upload files to mega.nz using python (single file, directory, by extension)

uploadMega.py

from mega import Mega
import os

class UploadMega():
    def __init__(self, id, password):
        mega = Mega()
        self.mega = mega.login(id, password)
def upload_single_file(self, path):
    print("uploading :", path)
    self.mega.upload(path)
    print("uploaded :", path)

def upload_directory(self, path):
    files = os.listdir(path)
    for i in files:
        print("uploading :", i)
        self.mega.upload(os.path.join(path, i))
        print("uploaded :", i)

def upload_files_by_extension(self, path, extension):
    files = os.listdir(path)
    for i in files:
        if i.split(".")[-1] == extension:
            print("uploading :", i)
            self.mega.upload(os.path.join(path, i))
            print("uploaded :", i)