This should make everything you asked:
import os
from collections import namedtuple
disk_ntuple = namedtuple('partition', 'device mountpoint fstype')
usage_ntuple = namedtuple('usage', 'total used free percent')
def disk_partitions(all=False):
"""Return all mountd partitions as a nameduple.
If all == False return phyisical partitions only.
"""
phydevs = []
f = open("/proc/filesystems", "r")
for line in f:
if not line.startswith("nodev"):
phydevs.append(line.strip())
retlist = []
f = open('/etc/mtab', "r")
for line in f:
if not all and line.startswith('none'):
continue
fields = line.split()
device = fields[0]
mountpoint = fields[1]
fstype = fields[2]
if not all and fstype not in phydevs:
continue
if device == 'none':
device = ''
ntuple = disk_ntuple(device, mountpoint, fstype)
retlist.append(ntuple)
return retlist
def disk_usage(path):
"""Return disk usage associated with path."""
st = os.statvfs(path)
free = (st.f_bavail * st.f_frsize)
total = (st.f_blocks * st.f_frsize)
used = (st.f_blocks - st.f_bfree) * st.f_frsize
try:
percent = ret = (float(used) / total) * 100
except ZeroDivisionError:
percent = 0
# NB: the percentage is -5% than what shown by df due to
# reserved blocks that we are currently not considering:
# http://goo.gl/sWGbH
return usage_ntuple(total, used, free, round(percent, 1))
if __name__ == '__main__':
for part in disk_partitions():
print part
print " %s\n" % str(disk_usage(part.mountpoint))
On my box the code above prints:
giampaolo@ubuntu:~/dev$ python foo.py
partition(device='/dev/sda3', mountpoint='/', fstype='ext4')
usage(total=21378641920, used=4886749184, free=15405903872, percent=22.9)
partition(device='/dev/sda7', mountpoint='/home', fstype='ext4')
usage(total=30227386368, used=12137168896, free=16554737664, percent=40.2)
partition(device='/dev/sdb1', mountpoint='/media/1CA0-065B', fstype='vfat')
usage(total=7952400384, used=32768, free=7952367616, percent=0.0)
partition(device='/dev/sr0', mountpoint='/media/WB2PFRE_IT', fstype='iso9660')
usage(total=695730176, used=695730176, free=0, percent=100.0)
partition(device='/dev/sda6', mountpoint='/media/Dati', fstype='fuseblk')
usage(total=914217758720, used=614345637888, free=299872120832, percent=67.2)