The well know way of changing name of process in C is changing the argv value. But, that wont work in python.
To change the process name is python, you have no other way but to load the shared C library and call its function. Well, to do so, we are provided with ctypes in python.
Here is the function which will takes its argument as the new name. I used "man prctl" & content of this "/usr/include/linux/prctl.h"
def set_procname(newname): from ctypes import cdll, byref, create_string_buffer libc = cdll.LoadLibrary('libc.so.6') #Loading a 3rd party library C buff = create_string_buffer(len(newname)+1) #Note: One larger than the name (man prctl says that) buff.value = newname #Null terminated string as it should be libc.prctl(15, byref(buff), 0, 0, 0) #Refer to "#define" of "/usr/include/linux/prctl.h" for the misterious value 16 & arg[3..5] are zero as the man page says.
All the relevant documentation is available here http://docs.python.org/library/ctypes.html & rest is written as comments..