ev3dev-lang-python: motor commands not working

I was testing some motor commands. run-direct command and run_direct() function work fine. However, run-to-abs-pos and run-timed commands, along with run_to_abs_pos() and run_timed() functions, are not in the mood to work. (They don’t throw any errors, they just do nothing).

These are my .py files. Hope I was using the functions properly.

#!/usr/bin/python

from ev3dev.auto import *

m = LargeMotor(OUTPUT_A)

m.position_sp = 360
m.run_to_abs_pos()

#!/usr/bin/python

from ev3dev.auto import *

m = LargeMotor(OUTPUT_A)

m.time_sp = 1000
m.run_timed()

Also, I don’t know how to use position_p attribute. It always comes with this error.

>>> m.position_p
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/python2.7/dist-packages/ev3dev/core.py", line 416, in position_p
    return self.get_attr_int('hold_pid/Kp')
  File "/usr/lib/python2.7/dist-packages/ev3dev/core.py", line 207, in get_attr_int
    return int(self._get_attribute(attribute))
  File "/usr/lib/python2.7/dist-packages/ev3dev/core.py", line 200, in _get_attribute
    return self._attribute_cache.read(abspath(self._path + '/' + attribute))
  File "/usr/lib/python2.7/dist-packages/ev3dev/core.py", line 85, in read
    return f.read().decode().strip()
IOError: [Errno 95] Operation not supported

Thank you!