unbuntu20安装scipy

ubuntu20.04中的python3使用命令为python3

sunpats@sun-vm-ubuntu:/usr/bin$ python

Command 'python' not found, did you mean:

  command 'python3' from deb python3
  command 'python' from deb python-is-python3

sunpats@sun-vm-ubuntu:/usr/bin$ python3
Python 3.8.2 (default, Apr 27 2020, 15:53:34) 
[GCC 9.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> 

使用pip，如果没有使用pip3。
如果还是没有，则安装sudo apt install python3-pip

sunpats@sun-vm-ubuntu:/usr/bin$ pip

Command 'pip' not found, but there are 18 similar ones.

sunpats@sun-vm-ubuntu:/usr/bin$ pip3

Usage:   
  pip3 <command> [options]

Commands:
  install                     Install packages.
  download                    Download packages.
  uninstall                   Uninstall packages.
  freeze                      Output installed packages in requirements format.
  list                        List installed packages.
  show                        Show information about installed packages.
  check                       Verify installed packages have compatible dependencies.
  config                      Manage local and global configuration.
  search                      Search PyPI for packages.
  wheel                       Build wheels from your requirements.
  hash                        Compute hashes of package archives.
  completion                  A helper command used for command completion.
  debug                       Show information useful for debugging.
  help                        Show help for commands.

General Options:
  -h, --help                  Show help.
  --isolated                  Run pip in an isolated mode, ignoring
                              environment variables and user configuration.
  -v, --verbose               Give more output. Option is additive, and can be
                              used up to 3 times.
  -V, --version               Show version and exit.
  -q, --quiet                 Give less output. Option is additive, and can be
                              used up to 3 times (corresponding to WARNING,
                              ERROR, and CRITICAL logging levels).
  --log <path>                Path to a verbose appending log.
  --proxy <proxy>             Specify a proxy in the form
                              [user:passwd@]proxy.server:port.
  --retries <retries>         Maximum number of retries each connection should
                              attempt (default 5 times).
  --timeout <sec>             Set the socket timeout (default 15 seconds).
  --exists-action <action>    Default action when a path already exists:
                              (s)witch, (i)gnore, (w)ipe, (b)ackup, (a)bort.
  --trusted-host <hostname>   Mark this host or host:port pair as trusted,
                              even though it does not have valid or any HTTPS.
  --cert <path>               Path to alternate CA bundle.
  --client-cert <path>        Path to SSL client certificate, a single file
                              containing the private key and the certificate
                              in PEM format.
  --cache-dir <dir>           Store the cache data in <dir>.
  --no-cache-dir              Disable the cache.
  --disable-pip-version-check
                              Don't periodically check PyPI to determine
                              whether a new version of pip is available for
                              download. Implied with --no-index.
  --no-color                  Suppress colored output
  --no-python-version-warning
                              Silence deprecation warnings for upcoming
                              unsupported Pythons.
sunpats@sun-vm-ubuntu:/usr/bin$ 

安装scipy

unpats@sun-vm-ubuntu:/usr/bin$ pip3 install scipy
Collecting scipy
  Downloading scipy-1.5.1-cp38-cp38-manylinux1_x86_64.whl (25.8 MB)
     |████████████████████████████████| 25.8 MB 4.5 MB/s 
Collecting numpy>=1.14.5
  Downloading numpy-1.19.0-cp38-cp38-manylinux2010_x86_64.whl (14.6 MB)
     |████████████████████████████████| 14.6 MB 783 kB/s 
Installing collected packages: numpy, scipy
  WARNING: The scripts f2py, f2py3 and f2py3.8 are installed in '/home/sunpats/.local/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
Successfully installed numpy-1.19.0 scipy-1.5.1
sunpats@sun-vm-ubuntu:/usr/bin$