PyGTasks.py

import os

from google.auth.transport.requests import Request
from google.oauth2.credentials import Credentials
from google_auth_oauthlib.flow import InstalledAppFlow
from googleapiclient.discovery import build


def authorize() : #認証を行う
    SCOPES = ['https://www.googleapis.com/auth/tasks']
    creds = None
    if os.path.exists('token.json') :
        creds = Credentials.from_authorized_user_file('token.json', SCOPES)
    if not creds or not creds.valid :
        if creds and creds.expired and creds.refresh_token :
            creds.refresh(Request())
        else :
            flow = InstalledAppFlow.from_client_secrets_file(
                'credentials.json', SCOPES)
            creds = flow.run_local_server(port=0)
        with open('token.json', 'w') as token :
            token.write(creds.to_json())
    return creds

def exist_lists(creds) :
    service = build('tasks', 'v1', credentials=creds)
    # Call the Tasks API
    results = service.tasklists().list(maxResults=10).execute()
    items = results.get('items', [])

    if not items :
        print('No task lists found.')
        return

    return items

def get_list(creds) : #タスクリストのIDと名前を取得する。返り値は辞書型。
    options = {}

    items = exist_lists(creds)

    for item in items :
        options.setdefault(item['title'], item['id'])

    return options

def get_tasks_in_tasklist(creds, tasklist) : #特定のタスクリストから未完了のタスクのみを取得する。返り値は辞書型。
    service = build('tasks', 'v1', credentials=creds)
    tasks = service.tasks().list(tasklist=tasklist).execute()
    options = {}
    #print(tasks)
    for task in tasks['items'] :
        if task['status'] != 'completed' and task['title']:
            options.setdefault(task['title'], task['id'])
            #print(task['title'])

    return options

def add_task(creds, tasklist, title, note) :
    service = build('tasks', 'v1', credentials=creds)
    task = {
        'title' : title,
        'notes' : note,
        'due' : ""
    }
    result = service.tasks().insert(tasklist=tasklist, body=task).execute() #tasklistはtasklistのid
    print(result)

def delete_task(creds, tasklist, task) :
    service = build('tasks', 'v1', credentials=creds)
    result = service.tasks().delete(tasklist=tasklist, task=task).execute() #tasklist, taskはそれぞれのid
    print(result)

def done_task(creds, tasklist, task_id) : #引数にタスクのidを渡し、statusをcompletedにする
    try:
        service = build('tasks', 'v1', credentials=creds)
        task = service.tasks().get(tasklist=tasklist, task=task_id).execute()
        task['status'] = 'completed'
        updated_task = service.tasks().update(tasklist=tasklist, task=task_id, body=task).execute()
        print(updated_task)

    except Exception as e:
        print('An error occurred:', str(e))