stressing.py

import os
import bpy
import csv
from mathutils import Vector

def set_keyframes(obj, loc_txt, quat_txt):
    obj.rotation_mode = 'QUATERNION'

    with open(loc_txt, 'r') as loc_fh:
        with open(quat_txt, 'r') as quat_fh:
            r_loc = csv.reader(loc_fh, delimiter=',')
            r_quat = csv.reader(quat_fh, delimiter=',')

            i = 0

            for row_loc in r_loc:
                row_quat = r_quat.__next__()
                row_loc = [ float(x.strip()) for x in row_loc[:3]]
                row_quat = [ float(x.strip()) for x in row_quat[:4]]

                fr = 10+2*i

                obj.location = Vector(row_loc) * 10
                obj.rotation_quaternion = row_quat
                obj.keyframe_insert(data_path="location", frame=fr)
                obj.keyframe_insert(data_path="rotation_quaternion", frame=fr)

                i += 1

#base_folder =  '/Users/sharonshorak/Desktop/ARYA_PYTHON'
base_folder = '/home/zeffii/Desktop/ARYA_PYTHON'  # < you just change this to the right path.
                                                  #  os.path.join  takes care of the forward slashes.        
positions = os.path.join(base_folder, 'xyzposition.csv')
quaternions = os.path.join(base_folder, 'quaternions.csv')

set_keyframes(bpy.context.active_object, positions, quaternions)