3 ms·

- slow startup - no pipe/redirection mechanism - high overhead in version/library control(pyenv, venv)

spicybright 6y ago
- no support for one liners because of python syntax - commands too verbose. a line with two lambda expressions would look terrible (All my personal preference, obviously. But I'd rather have any other language than python, even lua)
- Pxtl 6y ago
  Lua? Really? My first go-to complaint about Lua is exactly that same one - poor support for lambda-style programming for expressive one-liners.
  - spicybright 6y ago
    When I said I'd even take lua over python, that's only if I was forced to pick a high level language for a shell. Lua is really easy to conjure up higher level algos, like javascript can. But I'm not convinced any high level language is a viable replacement for bash. It would have to be more functional than bash whilst still having good support for standard unix tools. One very interesting idea I found was a macro library for racket that turns s-expressions from deeply nested structures into a much flatter representation. Lisp might be a good option with toy with because of flexibility like that. https://www.reddit.com/r/Racket/comments/mands9/fluent_unix_style_pipes_and_lambda_shorthand_to/ https://www.reddit.com/r/Racket/comments/mands9/fluent_unix_...
    - jhgb 6y ago
      So, you want Scsh, then?
- CraneWorm 6y ago
  > But I'd rather have any other language than python, even lua seriously? lua shell won't even evaluate bare expressions
  - boogies 6y ago
    I think you mean luajit shell? $ lua5.3 Lua 5.3.3 Copyright (C) 1994-2016 Lua.org, PUC-Rio > 2*3 6 $ rlwrap luajit LuaJIT 2.1.0-beta3 -- Copyright (C) 2005-2017 Mike Pall. http://luajit.org/ JIT: ON SSE2 SSE3 SSE4.1 AMD fold cse dce fwd dse narrow loop abc sink fuse > 2*3 stdin:1: unexpected symbol near '2' > =2*3 6
musingsole 6y ago
Mostly agree, though if you need piping and redirection, you can use Python for that: file_list = !ls delete_me = b[0] !rm {delete_me} Though it can't fit into a single statement due to a greedy '!'
herjazz 6y ago
Criminally slow startup (10 seconds on my system). Incredibly ponderous tab complete too. How is this even possible!? Non-starter as a shell for me.

- no support for one liners because of python syntax - commands too verbose. a line with two lambda expressions would look terrible (All my personal preference, obviously. But I'd rather have any other language than python, even lua)

Pxtl 6y ago
Lua? Really? My first go-to complaint about Lua is exactly that same one - poor support for lambda-style programming for expressive one-liners.
- spicybright 6y ago
  When I said I'd even take lua over python, that's only if I was forced to pick a high level language for a shell. Lua is really easy to conjure up higher level algos, like javascript can. But I'm not convinced any high level language is a viable replacement for bash. It would have to be more functional than bash whilst still having good support for standard unix tools. One very interesting idea I found was a macro library for racket that turns s-expressions from deeply nested structures into a much flatter representation. Lisp might be a good option with toy with because of flexibility like that. https://www.reddit.com/r/Racket/comments/mands9/fluent_unix_style_pipes_and_lambda_shorthand_to/ https://www.reddit.com/r/Racket/comments/mands9/fluent_unix_...
  - jhgb 6y ago
    So, you want Scsh, then?
CraneWorm 6y ago
> But I'd rather have any other language than python, even lua seriously? lua shell won't even evaluate bare expressions
- boogies 6y ago
  I think you mean luajit shell? $ lua5.3 Lua 5.3.3 Copyright (C) 1994-2016 Lua.org, PUC-Rio > 2*3 6 $ rlwrap luajit LuaJIT 2.1.0-beta3 -- Copyright (C) 2005-2017 Mike Pall. http://luajit.org/ JIT: ON SSE2 SSE3 SSE4.1 AMD fold cse dce fwd dse narrow loop abc sink fuse > 2*3 stdin:1: unexpected symbol near '2' > =2*3 6

musingsole 6y ago

Mostly agree, though if you need piping and redirection, you can use Python for that: file_list = !ls delete_me = b[0] !rm {delete_me} Though it can't fit into a single statement due to a greedy '!'

herjazz 6y ago

Criminally slow startup (10 seconds on my system). Incredibly ponderous tab complete too. How is this even possible!? Non-starter as a shell for me.