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author | kotfu <kotfu@kotfu.net> | 2019-07-02 19:02:36 -0600 |
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committer | kotfu <kotfu@kotfu.net> | 2019-07-02 19:02:36 -0600 |
commit | 92ae130c38520b249eb7351cfb0da1ad67d3d3cf (patch) | |
tree | a403641a1a9412b19e26b52fae83635d812f9409 /docs/overview/alternatives.rst | |
parent | 80950bfa4216ed20df5d63f1ebe63bac5b3746b4 (diff) | |
download | cmd2-git-92ae130c38520b249eb7351cfb0da1ad67d3d3cf.tar.gz |
Major overhaul of documentation structure for #709
Diffstat (limited to 'docs/overview/alternatives.rst')
-rw-r--r-- | docs/overview/alternatives.rst | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/docs/overview/alternatives.rst b/docs/overview/alternatives.rst new file mode 100644 index 00000000..bf1545d6 --- /dev/null +++ b/docs/overview/alternatives.rst @@ -0,0 +1,53 @@ +============================ +Alternatives to cmd and cmd2 +============================ + +For programs that do not interact with the user in a continuous loop - +programs that simply accept a set of arguments from the command line, return +results, and do not keep the user within the program's environment - all +you need are sys_\ .argv (the command-line arguments) and argparse_ +(for parsing UNIX-style options and flags). Though some people may prefer docopt_ +or click_ to argparse_. + +.. _sys: https://docs.python.org/3/library/sys.html +.. _argparse: https://docs.python.org/3/library/argparse.html +.. _docopt: https://pypi.python.org/pypi/docopt +.. _click: http://click.pocoo.org + + +The curses_ module produces applications that interact via a plaintext +terminal window, but are not limited to simple text input and output; +they can paint the screen with options that are selected from using the +cursor keys. However, programming a curses_-based application is not as +straightforward as using cmd_. + +.. _curses: https://docs.python.org/3/library/curses.html +.. _cmd: https://docs.python.org/3/library/cmd.html + +Several Python packages exist for building interactive command-line applications +approximately similar in concept to cmd_ applications. None of them +share ``cmd2``'s close ties to cmd_, but they may be worth investigating +nonetheless. Two of the most mature and full featured are: + + * `Python Prompt Toolkit`_ + * Click_ + +.. _`Python Prompt Toolkit`: https://github.com/jonathanslenders/python-prompt-toolkit + +`Python Prompt Toolkit`_ is a library for building powerful interactive command lines and terminal applications in +Python. It provides a lot of advanced visual features like syntax highlighting, bottom bars, and the ability to +create fullscreen apps. + +Click_ is a Python package for creating beautiful command line interfaces in a composable way with as little code as +necessary. It is more geared towards command line utilities instead of command line interpreters, but it can be used +for either. + +Getting a working command-interpreter application based on either `Python Prompt Toolkit`_ or Click_ requires a good +deal more effort and boilerplate code than ``cmd2``. ``cmd2`` focuses on providing an excellent out-of-the-box experience +with as many useful features as possible built in for free with as little work required on the developer's part as +possible. We believe that ``cmd2`` provides developers the easiest way to write a command-line interpreter, while +allowing a good experience for end users. If you are seeking a visually richer end-user experience and don't +mind investing more development time, we would recommend checking out `Python Prompt Toolkit`_. + +In the future, we may investigate options for incorporating the usage of `Python Prompt Toolkit`_ and/or Click_ into +``cmd2`` applications. |