问题：通过默认镜像安装，下载过程中可能会报错，下载安装失败
Traceback (most recent call last): File “E:\Anaconda3\lib\site-packages\pip_vendor\urllib3\response.py”, line 360, in _error_catcher yield File “E:\Anaconda3\lib\site-packages\pip_vendor\urllib3\response.py”, line 442, in read data = self._fp.read(amt) File “E:\Anaconda3\lib\site-packages\pip_vendor\cachecontrol\filewrapper.py”, line 62, in read data = self.__fp.read(amt) File “E:\Anaconda3\lib\http\client.py”, line 447, in read n = self.readinto(b) File “E:\Anaconda3\lib\http\client.py”, line 491, in readinto n = self.fp.readinto(b) File “E:\Anaconda3\lib\socket.py”, line 589, in readinto return self._sock.recv_into(b) File “E:\Anaconda3\lib\ssl.py”, line 1052, in recv_into return self.read(nbytes, buffer) File “E:\Anaconda3\lib\ssl.py”, line 911, in read return 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 “E:\Anaconda3\lib\site-packages\pip_internal\cli\base_command.py”, line 179, in main status = self.run(options, args) File “E:\Anaconda3\lib\site-packages\pip_internal\commands\install.py”, line 315, in run resolver.resolve(requirement_set) File “E:\Anaconda3\lib\site-packages\pip_internal\resolve.py”, line 131, in resolve self._resolve_one(requirement_set, req) File “E:\Anaconda3\lib\site-packages\pip_internal\resolve.py”, line 294, in _resolve_one abstract_dist = self._get_abstract_dist_for(req_to_install) File “E:\Anaconda3\lib\site-packages\pip_internal\resolve.py”, line 242, in _get_abstract_dist_for self.require_hashes File “E:\Anaconda3\lib\site-packages\pip_internal\operations\prepare.py”, line 334, in prepare_linked_requirement progress_bar=self.progress_bar File “E:\Anaconda3\lib\site-packages\pip_internal\download.py”, line 878, in unpack_url progress_bar=progress_bar File “E:\Anaconda3\lib\site-packages\pip_internal\download.py”, line 702, in unpack_http_url progress_bar) File “E:\Anaconda3\lib\site-packages\pip_internal\download.py”, line 946, in _download_http_url _download_url(resp, link, content_file, hashes, progress_bar) File “E:\Anaconda3\lib\site-packages\pip_internal\download.py”, line 639, in _download_url hashes.check_against_chunks(downloaded_chunks) File “E:\Anaconda3\lib\site-packages\pip_internal\utils\hashes.py”, line 62, in check_against_chunks for chunk in chunks: File “E:\Anaconda3\lib\site-packages\pip_internal\download.py”, line 607, in written_chunks for chunk in chunks: File “E:\Anaconda3\lib\site-packages\pip_internal\utils\ui.py”, line 159, in iter for x in it: File “E:\Anaconda3\lib\site-packages\pip_internal\download.py”, line 596, in resp_read decode_content=False): File “E:\Anaconda3\lib\site-packages\pip_vendor\urllib3\response.py”, line 494, in stream data = self.read(amt=amt, decode_content=decode_content) File “E:\Anaconda3\lib\site-packages\pip_vendor\urllib3\response.py”, line 459, in read raise IncompleteRead(self._fp_bytes_read, self.length_remaining) File “E:\Anaconda3\lib\contextlib.py”, line 130, in exit self.gen.throw(type, value, traceback) File “E:\Anaconda3\lib\site-packages\pip_vendor\urllib3\response.py”, line 365, 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.
解决方法：一般可以考虑更换镜像源
pip install tensorflow -i https://pypi.douban.com/simple
结果：安装成功，并且速度快