Introduction

liquify is a minifier for Python 2 focused on maintaining usability of the minified code as an imported module (which means it preserves functions and variables that could have been of use for external code calling the minified code). For example:

$ cat fib.py
cache = {0: 0, 1: 1, 2: 1, 3: 2}
def fibonacci(n):
    """Return the nth Fibonacci number."""
    if n not in cache:
        a = n // 2
        r = n % 2
        m = (r * 2) - 1
        cache[n] = fibonacci(a + 1) ** 2 + m * fibonacci(a + r - 1) ** 2
    return cache[n]

$ liquify --module --docstrings fib.py
cache={0:0,1:1,2:1,3:2}
def fibonnacci(a):
 if a not in b:d=a//2;e=a%2;f=e*2-1;b[a]=fibonnacci(d+1)**2+f*c(d+e-1)**2
 return b[a]

Command line

Usage: liquify [options] [-o OUTPUT] FILE

Options:
  --version             show program's version number and exit
  -h, --help            show this help message and exit
  -o OUTPUT, --output=OUTPUT
                        output file (default: stdout)
  -D, --docstrings      remove docstrings and other statements with no side
                        effects (implies --noselftest)
  -R, --rename          aggressively rename non-preserved variables
  -i INDENT, --indent=INDENT
                        number of spaces per indentation level
  -p PRESERVE, --preserve=PRESERVE
                        preserve words from renaming (separate by commas)
  -m, --module          preserve top level object names (for use as imported

  --nojoinlines         put each statement on its own line
  --noselftest          skip the self-test
  --debug               dump the parse tree

License

liquify is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.