diff -r 000000000000 -r 6474c204b198 python/psutil/examples/disk_usage.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/python/psutil/examples/disk_usage.py	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,50 @@
+#!/usr/bin/env python
+
+# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""
+List all mounted disk partitions a-la "df -h" command.
+"""
+
+import sys
+import os
+import psutil
+from psutil._compat import print_
+
+def bytes2human(n):
+    # http://code.activestate.com/recipes/578019
+    # >>> bytes2human(10000)
+    # '9.8K'
+    # >>> bytes2human(100001221)
+    # '95.4M'
+    symbols = ('K', 'M', 'G', 'T', 'P', 'E', 'Z', 'Y')
+    prefix = {}
+    for i, s in enumerate(symbols):
+        prefix[s] = 1 << (i+1)*10
+    for s in reversed(symbols):
+        if n >= prefix[s]:
+            value = float(n) / prefix[s]
+            return '%.1f%s' % (value, s)
+    return "%sB" % n
+
+
+def main():
+    templ = "%-17s %8s %8s %8s %5s%% %9s  %s"
+    print_(templ % ("Device", "Total", "Used", "Free", "Use ", "Type", "Mount"))
+    for part in psutil.disk_partitions(all=False):
+        if os.name == 'nt' and 'cdrom' in part.opts:
+            # may raise ENOENT if there's no cd-rom in the drive
+            continue
+        usage = psutil.disk_usage(part.mountpoint)
+        print_(templ % (part.device,
+                        bytes2human(usage.total),
+                        bytes2human(usage.used),
+                        bytes2human(usage.free),
+                        int(usage.percent),
+                        part.fstype,
+                        part.mountpoint))
+
+if __name__ == '__main__':
+    sys.exit(main())