4 ms·

PySh: an attempt to create a shell providing both bash and Python features

33 points by gasull 17y ago

johnnybgoode 17y ago
They used one of my favorite licenses, the FSF-approved WTFPL: DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE Version 2, December 2004 Copyright (C) 2004 Sam Hocevar 14 rue de Plaisance, 75014 Paris, France Everyone is permitted to copy and distribute verbatim or modified copies of this license document, and changing it is allowed as long as the name is changed. DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 0. You just DO WHAT THE FUCK YOU WANT TO.
- timf 17y ago
  That is strange that this is FSF approved to me... In the US at least, without the typical "AS IS" warning (as you would see in the MIT license which seems just as good for the intended purpose of the WTFPL), this is creating an unintended liability? http://www.linuxjournal.com/article/6225 http://www.linuxjournal.com/article/6225
  - johnnybgoode 17y ago
    From the WTFPL site: Why is there no “no warranty” clause? The WTFPL is an all-purpose license and does not cover only computer programs; it can be used for artwork, documentation and so on. As such, it only covers copying, distribution and modification. If you want to add a no warranty clause for a program, you may use the following wording in your source code: /* This program is free software. It comes without any warranty, to * the extent permitted by applicable law. You can redistribute it * and/or modify it under the terms of the Do What The Fuck You Want * To Public License, Version 2, as published by Sam Hocevar. See * http://sam.zoy.org/wtfpl/COPYING for more details. */
    - timf 17y ago
      Thanks. I see that the pysh person states "with a no warranty close [sic]". Did not catch that.
  - jrockway 17y ago
    > this is creating an unintended liability If you want to sell WTFPL-licensed software, you should probably relicense it under the MIT (or BSD, or GPL) license. Then you are safe. The original author that put some code on a web page is probably not going to be liable anyway.
- asb 17y ago
  Personally I hate licenses like this. At least this one has been approved by the FSF, but I have to look it up. I see no reason not to just use MIT/BSD if you want a short, permissive license. That way everyone knows exactly what they can do with it and programmers hoping to use your code won't have to beg the legal department to ok it.
  - ErrantX 17y ago
    I agree. If you really want something extremely permissive just go the SQLite route. Otherwise BSD/MIT (BSD is my fav). There seems little use for this license.
  - johnnybgoode 17y ago
    I can understand your concern about having to get yet another license approved by the legal department. If you're interested, the author explains his problems with public domain and the BSD license here: http://sam.zoy.org/wtfpl/ http://sam.zoy.org/wtfpl/
cakeface 17y ago
How does this work with whitespace? Do you have to indent if you are going multi-line?
- acgourley 17y ago
  Yeah it seems like ruby would be a better fit here, as much as I like python.
  - eru 17y ago
    Perhaps they can import the Haskell-rules. Haskell allows indentation and curly braces/semicolons to be mixed at will.
mlLK 17y ago
Awesome, who knew that bash could be (more or less) reimplemented in another language('s interpreter) in less than 300 lines? I sure as hell didn't. This bash script is the trump card to all of my previous excuses for why I don't want, need, or care to learn Python. . .thanks Antoine. . .I just got sold. Ask thread: who here uses Zsh? does anyone actually think they're more productive in their shell than they are in bash? why do you think this? can you prove it?
- chaosmachine 17y ago
  zsh tab-completes command options (in freebsd, anyway. doesn't seem to work in osx).
  - arantius 17y ago
    So does bash. http://bash-completion.alioth.debian.org/ http://bash-completion.alioth.debian.org/ It's extensible to boot.
- omail 17y ago
  PySH is not bash. /tmp/pysh > [[ -d test ]] Unknown command: [[ -d test ]]
- christopherolah 17y ago
  I use fish about just as often as I use BASH. It has some really nice features, like tabbed multiline editing and syntax highlighting... http://fishshell.org/index.php http://fishshell.org/index.php In my experience: It tab completes faster than bash, but is slower when it comes to some other things. It's pretty young as far as shells go, and has some irritating bugs...
philjackson 17y ago
I've always fancied an interactive (ruling out scsh) sexp based shell. At the prompt Bourne compatibility doesn't matter to me.
sjf 17y ago
There already exists Pyshell ( http://pyshell.sourceforge.net/ http://pyshell.sourceforge.net/ ). Pyshell is a lot more mature, PySh is more a proof of concept.

