psutil

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#!/usr/bin/env python3
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# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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"""List all mounted disk partitions a-la "df -h" command.
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$ python3 scripts/disk_usage.py
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Device               Total     Used     Free  Use %      Type  Mount
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/dev/sdb3            18.9G    14.7G     3.3G    77%      ext4  /
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/dev/sda6           345.9G    83.8G   244.5G    24%      ext4  /home
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/dev/sda1           296.0M    43.1M   252.9M    14%      vfat  /boot/efi
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/dev/sda2           600.0M   312.4M   287.6M    52%   fuseblk  /media/Recovery
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"""
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import os
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import sys
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import psutil
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from psutil._common import bytes2human
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def main():
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    templ = "%-17s %8s %8s %8s %5s%% %9s  %s"
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    print(templ % ("Device", "Total", "Used", "Free", "Use ", "Type", "Mount"))
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    for part in psutil.disk_partitions(all=False):
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        if os.name == 'nt':
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            if 'cdrom' in part.opts or not part.fstype:
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                # skip cd-rom drives with no disk in it; they may raise
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                # ENOENT, pop-up a Windows GUI error for a non-ready
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                # partition or just hang.
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                continue
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        usage = psutil.disk_usage(part.mountpoint)
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        line = templ % (
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            part.device,
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            bytes2human(usage.total),
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            bytes2human(usage.used),
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            bytes2human(usage.free),
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            int(usage.percent),
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            part.fstype,
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            part.mountpoint,
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        )
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        print(line)
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if __name__ == '__main__':
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    sys.exit(main())
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