Set Smooth CPUs Priority and set Process Name. Linux only.

smooth_cpu_process_name.py

#!/usr/bin/env python3
# -*- coding: utf-8 -*-


import os
import logging as log
from ctypes import byref, cdll, create_string_buffer


def set_process_name_and_cpu_priority(name):
    """Set process name and cpu priority.

    >>> set_process_name_and_cpu_priority("test_test")
    True
    """
    try:
        os.nice(19)  # smooth cpu priority
        libc = cdll.LoadLibrary("libc.so.6")  # set process name
        buff = create_string_buffer(len(name.lower().strip()) + 1)
        buff.value = bytes(name.lower().strip().encode("utf-8"))
        libc.prctl(15, byref(buff), 0, 0, 0)
    except Exception:
        return False  # this may fail on windows and its normal, so be silent.
    else:
        log.debug("Process Name set to: {0}.".format(name))
        return True


if __name__ in '__main__':
    log.basicConfig(level=-1)  # basic logger
    set_process_name_and_cpu_priority("your_app_name_here")
    __import__("doctest").testmod(verbose=True, report=True, exclude_empty=1)

Instead of python file.py on the Process List will appear as your_app_name_here

juan@z:~$ python2 temp.py 

Process Name set to: your_app_name_here.
Simulating App running, check System Monitor to see process name.
Trying:
    set_process_name_and_cpu_priority("test_test")
Expecting:
    True
DEBUG:root:Process Name set to: test_test.
ok
1 items passed all tests:
   1 tests in __main__.set_process_name_and_cpu_priority
1 tests in 1 items.
1 passed and 0 failed.
Test passed.

juan@z:~$ python3 temp.py

Process Name set to: your_app_name_here.
Simulating App running, check System Monitor to see process name.
Trying:
    set_process_name_and_cpu_priority("test_test")
Expecting:
    True
DEBUG:root:Process Name set to: test_test.
ok
1 items passed all tests:
   1 tests in __main__.set_process_name_and_cpu_priority
1 tests in 1 items.
1 passed and 0 failed.
Test passed.

juan@z:~$

Note:

• Edit the string "your_app_name_here" with the App name.
• libc.so.6 is NOT a file path, is a Lib Name.
• try: ... except: is needed because the code block is expected to fail on MS Window, and thats Ok.