def _get_boot_time():
    f = open('/proc/stat', 'r')
    try:
        for line in f:
            if line.startswith('btime'):
                return float(line.strip().split()[1])
        raise RuntimeError("line not found")
    finally:
        f.close()
unquote('%7e/abc+def') -> '~/abc def'
dataset/ETHPy150Open packages/psutil/psutil/_pslinux.py/_get_boot_time--crossover with--dataset/ETHPy150Open kleientertainment/ds_mod_tools/pkg/win32/Python27/Lib/urllib.py/unquote_plus