Python: Retrieve filename of currently-open Ableton Live set

get-current-live-set.py

#!/usr/local/bin/python

# Python: Retrieve filename of currently-open Ableton Live set
# based on inspecting Live's last Log.txt.

import re
import os
import glob

# Use Log.txt corresponding to latest Live version. eg:
# ~/Library/Preferences/Ableton/Live\ 9.0.6/Log.txt 

root = os.path.expanduser("~/Library/Preferences/Ableton")
logfiles = glob.glob("%s/Live */Log.txt" % root)
regexp = "file://.*\.als$"

if logfiles:
    logfile = list(sorted(logfiles))[-1]
    # print "(using logfile %s)" % logfile
    contents = file(logfile).readlines()
    projects = filter(lambda line: re.search(regexp, line), contents)
    project = projects[-1].strip()
    project = os.path.basename(project)
    print project