Categories: Python | Code Examples | Files/Data

This page was last modified 09:34, 23 August 2008.

From Forum Nokia Wiki

drivespace.py

Python Sample code for S60 mobile devices to show available drive space

To use this utility first download and install python for S60 1.4.1 to your mobile device:

[[1]]

Program output:

Available Drive Space:

User      C:   114.1 MB Free

System  D:    78.9 MB Free

User      E:   990.4 MB Free

Install:

1. Create a Python directory on your mobile device E:Python.

2. Save the code below with a text editor.

3. Using a USB cable connect to PC Suite Phone Browser and open the Python directory.

4. Drag and Drop drivespace.py into the mobile Python directory "Nokia Phone Browser\Nokia N95\Memory Card\Python"

# Example using sysinfo to show available
# drive space in MB on a S60 mobile device
# For Python 1.4.1
import sysinfo
#
#drives is a Dictionary datatype
drives = sysinfo.free_drivespace()
#
# print drives
# {u'C:': 119627776,u'D:': 79310848,u'Z:': 0,u'E:': 2087256064}
# drives = {‘key1’: ‘value1’, ‘key2’: ‘value2’, ‘key3’: ‘value3’, ‘key4’: ‘value4’} 
#
# Do some formatting for pretty output
print ''
print 'Available Drive Space:'
print ''
print 'User %8s %8.1f MB Free' % ('C: ', ((drives['C:'])/(1024*1024.0)) )
print 'System %4s %8.1f MB Free' % ('D: ', ((drives['D:'])/(1024*1024.0)) )
print 'User %8s %8.1f MB Free' % ('E: ', ((drives['E:'])/(1024*1024.0)) )
print ''

Notes:

Using the Python Dictionary datatype:

   drives = {‘key1’: ‘value1’, ‘key2’: ‘value2’, ‘key3’: ‘value3’, ‘key4’: ‘value4’}

   print sysinfo.free_drivespace()
   {u'C:': 119627776,u'D:': 79310848,u'Z:': 0,u'E:': 2087256064}

   The u before the drive u’C:’ identifies this as a unicode string.

In this example ‘C:’ is the read write user storage on the device. ‘D:’ is the system RAM and ‘E:’ is the memory card. There is also a ‘Z:’ drive for ROM memory but an unsigned python application cannot access the information for this drive so it returns 0.

To access the drive information as a python dictionary type we assign “drives” to the
sysinfo result:

   drives = sysinfo.free_drivespace()

Modify and format the result in MB:

   print "User C: %0.1f MB Available" % (drives['C:'])/(1024*1024.0))