33 points by gasull 17y ago

They used one of my favorite licenses, the FSF-approved WTFPL: DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE Version 2, December 2004 Copyright (C) 2004 Sam Hocevar 14 rue de Plaisance, 75014 Paris, France Everyone is permitted to copy and distribute verbatim or modified copies of this license document, and changing it is allowed as long as the name is changed. DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 0. You just DO WHAT THE FUCK YOU WANT TO.

timf 17y ago
That is strange that this is FSF approved to me... In the US at least, without the typical "AS IS" warning (as you would see in the MIT license which seems just as good for the intended purpose of the WTFPL), this is creating an unintended liability? http://www.linuxjournal.com/article/6225 http://www.linuxjournal.com/article/6225
- johnnybgoode 17y ago
  From the WTFPL site: Why is there no “no warranty” clause? The WTFPL is an all-purpose license and does not cover only computer programs; it can be used for artwork, documentation and so on. As such, it only covers copying, distribution and modification. If you want to add a no warranty clause for a program, you may use the following wording in your source code: /* This program is free software. It comes without any warranty, to * the extent permitted by applicable law. You can redistribute it * and/or modify it under the terms of the Do What The Fuck You Want * To Public License, Version 2, as published by Sam Hocevar. See * http://sam.zoy.org/wtfpl/COPYING for more details. */
  - timf 17y ago
    Thanks. I see that the pysh person states "with a no warranty close [sic]". Did not catch that.
- jrockway 17y ago
  > this is creating an unintended liability If you want to sell WTFPL-licensed software, you should probably relicense it under the MIT (or BSD, or GPL) license. Then you are safe. The original author that put some code on a web page is probably not going to be liable anyway.
asb 17y ago
Personally I hate licenses like this. At least this one has been approved by the FSF, but I have to look it up. I see no reason not to just use MIT/BSD if you want a short, permissive license. That way everyone knows exactly what they can do with it and programmers hoping to use your code won't have to beg the legal department to ok it.
- ErrantX 17y ago
  I agree. If you really want something extremely permissive just go the SQLite route. Otherwise BSD/MIT (BSD is my fav). There seems little use for this license.
- johnnybgoode 17y ago
  I can understand your concern about having to get yet another license approved by the legal department. If you're interested, the author explains his problems with public domain and the BSD license here: http://sam.zoy.org/wtfpl/ http://sam.zoy.org/wtfpl/

cakeface 17y ago

How does this work with whitespace? Do you have to indent if you are going multi-line?

acgourley 17y ago
Yeah it seems like ruby would be a better fit here, as much as I like python.
- eru 17y ago
  Perhaps they can import the Haskell-rules. Haskell allows indentation and curly braces/semicolons to be mixed at will.

mlLK 17y ago

Awesome, who knew that bash could be (more or less) reimplemented in another language('s interpreter) in less than 300 lines? I sure as hell didn't. This bash script is the trump card to all of my previous excuses for why I don't want, need, or care to learn Python. . .thanks Antoine. . .I just got sold. Ask thread: who here uses Zsh? does anyone actually think they're more productive in their shell than they are in bash? why do you think this? can you prove it?

chaosmachine 17y ago
zsh tab-completes command options (in freebsd, anyway. doesn't seem to work in osx).
- arantius 17y ago
  So does bash. http://bash-completion.alioth.debian.org/ http://bash-completion.alioth.debian.org/ It's extensible to boot.
omail 17y ago
PySH is not bash. /tmp/pysh > [[ -d test ]] Unknown command: [[ -d test ]]
christopherolah 17y ago
I use fish about just as often as I use BASH. It has some really nice features, like tabbed multiline editing and syntax highlighting... http://fishshell.org/index.php http://fishshell.org/index.php In my experience: It tab completes faster than bash, but is slower when it comes to some other things. It's pretty young as far as shells go, and has some irritating bugs...

philjackson 17y ago

I've always fancied an interactive (ruling out scsh) sexp based shell. At the prompt Bourne compatibility doesn't matter to me.

sjf 17y ago

There already exists Pyshell ( http://pyshell.sourceforge.net/ http://pyshell.sourceforge.net/ ). Pyshell is a lot more mature, PySh is more a proof of concept.