pip3 出现 -bash /usr/local/bin/pip3 /usr/local/bin/python3 no directory-优快云博客

本文介绍了解决pip3软链接问题的方法，通过删除失效的软链接并重新建立正确的软链接，使得pip3能够正常运行。同时展示了如何使用pip3进行包管理，包括安装、下载、卸载等操作。

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同时安装python和python3
[root@master ~]# python
Python 2.7.5 (default, Apr 11 2018, 07:36:10)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-28)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>>
[root@master ~]#
[root@master ~]# python3
Python 3.6.5 (default, Dec 7 2018, 16:54:59)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-36)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>>
[root@master ~]#
pip3 出现
-bash /usr/local/bin/pip3 /usr/local/bin/python3 no directory
这个是软连接出了问题
cd /usr/local/bin/
删除失效的软连接和pip3
重新建立软连接
ln -s /home/data/appcom/python3/bin/pip3 /usr/local/bin/pip3

pip3
[root@master ~]# pip3

Usage:
pip <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.
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.
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 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.