

socket.timeout: The read operation timed out

During handling of the above exception, another exception occurred:

Traceback (most recent call last):

  File "c:\program files\python\lib\site-packages\pip\_internal\cli\base_command

.py", line 186, in _main

    status = self.run(options, args)

  File "c:\program files\python\lib\site-packages\pip\_internal\commands\install

.py", line 331, in run

    resolver.resolve(requirement_set)

  File "c:\program files\python\lib\site-packages\pip\_internal\legacy_resolve.p

y", line 177, in resolve

    discovered_reqs.extend(self._resolve_one(requirement_set, req))

  File "c:\program files\python\lib\site-packages\pip\_internal\legacy_resolve.p

y", line 333, in _resolve_one

    abstract_dist = self._get_abstract_dist_for(req_to_install)

  File "c:\program files\python\lib\site-packages\pip\_internal\legacy_resolve.p

y", line 282, in _get_abstract_dist_for

    abstract_dist = self.preparer.prepare_linked_requirement(req)

  File "c:\program files\python\lib\site-packages\pip\_internal\operations\prepa

re.py", line 482, in prepare_linked_requirement

    hashes=hashes,

  File "c:\program files\python\lib\site-packages\pip\_internal\operations\prepa

re.py", line 287, in unpack_url

    hashes=hashes,

  File "c:\program files\python\lib\site-packages\pip\_internal\operations\prepa

re.py", line 159, in unpack_http_url

    link, downloader, temp_dir.path, hashes

  File "c:\program files\python\lib\site-packages\pip\_internal\operations\prepa

re.py", line 303, in _download_http_url

    for chunk in download.chunks:

  File "c:\program files\python\lib\site-packages\pip\_internal\utils\ui.py", li

ne 160, in iter

    for x in it:

  File "c:\program files\python\lib\site-packages\pip\_internal\network\utils.py

", line 39, in response_chunks

    decode_content=False,

  File "c:\program files\python\lib\site-packages\pip\_vendor\urllib3\response.p

y", line 564, in stream

    data = self.read(amt=amt, decode_content=decode_content)

  File "c:\program files\python\lib\site-packages\pip\_vendor\urllib3\response.p

y", line 529, in read

    raise IncompleteRead(self._fp_bytes_read, self.length_remaining)

  File "c:\program files\python\lib\contextlib.py", line 99, in __exit__

    self.gen.throw(type, value, traceback)

  File "c:\program files\python\lib\site-packages\pip\_vendor\urllib3\response.p

y", line 430, in _error_catcher

    raise ReadTimeoutError(self._pool, None, "Read timed out.")

pip._vendor.urllib3.exceptions.ReadTimeoutError: HTTPSConnectionPool(host='files

.pythonhosted.org', port=443): Read timed out.