traceback.format_exc

Print traceback information:

#!/usr/bin/env python

import traceback
import PyTango

def func( mot):
    try:
        p = PyTango.DeviceProxy( mot)
    except Exception as e:
        print(traceback.format_exc())
        return 
    print( "pos", p.position)
    return 

if __name__ == "__main__":
    func( "d1_mot_notExist")

The output:

$ python pTest.py 
Traceback (most recent call last):
  File "pTest.py", line 8, in func
    p = PyTango.DeviceProxy( mot)
  File "/usr/lib/python2.7/dist-packages/tango/device_proxy.py", line 172, in __DeviceProxy__init__
    return DeviceProxy.__init_orig__(self, *args, **kwargs)
DevFailed: DevFailed[
DevError[
    desc = device d1_mot_notexist not defined in the database !
  origin = DataBase::ImportDevice()
  reason = DB_DeviceNotDefined
severity = ERR]

DevError[
    desc = Failed to execute command_inout on device sys/database/2, command DbImportDevice
  origin = Connection::command_inout()
  reason = API_CommandFailed
severity = ERR]

DevError[
    desc = Can't connect to device d1_mot_notexist
  origin = DeviceProxy::DeviceProxy
  reason = API_DeviceNotDefined
severity = ERR]
]