Hey I am trying to write a programme in python HELP?

Question

hopefully when its done it will eject my dvd drive and then wait say 15 - 20 seconds while i put some thing in then close the drive
and maybe open a windows displaying whats on it .
a friend gave me this a a while ago but i cant make it work

i dont have much experance with python and i think i needto down load the modules mention in the fisrt few lines of code where would i get these please
TIA





import os, time
try:
import win32file, win32api
from win32con import *
except ImportError:
print "The WinCDROM module requires the Python Win32 extensions."
raise

class Cdrom:
'''Controls for loading,ejecting, and reading cds on Win32 platforms.'''

def __init__(self, drive=None, timeout=20):
'''Accepts a cd drive letter. For example 'E:' or 'e'.'''
self.drives = []
try:
self.drive = drive[:1].upper()
except TypeError:
self.drive = ''
self.getDrives()
self.timeout = timeout

def __getDeviceHandle(self, drive=''):
'''Returns a properly formatted device handle for DeviceIOControl call.'''
drive = drive[:1]
return "\\\\.\\%s:" % drive.upper()

def __is_cd_inserted(self, drive=''):
try:
x = win32api.GetVolumeInformation(drive)
#print "CD is inserted in drive %s" % drive
return 1
except:
#print "no CD inserted in drive %s" % drive
return 0

def getDrives(self):
'''Assign all available cd drives to self.drives. If CdRom.drive
is not already set the first drive returned becomes the default.
'''
letters = [l.upper() + ':' for l in 'abcdefghijklmnopqrstuvwxyz']
for drive in letters:
if win32file.GetDriveType(drive)==5:
self.drives.append(drive)
if not self.drive:
self.drive = self.drives[0]

def load(self, drive=''):
'''Closes cd drive door and waits until cd is readable.'''
drive = drive or self.drive
device = self.__getDeviceHandle(drive)
hdevice = win32file.CreateFile(device, GENERIC_READ,
FILE_SHARE_READ, None, OPEN_EXISTING, 0, 0)
win32file.DeviceIoControl(hdevice,2967564,"", 0, None)
win32file.CloseHandle(hdevice)
# Poll drive for loaded and give up after timeout period
i=0
while i < 20:
if self.__is_cd_inserted(drive) == 1:
return 1
else:
time.sleep(1)
i = i+1
return 0

def eject(self, drive=''):
'''Opens the cd drive door.'''
drive = drive or self.drive
device = self.__getDeviceHandle(drive)
hdevice = win32file.CreateFile(device, GENERIC_READ,
FILE_SHARE_READ, None, OPEN_EXISTING, 0, 0)
win32file.DeviceIoControl(hdevice,2967560,"", 0, None)
win32file.CloseHandle(hdevice)

def close(self, drive=''):
'''Closes the cd drive door.'''
drive = drive or self.drive
device = self.__getDeviceHandle(drive)
hdevice = win32file.CreateFile(device, GENERIC_READ,
FILE_SHARE_READ, None, OPEN_EXISTING, 0, 0)
win32file.DeviceIoControl(hdevice,2967564,"", 0, None)
win32file.CloseHandle(hdevice)

if __name__ == '__main__':
cd = Cdrom(timeout=5)
print "Running WinCDRom tests"; print
print "Listing drives:"; print
print cd.drives; print
print "Default drive: %s" % cd.drive; print
print "Opening drive door..."
cd.eject(); print
import time; time.sleep(2)
print "Closing cd drive door... (CD read attempt will time out at %s seconds.)" % cd.timeout
print
if cd.load() == 1:
print "Loaded cd successfully in drive %s" % cd.drive
print
else:
print "Unable to load cd."
print "If you have a slower drive try increasing the 'timeout' parameter."
print
print "WinCDRom Tests completed."

Answer 1

No, the modules mentioned are included in the standard Python distribution, assuming you already have that.



I don't know if the code you've pasted here is exactly the code you're trying to run, but if so the problem is that white space is significant in Python. That is, you need indents (spaces or tabs) after lines with class, def, try, for, if, etc - the code simply won't work without them, unlike say C or Javascript where the white space is optional or just used for readability.



I'd recommend you go back to where you got the code and download it again, this time preserving the indents.

Answer 2

ask Monty-

sorry bad gag just to cheer you up!

Answer 3

http://bytes.com/forum/thread588583.html

or www.python.org



Good luck