Clear recent files in UCSF Chimera Rapid Access panel

clear_recent_files_chimera.py

#!/usr/bin/env python

import os
from shutil import copy
from pprint import pprint

path = os.path.expanduser("~/.chimera/preferences")
copy(path, path + ".bak")  # just in case
with open(path) as f:
    data = f.read()
pydata = eval(data)
pydata['Rapid Access']['data history'] = []
with open(path, 'w') as f:
    pprint(pydata, stream=f)