Compress files (I need to use this somewhere else)

compress.py

#!/usr/bin/python3

import os, shutil, sys, subprocess

p = lambda *e: '/'.join(e)

def bash (*command):
  c = ' '.join(command)
  print('Doing ', c)
  subprocess.Popen(c, stderr=sys.stdout, stdout=sys.stdout, shell=True).wait()

td = 'omgtempdir'
root = '.'

def processfile(d, f):
  orig = p(d, f)
  os.mkdir(td)
  bash('unzip -q', orig, '-d', td)
  os.chdir(td)
  bash('zip -q -rp0', f, '*')
  bash('mv', f, orig)
  os.chdir('..')
  bash('rm -rf', td)

if __name__ == "__main__":
  child = sys.argv[-1]
  tar = child + '.tar'
  root = os.getcwd()
  os.chdir(child)
  for d, sds, fs in os.walk(p(root, child)):
    for f in fs:
      if f[-4:] in "pttx xlsx docx".split():
        print('Starting', p(d, f))
        processfile(d, f)
  os.chdir(root)
  bash('7za a -r -t7z -m0=lzma2 -mx=9 -mfb=273 -md=28 -ms=8g -mmt=off -mmtf=off -mqs=on -bt -bb3', child+'.7z', child)