Write your Python program in a single line!
Singleline is a command-line tool that transpiles almost any Python program into one line. The resultant code
THIS PROJECT IS NOT FINISHED AND NOT PUBLISHED YET!!! But later on you can:
Use pip to install:
pip install singlelineTo transpile a Python file (e.g., script.py) into a single line, run:
singleline script.pySingleLine offers two modes: function transpiling and file transpiling.
Theoretically, converting imperative program to a one-line lambda is trivial with the usage of state monad transformers (or with a haskell's ST equivalent); however, binding a new lambda everytime a variable in the environment is changed induces significant stack usage and will easily cause a RecursionError. SingleLine aims to preserve the max recursion depth of the source program as much as possible, and thus uses syntax such as := for assignments and hacks such as next(filter(f, xs)) for a non-recursive implementation of right folds (since Python's reduce doesn't short-wire).
Many similar concepts are explored and discussed in the playground.ipynb file.
While Singleline works on the majority of Python programs, there are a few caveats:
- Operation and assignment (e.g.,
+=) are transpiled to a naive assignment (e.g.,a += btoa = a + b). This could be circumvented by usingoperator.iadd, but that would result in an extra import. - Mutated variables in loops will not be tracked if mutated with
evalorexec(e.g.,exec('a = 32')inside a loop will not alteraas expected).
ok I wrote this tool to annoy Mr. Mullan lol hes now gonna grade like a million one-line lambda programs