怎么回事
ERROR: Exception:
Traceback (most recent call last):
File "/data/data//files/usr/lib/python2.7/site-packages/pip/_internal/cli/base_command.py", line 223, in _main
status = (options, args)
File "/data/data//files/usr/lib/python2.7/site-packages/pip/_internal/cli/req_command.py", line 180, in wrapper
return func(self, options, args)
File "/data/data//files/usr/lib/python2.7/site-packages/pip/_internal/commands/", line 321, in run
reqs, check_supported_wheels=not options.target_dir
File "/data/data//files/usr/lib/python2.7/site-packages/pip/_internal/resolution/legacy/", line 180, in resolve
discovered_reqs.extend(self._resolve_one(requirement_set, req))
File "/data/data//files/usr/lib/python2.7/site-packages/pip/_internal/resolution/legacy/", line 385, in _resolve_one
dist = self._get_dist_for(req_to_install)
File "/data/data//files/usr/lib/python2.7/site-packages/pip/_internal/resolution/legacy/", line 337, in _get_dist_for
dist = .prepare_linked_requirement(req)
File "/data/data//files/usr/lib/python2.7/site-packages/pip/_internal/operations/", line 480, in prepare_linked_requirement
return self._prepare_linked_requirement(req, parallel_builds)
File "/data/data//files/usr/lib/python2.7/site-packages/pip/_internal/operations/", line 505, in _prepare_linked_requirement
self.download_dir, hashes,
File "/data/data//files/usr/lib/python2.7/site-packages/pip/_internal/operations/", line 257, in unpack_url
hashes=hashes,
File "/data/data//files/usr/lib/python2.7/site-packages/pip/_internal/operations/", line 130, in get_http_url
from_path, content_type = download(link, temp_dir.path)
File "/data/data//files/usr/lib/python2.7/site-packages/pip/_internal/network/", line 163, in __call__
for chunk in chunks:
File "/data/data//files/usr/lib/python2.7/site-packages/pip/_internal/cli/progress_bars.py", line 168, in iter
for x in it:
File "/data/data//files/usr/lib/python2.7/site-packages/pip/_internal/network/", line 88, in response_chunks
decode_content=False,
File "/data/data//files/usr/lib/python2.7/site-packages/pip/_vendor/urllib3/", line 576, in stream
data = (amt=amt, decode_content=decode_content)
File "/data/data//files/usr/lib/python2.7/site-packages/pip/_vendor/urllib3/", line 541, in read
raise IncompleteRead(self._fp_bytes_read, self.length_remaining)
File "/data/data//files/usr/lib/python2.7/", line 35, in __exit__
(type, value, traceback)
File "/data/data//files/usr/lib/python2.7/site-packages/pip/_vendor/urllib3/", line 451, in _error_catcher
raise ReadTimeoutError(self._pool, None, "Read timed out.")
ReadTimeoutError: HTTPSConnectionPool(host='', port=443): Read timed out.