安装代码：sudo pip install tensorflow==2.0.0-beta0
问题描述如下：
ERROR: Exception:
Traceback (most recent call last):
File "/usr/local/lib/python3.6/dist-packages/pip/_vendor/urllib3/response.py", line 425, in _error_catcher
yield
File "/usr/local/lib/python3.6/dist-packages/pip/_vendor/urllib3/response.py", line 507, in read
data = self._fp.read(amt) if not fp_closed else b""
File "/usr/lib/python3.6/http/client.py", line 459, in read
n = self.readinto(b)
File "/usr/lib/python3.6/http/client.py", line 503, in readinto
n = self.fp.readinto(b)
File "/usr/lib/python3.6/socket.py", line 586, in readinto
return self._sock.recv_into(b)
File "/usr/lib/python3.6/ssl.py", line 1012, in recv_into
return self.read(nbytes, buffer)
File "/usr/lib/python3.6/ssl.py", line 874, in read
return self._sslobj.read(len, buffer)
File "/usr/lib/python3.6/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 "/usr/local/lib/python3.6/dist-packages/pip/_internal/cli/base_command.py", line 188, in _main
status = self.run(options, args)
File "/usr/local/lib/python3.6/dist-packages/pip/_internal/cli/req_command.py", line 185, in wrapper
return func(self, options, args)
File "/usr/local/lib/python3.6/dist-packages/pip/_internal/commands/install.py", line 333, in run
reqs, check_supported_wheels=not options.target_dir
File "/usr/local/lib/python3.6/dist-packages/pip/_internal/resolution/legacy/resolver.py", line 179, in resolve
discovered_reqs.extend(self._resolve_one(requirement_set, req))
File "/usr/local/lib/python3.6/dist-packages/pip/_internal/resolution/legacy/resolver.py", line 362, in _resolve_one
abstract_dist = self._get_abstract_dist_for(req_to_install)
File "/usr/local/lib/python3.6/dist-packages/pip/_internal/resolution/legacy/resolver.py", line 314, in _get_abstract_dist_for
abstract_dist = self.preparer.prepare_linked_requirement(req)
File "/usr/local/lib/python3.6/dist-packages/pip/_internal/operations/prepare.py", line 469, in prepare_linked_requirement
hashes=hashes,
File "/usr/local/lib/python3.6/dist-packages/pip/_internal/operations/prepare.py", line 259, in unpack_url
hashes=hashes,
File "/usr/local/lib/python3.6/dist-packages/pip/_internal/operations/prepare.py", line 130, in get_http_url
link, downloader, temp_dir.path, hashes
File "/usr/local/lib/python3.6/dist-packages/pip/_internal/operations/prepare.py", line 281, in _download_http_url
for chunk in download.chunks:
File "/usr/local/lib/python3.6/dist-packages/pip/_internal/cli/progress_bars.py", line 166, in iter
for x in it:
File "/usr/local/lib/python3.6/dist-packages/pip/_internal/network/utils.py", line 39, in response_chunks
decode_content=False,
File "/usr/local/lib/python3.6/dist-packages/pip/_vendor/urllib3/response.py", line 564, in stream
data = self.read(amt=amt, decode_content=decode_content)
File "/usr/local/lib/python3.6/dist-packages/pip/_vendor/urllib3/response.py", line 529, in read
raise IncompleteRead(self._fp_bytes_read, self.length_remaining)
File "/usr/lib/python3.6/contextlib.py", line 99, in __exit__
self.gen.throw(type, value, traceback)
File "/usr/local/lib/python3.6/dist-packages/pip/_vendor/urllib3/response.py", 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.
求解决方法
在命令后面加上-i参数：
sudo pip install tensorflow==2.0.0-beta0 -i https://pypi.tuna.tsinghua.edu.cn/simple
更换一下pip源，换成国内的清华源或者豆瓣
如上所答，Read timed out 这个是源的问题，加上 -i 指定清华源即可