尝试安装 numpy 时出现此异常。我尝试过直接调用 pip（命令：pip install numpy）和通过 sudo 两种方式。请帮助解决此问题：
fareha@fareha-Inspiron-5537:~$ sudo pip install numpy scipy
[sudo] password for fareha:
The directory '/home/fareha/.cache/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
The directory '/home/fareha/.cache/pip' or its parent directory is not owned by the current user and caching wheels has been disabled. check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
Collecting numpy
Downloading numpy-1.14.2-cp27-cp27mu-manylinux1_x86_64.whl (12.1MB)
76% |████████████████████████▍ | 9.3MB 3.2kB/s eta 0:14:49Exception:
Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/pip/basecommand.py", line 209, in main
status = self.run(options, args)
File "/usr/lib/python2.7/dist-packages/pip/commands/install.py", line 317, in run
requirement_set.prepare_files(finder)
File "/usr/lib/python2.7/dist-packages/pip/req/req_set.py", line 360, in prepare_files
ignore_dependencies=self.ignore_dependencies))
File "/usr/lib/python2.7/dist-packages/pip/req/req_set.py", line 577, in _prepare_file
session=self.session, hashes=hashes)
File "/usr/lib/python2.7/dist-packages/pip/download.py", line 810, in unpack_url
hashes=hashes
File "/usr/lib/python2.7/dist-packages/pip/download.py", line 649, in unpack_http_url
hashes)
File "/usr/lib/python2.7/dist-packages/pip/download.py", line 871, in _download_http_url
_download_url(resp, link, content_file, hashes)
File "/usr/lib/python2.7/dist-packages/pip/download.py", line 595, in _download_url
hashes.check_against_chunks(downloaded_chunks)
File "/usr/lib/python2.7/dist-packages/pip/utils/hashes.py", line 46, in check_against_chunks
for chunk in chunks:
File "/usr/lib/python2.7/dist-packages/pip/download.py", line 563, in written_chunks
for chunk in chunks:
File "/usr/lib/python2.7/dist-packages/pip/utils/ui.py", line 139, in iter
for x in it:
File "/usr/lib/python2.7/dist-packages/pip/download.py", line 552, in resp_read
decode_content=False):
File "/usr/share/python-wheels/urllib3-1.13.1-py2.py3-none-any.whl/urllib3/response.py", line 344, in stream
data = self.read(amt=amt, decode_content=decode_content)
File "/usr/share/python-wheels/urllib3-1.13.1-py2.py3-none-any.whl/urllib3/response.py", line 311, in read
flush_decoder = True
File "/usr/lib/python2.7/contextlib.py", line 35, in __exit__
self.gen.throw(type, value, traceback)
File "/usr/share/python-wheels/urllib3-1.13.1-py2.py3-none-any.whl/urllib3/response.py", line 240, in _error_catcher
raise ReadTimeoutError(self._pool, None, 'Read timed out.')
ReadTimeoutError: HTTPSConnectionPool(host='pypi.python.org', port=443): Read timed out.
答案1
可以使用以下命令从默认存储库安装 Python 2.x 的 Numpy 和 Scipy：
sudo apt install python-numpy # 20.04 and earlier
sudo apt install python-scipy # 18.04 and earlier
Python 3.x 对应的包是 python3-numpy 和 python3-scipy。