delete files

import os

path = os.path.join(os.path.abspath(os.path.dirname(__file__)), 'test.txt')
os.remove(path)

import os

path = os.path.join(os.path.abspath(os.path.dirname(__file__)), 'TestDir')
os.rmdir(path)

import os
import shutil

path = os.path.join(os.path.abspath(os.path.dirname(__file__)), 'TestDir')
shutil.rmtree(path)