Python入門
WEBスクレイピング（selenium）

import time
from selenium import webdriver
import chromedriver_binary
driver = webdriver.Chrome()
driver.get("https://www.yahoo.co.jp/")
driver.find_element_by_css_selector("#tabTopics2 > a").click()
time.sleep(5)

import time
from selenium import webdriver
import chromedriver_binary
driver = webdriver.Chrome()
driver.get("https://www.yahoo.co.jp/")
elm = driver.find_element_by_css_selector("#tabTopics2 > a")
elm.click()
time.sleep(5)

from selenium import webdriver
import chromedriver_binary
driver = webdriver.Chrome()
driver.get("https://www.yahoo.co.jp/")
driver.find_element_by_css_selector("#tabTopics2 > a").click()
elm = driver.find_element_by_css_selector("#tabpanelTopics2 > div > div:nth-child(2) > div > div > a:nth-child(1) > div._1MotBVaN8-ZbqGA2Wc3v-R > span > span._1Cr2FsRZgNQlia2CFSRBBG")
print(elm.text)
driver.quit()

elm = driver.find_element_by_css_selector("span._1Cr2FsRZgNQlia2CFSRBBG")

import time
from selenium import webdriver
import chromedriver_binary
from selenium.webdriver.support.ui import Select

def wait_for_element(a_driver, kind, a_str, max_cnt=10):
    for n in range(max_cnt):
        try: #とりあえず必要なもののみ入れました。
            if kind == "css":
                elm = a_driver.find_element_by_css_selector(a_str)
            elif kind == "id":
                elm = a_driver.find_element_by_id(a_str)
            elif kind == "name":
                elm = a_driver.find_element_by_name(a_str)
            elif kind == "link":
                elm = a_driver.find_element_by_link_text(a_str)
            else:
                raise ValueError("パラメーター不正")
        except:
            time.sleep(1)
        else:
            return elm
    raise ValueError(f"{kind}:{a_css}:要素が見つかりません。")

def wait_for_sendkeys(a_elm, a_str, max_cnt=10):
    for n in range(max_cnt):
        try:
            a_elm.clear()
            a_elm.send_keys(a_str)
        except:
            time.sleep(1)
        else:
            return
    raise ValueError(f"send_keys:{a_str} テキストを送れませんでした。")

driver = webdriver.Chrome()
driver.get("https://www.yahoo.co.jp/")

#「経済」
driver.find_element_by_css_selector("#tabTopics2 > a").click()

#「日経平均株価」
driver.find_element_by_css_selector("span._1Cr2FsRZgNQlia2CFSRBBG").click()

#「銘柄コード」
elm = wait_for_element(driver, "id", "searchText")
wait_for_sendkeys(elm, "4689")

#「株価検索」
driver.find_element_by_id("searchButton").click()

#「アラート」
wait_for_element(driver, "link", "アラート設定").click()

#「ID」入力
elm = wait_for_element(driver, "name", "login")
wait_for_sendkeys(elm, "IDを指定")

#「次へ」
wait_for_element(driver, "name", "btnNext").click()

#「パスワード」入力：そのまま続けるとエラーとなるのでWait対応<br>
elm = wait_for_element(driver, "id", "passwd")
wait_for_sendkeys(elm, "パスワードを指定")

#「次へ」
wait_for_element(driver, "css", "#btnSubmit > span").click()

#「値上がり率」を15%
elm = wait_for_element(driver, "id", "up_0")
sel_elm = Select(elm)
sel_elm.select_by_value("15")

#登録しても仕方ないので、画面を見て確認してください。
time.sleep(30)

from selenium import webdriver
import chromedriver_binary

driver = webdriver.Chrome()
driver.get("https://yahoo.co.jp")
elms = driver.find_element_by_css_selector("#tabpanelTopics1")
for elm in elms.find_elements_by_tag_name("h1"):
    print(elm.text)

from selenium import webdriver
import chromedriver_binary

driver = webdriver.Chrome()
driver.get("https://excel-ubara.com/python/python025.html")
driver.find_element_by_link_text("第24回.エクセルを操作する（openpyxl）").click()
elm = driver.find_element_by_tag_name("h1")
print(elm.text)
driver.quit()

from selenium import webdriver
import chromedriver_binary

driver = webdriver.Chrome()
driver.get("https://excel-ubara.com/python/python025.html")
driver.find_element_by_link_text("第24回.エクセルを操作する（openpyxl）").click()
whandles = driver.window_handles
driver.switch_to.window(whandles[-1])
elm = driver.find_element_by_tag_name("h1")
print(elm.text)
driver.quit()