specifycommand什么意思

pip命令详解

首先输入pip -h查看pip命令

1 Usage:

2 pip <command> [options]

3

4 Commands:

5 install Install packages.

6 download Download packages.

7 uninstall Uninstall packages.

8 freeze Output installed packages in requirements format.

9 list List installed packages.

10 show Show information about installed packages.

11 check Verify installed packages have compatible dependencies.

12 config Manage local and global configuration.

13 search Search PyPI for packages.

14 wheel Build wheels from your requirements.

15 hash Compute hashes of package archives.

16 completion A helper command used for command completion.

17 help Show help for commands.

18

19 General Options:

20 -h, --help Show help.

21 --isolated Run pip in an isolated mode, ignoring environment variables and user configuration.

22 -v, --verbose Give more output. Option is additive, and can be used up to 3 times.

23 -V, --version Show version and exit.

24 -q, --quiet Give less output. Option is additive, and can be used up to 3 times (corresponding

25 to WARNING, ERROR, and CRITICAL logging levels).

26 --log <path> Path to a verbose appending log.

27 --proxy <proxy> Specify a proxy in the form [user:passwd@]proxy.server:port.

28 --retries <retries> Maximum number of retries each connection should attempt (default 5 times).

29 --timeout <sec> Set the socket timeout (default 15 seconds).

30 --exists-action <action> Default action when a path already exists: (s)witch, (i)gnore, (w)ipe, (b)ackup,

31 (a)bort).

32 --trusted-host <hostname> Mark this host as trusted, even though it does not have valid or any HTTPS.

33 --cert <path> Path to alternate CA bundle.

34 --client-cert <path> Path to SSL client certificate, a single file containing the private key and the

35 certificate in PEM format.

36 --cache-dir <dir> Store the cache data in <dir>.

37 --no-cache-dir Disable the cache.

38 --disable-pip-version-check

39 Don't periodically check PyPI to determine whether a new version of pip is available

40 for download. Implied with --no-index.

41 --no-color Suppress colored output

安装库：pip innstall xxxx

下载库：pip download xxxx

卸载库：pip uninstall xxxx

按照特定格式输出已安装的库：pip freeze

输出已安装的库：pip list

显示某个已安装库的信息：pip show xxxx