【Python】Seleniumとは？インストールから使い方まで徹底解説！

driver.get("https://www.example.com")

driver.close()  # 現在のタブを閉じる

driver.quit()  # すべてのタブとブラウザプロセスを終了

from selenium.webdriver.common.by import By
element = driver.find_element(By.ID, "username")

elements = driver.find_elements(By.CLASS_NAME, "item")

driver.execute_script("alert('Hello from Selenium!')")

driver.get_screenshot_as_file("screenshot.png")

cookies = driver.get_cookies()

driver.add_cookie({"name": "mycookie", "value": "abc123"})

driver.delete_all_cookies()

driver.back()
driver.forward()

driver.refresh()

driver.maximize_window()
driver.minimize_window()

driver.set_window_size(1024, 768)
driver.set_window_position(100, 200)

driver.switch_to.frame("iframe1")  # フレームに入る
driver.switch_to.default_content()  # フレームから出る

handles = driver.get_window_handles()
driver.switch_to.window(handles[1])  # 2つ目のタブへ

print(driver.title)
print(driver.current_url)

element = driver.find_element(By.ID, "submit-btn")
element.click()

form = driver.find_element(By.ID, "login-form")
form.submit()

input_box = driver.find_element(By.NAME, "username")
input_box.send_keys("admin123")

input_box.clear()

href = element.get_attribute("href")

custom_attr = element.get_dom_attribute("data-custom-id")

value = element.get_property("value")

if element.is_displayed():
    print("表示されています")

if element.is_enabled():
    print("操作可能です")

checkbox = driver.find_element(By.ID, "agree")
print(checkbox.is_selected())

element.screenshot("element.png")

table = driver.find_element(By.ID, "user-table")
row = table.find_element(By.TAG_NAME, "tr")

rows = table.find_elements(By.TAG_NAME, "tr")

color = element.value_of_css_property("color")

print(element.tag_name)  # 例: 'input'

print(element.text)

print(element.rect)  # {'height': 20, 'width': 100, 'x': 10, 'y': 50}

print(element.location)  # {'x': 10, 'y': 50}

print(element.size)  # {'width': 100, 'height': 20}

from selenium.webdriver.common.by import By
element = driver.find_element(By.ID, "login-button")

element = driver.find_element(By.NAME, "username")

element = driver.find_element(By.CLASS_NAME, "alert")

element = driver.find_element(By.TAG_NAME, "footer")

element = driver.find_element(By.LINK_TEXT, "お問い合わせ")

element = driver.find_element(By.PARTIAL_LINK_TEXT, "問い")

element = driver.find_element(By.CSS_SELECTOR, "div.alert > span.message")

element = driver.find_element(By.XPATH, "//div[@class='alert']/span")

# 例: ログインボタンをIDで取得してクリック
driver.find_element(By.ID, "login-btn").click()
# 例: フォーム入力
driver.find_element(By.NAME, "email").send_keys("user@example.com")
# 例: 複数要素取得
items = driver.find_elements(By.CLASS_NAME, "product-item")
# 例: CSSセレクタによる階層検索
driver.find_element(By.CSS_SELECTOR, "#main > ul > li:nth-child(2)")

from selenium.webdriver.chrome.options import Options

options = Options()
options.add_argument("--headless")
options.add_argument("--window-size=1280,800")

options.add_experimental_option("excludeSwitches", ["enable-automation"])
options.add_experimental_option("useAutomationExtension", False)

options.add_extension("/path/to/extension.crx")

with open("my_ext.crx", "rb") as f:
    encoded = f.read()
options.add_encoded_extension(encoded)

options.set_headless(True)  # ⚠️ 非推奨、--headless を add_argument で使うべき

options.set_capability("goog:loggingPrefs", {"performance": "ALL"})

caps = options.to_capabilities()
print(caps)

options.set_binary("/usr/bin/google-chrome-stable")

options.accept_insecure_certs = True

from selenium import webdriver
from selenium.webdriver.chrome.options import Options

options = Options()
options.add_argument("--headless")
options.add_argument("--disable-gpu")

driver = webdriver.Chrome(options=options)

from selenium.webdriver.chrome.service import Service as ChromeService

service = ChromeService(executable_path="/path/to/chromedriver", log_path="chrome.log")

service.start()
print(f"Service started at {service.service_url}")

service.stop()

if service.is_connectable():
    print("サービスに接続可能です")

try:
    service.assert_process_still_running()
except Exception as e:
    print("ドライバープロセスが停止しています", e)

args = service.command_line_args()
print("実行時引数:", args)

