def get_printers():
'''Return a set of HardwareIDs for connected printers.'''
if get_printers.cache is not None:
return get_printers.cache
get_printers.cache = set()
try:
import cups
import cupshelpers
except ImportError:
logging.warning('cups and/or cupshelpers Python modules are not present; printer detection is not available')
return get_printers.cache
try:
for dev in cupshelpers.getDevices(cups.Connection()).itervalues():
# openprinting.org database only uses MFG, MDL, DES, and CMD, so don't
# send the rest (it might contain personal data such as serial numbers)
if dev.id_dict.get('MFG') and dev.id_dict.get('MDL'):
id = 'MFG:%s;MDL:%s;' % (dev.id_dict['MFG'], dev.id_dict['MDL'])
if dev.id_dict.get('DES'):
id += 'DES:' + dev.id_dict['DES'] + ';'
if dev.id_dict.get('CMD'):
id += 'CMD:' + ','.join(dev.id_dict['CMD']) + ';'
_get_printers.cache.add(HardwareID('printer_deviceid', id))
except (RuntimeError, cups.IPPError):
logging.warning('cannot connect to cups; printer detection is not available')
return set()
return get_printers.cache
def get_printers():
'''Return a set of HardwareIDs for connected printers.'''
if get_printers.cache is not None:
return get_printers.cache
get_printers.cache = set()
try:
import cups
import cupshelpers
except ImportError:
logging.warning(
'cups and/or cupshelpers Python modules are not present; printer detection is not available'
)
return get_printers.cache
try:
for dev in cupshelpers.getDevices(cups.Connection()).itervalues():
# openprinting.org database only uses MFG, MDL, DES, and CMD, so don't
# send the rest (it might contain personal data such as serial numbers)
if dev.id_dict.get('MFG') and dev.id_dict.get('MDL'):
id = 'MFG:%s;MDL:%s;' % (dev.id_dict['MFG'],
dev.id_dict['MDL'])
if dev.id_dict.get('DES'):
id += 'DES:' + dev.id_dict['DES'] + ';'
if dev.id_dict.get('CMD'):
id += 'CMD:' + ','.join(dev.id_dict['CMD']) + ';'
_get_printers.cache.add(HardwareID('printer_deviceid', id))
except (RuntimeError, cups.IPPError):
logging.warning(
'cannot connect to cups; printer detection is not available')
return set()
return get_printers.cache
mfgcmp = cmp(our_mfg.lower(), other_mfg.lower())
if mfgcmp != 0:
return mfgcmp
mdlcmp = cmp(our_mdl.lower(), other_mdl.lower())
if mdlcmp != 0:
return mdlcmp
if self.sn == '' or other.sn == '':
return 0
return cmp(self.sn, other.sn)
if __name__ == '__main__':
import authconn
c = authconn.Connection()
devices = cupshelpers.getDevices(c)
physicaldevices = []
for device in devices.values():
physicaldevice = PhysicalDevice(device)
try:
i = physicaldevices.index(physicaldevice)
physicaldevices[i].add_device(device)
except ValueError:
physicaldevices.append(physicaldevice)
physicaldevices.sort()
for physicaldevice in physicaldevices:
print physicaldevice.get_info()
devices = physicaldevice.get_devices()
for device in devices:
if our_mfg != other_mfg:
return our_mfg < other_mfg
if our_mdl != other_mdl:
return our_mdl < other_mdl
if self.sn == '' or other.sn == '':
return False
return self.sn < other.sn
if __name__ == '__main__':
import authconn
c = authconn.Connection ()
devices = cupshelpers.getDevices (c)
physicaldevices = []
for device in devices.values ():
physicaldevice = PhysicalDevice (device)
try:
i = physicaldevices.index (physicaldevice)
physicaldevices[i].add_device (device)
except ValueError:
physicaldevices.append (physicaldevice)
physicaldevices.sort ()
for physicaldevice in physicaldevices:
print(physicaldevice.get_info ())
devices = physicaldevice.get_devices ()
for device in devices:
