anaconda虚拟环境下安装OpenCV出错
在anaconda虚拟环境下安装OpenCV：
pip install opencv-python出现以下红体字错误
Traceback (most recent call last):
File "D:\Anaconda3\envs\op\lib\site-packages\pip\_vendor\urllib3\response.py", line 437, in _error_catcher
yield
File "D:\Anaconda3\envs\op\lib\site-packages\pip\_vendor\urllib3\response.py", line 519, in read
data = self._fp.read(amt) if not fp_closed else b""
File "D:\Anaconda3\envs\op\lib\site-packages\pip\_vendor\cachecontrol\filewrapper.py", line 62, in read
data = self.__fp.read(amt)
File "D:\Anaconda3\envs\op\lib\http\client.py", line 461, in read
n = self.readinto(b)
File "D:\Anaconda3\envs\op\lib\http\client.py", line 505, in readinto
n = self.fp.readinto(b)
File "D:\Anaconda3\envs\op\lib\socket.py", line 589, in readinto
return self._sock.recv_into(b)
File "D:\Anaconda3\envs\op\lib\ssl.py", line 1071, in recv_into
return self.read(nbytes, buffer)
File "D:\Anaconda3\envs\op\lib\ssl.py", line 929, 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 "D:\Anaconda3\envs\op\lib\site-packages\pip\_internal\cli\base_command.py", line 216, in _main
status = self.run(options, args)
File "D:\Anaconda3\envs\op\lib\site-packages\pip\_internal\cli\req_command.py", line 182, in wrapper
return func(self, options, args)
File "D:\Anaconda3\envs\op\lib\site-packages\pip\_internal\commands\install.py", line 325, in run
reqs, check_supported_wheels=not options.target_dir
File "D:\Anaconda3\envs\op\lib\site-packages\pip\_internal\resolution\legacy\resolver.py", line 183, in resolve
discovered_reqs.extend(self._resolve_one(requirement_set, req))
File "D:\Anaconda3\envs\op\lib\site-packages\pip\_internal\resolution\legacy\resolver.py", line 388, in _resolve_one
abstract_dist = self._get_abstract_dist_for(req_to_install)
File "D:\Anaconda3\envs\op\lib\site-packages\pip\_internal\resolution\legacy\resolver.py", line 340, in _get_abstract_dist_for
abstract_dist = self.preparer.prepare_linked_requirement(req)
File "D:\Anaconda3\envs\op\lib\site-packages\pip\_internal\operations\prepare.py", line 469, in prepare_linked_requirement
hashes=self._get_linked_req_hashes(req)
File "D:\Anaconda3\envs\op\lib\site-packages\pip\_internal\operations\prepare.py", line 259, in unpack_url
hashes=hashes,
File "D:\Anaconda3\envs\op\lib\site-packages\pip\_internal\operations\prepare.py", line 130, in get_http_url
link, downloader, temp_dir.path, hashes
File "D:\Anaconda3\envs\op\lib\site-packages\pip\_internal\operations\prepare.py", line 282, in _download_http_url
for chunk in download.chunks:
File "D:\Anaconda3\envs\op\lib\site-packages\pip\_internal\cli\progress_bars.py", line 168, in iter
for x in it:
File "D:\Anaconda3\envs\op\lib\site-packages\pip\_internal\network\utils.py", line 88, in response_chunks
decode_content=False,
File "D:\Anaconda3\envs\op\lib\site-packages\pip\_vendor\urllib3\response.py", line 576, in stream
data = self.read(amt=amt, decode_content=decode_content)
File "D:\Anaconda3\envs\op\lib\site-packages\pip\_vendor\urllib3\response.py", line 541, in read
raise IncompleteRead(self._fp_bytes_read, self.length_remaining)
File "D:\Anaconda3\envs\op\lib\contextlib.py", line 130, in __exit__
self.gen.throw(type, value, traceback)
File "D:\Anaconda3\envs\op\lib\site-packages\pip\_vendor\urllib3\response.py", line 442, 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.
解决办法（添加一个国内源就可以了）
pip install opencv-python -i https://pypi.tuna.tsinghua.edu.cn/simple/