【Python】メルカリの自動コメントツールを作成したので解説！

import logging
import platform
import pyperclip
import random
import time
from functools import wraps
from selenium import webdriver
from selenium.webdriver.chrome.options import Options
from selenium.webdriver.common.by import By
from selenium.webdriver.common.keys import Keys

options = Options()
options.add_argument("--user-data-dir=/Users/izumikohei/Library/Application Support/Google/Chrome/UserData")
driver = webdriver.Chrome(options=options)
driver.implicitly_wait(10)

logging.basicConfig(
    level=logging.INFO,
    format="%(asctime)s %(levelname)s %(message)s",
    datefmt="%Y/%m/%d %H:%M:%S"
)
logger = logging.getLogger(__name__)

def sleep(min=2, max=5):
    time.sleep(random.uniform(min, max))

def sleep_after_execution(min=2, max=5):
    def decorator(func):
        @wraps(func)
        def wrapper(*args, **kwargs):
            result = func(*args, **kwargs)
            sleep(min, max)
            return result
        return wrapper
    return decorator

@sleep_after_execution()
def open_site():
    driver.get("https://jp.mercari.com/mypage/listings")

def get_hrefs():
    hrefs = []

    hrefs_elem = driver.find_elements(By.CSS_SELECTOR, "#currentListing > div > div > div > a")
    for elem in hrefs_elem:
        href = elem.get_attribute("href")
        hrefs.append(href)
    
    return hrefs

@sleep_after_execution(30, 50)
def open_item_page(href):
    driver.get(href)

@sleep_after_execution()
def scroll_to_comment():
    comment_textarea = driver.find_element(By.XPATH, "//textarea[@name='comment']")
    driver.execute_script("arguments[0].scrollIntoView();", comment_textarea)

@sleep_after_execution()
def set_comment(comment):
    pyperclip.copy(comment)
    
    textarea = driver.find_element(By.XPATH, "//textarea[@name='comment']")
    textarea.click()
    textarea.send_keys(Keys.COMMAND if platform.system() == "Darwin" else Keys.CONTROL, 'v')

@sleep_after_execution()
def click_post_comment_button():
    driver.find_element(By.XPATH, "//div[@data-partner-id='post-comment']/button").click()

import mercari_common as common
import tkinter as tk

driver = common.driver
logger = common.logger

def main(comment):
    try:
        logger.info("処理開始")

        common.open_site()
        hrefs = common.get_hrefs()

        for count, href in enumerate(hrefs, start=1):
            logger.info(f"{len(hrefs)}件中{count}件目のセール中...")

            common.open_item_page(href)
            common.scroll_to_comment()
            common.set_comment(comment)
            common.click_post_comment_button()

        logger.info("処理終了")
    except Exception as e:
        logger.error(f"予期せぬエラーが発生しました: {e}")
    finally:
        driver.quit()

if __name__ == "__main__":
    root = tk.Tk()
    root.geometry('1200x1200')
    root.title('メルカリコメントツール')

    tk.Label(root, text="コメント").grid(row=0, column=0, padx=10, pady=5)
    comment_input = tk.Text(root)
    comment_input.grid(row=0, column=1, padx=10, pady=5)

    button = tk.Button(root, text="実行", command=lambda: main(comment_input.get(0., tk.END)))
    button.grid(row=1, columnspan=2, pady=10)

    root.mainloop()