# 通常使用しません（例: テストや拡張時）
service.send_remote_shutdown_command()

from selenium import webdriver
from selenium.webdriver.chrome.service import Service as ChromeService

service = ChromeService(executable_path="/path/to/chromedriver")
driver = webdriver.Chrome(service=service)

driver.get("https://example.com")
driver.quit()

from selenium.webdriver.common.action_chains import ActionChains
actions = ActionChains(driver)
actions.click().perform()

element = driver.find_element(By.ID, "drag-item")
actions.click_and_hold(element).pause(1).release().perform()

element = driver.find_element(By.ID, "menu")
actions.context_click(element).perform()

element = driver.find_element(By.ID, "button")
actions.double_click(element).perform()

source = driver.find_element(By.ID, "item")
target = driver.find_element(By.ID, "dropzone")
actions.drag_and_drop(source, target).perform()

element = driver.find_element(By.ID, "item")
actions.drag_and_drop_by_offset(element, 100, 0).perform()

actions.move_by_offset(50, 100).click().perform()

element = driver.find_element(By.ID, "hover-item")
actions.move_to_element(element).perform()

actions.move_to_element_with_offset(element, 10, 10).click().perform()

from selenium.webdriver.common.keys import Keys
input_box = driver.find_element(By.ID, "input")
actions.key_down(Keys.SHIFT).send_keys("hello").key_up(Keys.SHIFT).perform()

actions.send_keys("Hello Selenium!").perform()

actions.pause(2).click(element).perform()

actions.click_and_hold(element).pause(1).release().perform()

actions.move_to_element(element).click().perform()

#ドラッグ＆ドロップ
actions.click_and_hold(source).move_to_element(target).release().perform()
#ホバーして表示されたメニューをクリック
actions.move_to_element(menu).click(sub_item).perform()

from selenium.webdriver.support.ui import Select

select_element = driver.find_element(By.ID, "dropdown")
select = Select(select_element)

select.select_by_value("python")

select.select_by_index(2)

select.select_by_visible_text("Java")

if select.is_multiple:
    select.deselect_all()

select.deselect_by_value("java")

select.deselect_by_index(0)

select.deselect_by_visible_text("Python")

for option in select.all_selected_options:
    print(option.text)

print(select.first_selected_option.text)

for option in select.options:
    print(option.get_attribute("value"))

if select.is_multiple:
    print("複数選択が可能なドロップダウンです")

# 複数選択可なselect要素
select = Select(driver.find_element(By.ID, "multi-select"))

select.select_by_visible_text("Option 1")
select.select_by_visible_text("Option 3")

select.deselect_by_visible_text("Option 1")

from selenium.webdriver.common.alert import Alert

alert = driver.switch_to.alert
alert.accept()

alert = driver.switch_to.alert
alert.dismiss()

alert = driver.switch_to.alert
alert.send_keys("Test input")
alert.accept()

alert = driver.switch_to.alert
print("アラートメッセージ:", alert.text)

# 確認ダイアログを開くような操作
driver.find_element(By.ID, "delete-btn").click()
# アラートへ切り替え
alert = driver.switch_to.alert
# メッセージ取得
print("確認メッセージ:", alert.text)
# OKをクリック（confirmを受け入れる）
alert.accept()

driver.find_element(By.ID, "prompt-btn").click()

alert = driver.switch_to.alert
alert.send_keys("Selenium User")
alert.accept()

from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC

WebDriverWait(driver, 10).until(EC.alert_is_present())
alert = driver.switch_to.alert
alert.accept()