環境は整った？

from selenium import webdriver
driver = webdriver.Chrome()
driger.implisitly_wait(3)
driver.get('https://www.library.chiyoda.tokyo.jp/')

schedule_el = driver.find_elements_by_class_name('schedule-list01__text')
print([s.text for s in schedule_el])

かと思ったので上記のコードをjupyterlabで動かしてみた。

ModuleNotFoundError: No module named 'selenium'

あちゃ。
selenium入れなきゃダメじゃん。

!pip install selenium

としたら以下のエラーメッセージ
ERROR: Cannot uninstall 'certifi'. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall.

なかなかやるな。
ここでエラーメッセージコピペでgoogle先生に登場してもらう。

先生！お願いします。

ウム。

!pip install label-studio

ERROR: Cannot uninstall 'PyYAML'. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall.

せ、せんせい！

!pip install label-studio --ignore-installed certifi

ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
tables 3.5.1 requires mock>=2.0, which is not installed.
astroid 2.2.5 requires typed-ast>=1.3.0; implementation_name == "cpython", which is not installed.

!pip check

tables 3.5.1 requires mock, which is not installed.
spyder 3.3.3 requires pyqt5, which is not installed.
astroid 2.2.5 requires typed-ast, which is not installed.

ちゅーわけで、それぞれインストール

!pip install mock

Successfully installed mock-5.0.1

!pip install pyqt5

ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
spyder 3.3.3 requires pyqt5<=5.12; python_version >= "3", but you have pyqt5 5.15.9 which is incompatible.

またエラーでやんす。

!pip install --upgrade --user pyqt5==5.12

Successfully installed PyQt5_sip-4.19.19 pyqt5-5.12

!pip install typed-ast

Successfully installed typed-ast-1.5.4

んで、もう一回

!pip install label-studio --ignore-installed certifi
!pip install label-studio
!pip install selenium

これでエラーは排除できたっぽい。
また一番上のコードを実行すると…

WebDriverException: Message: Service chromedriver unexpectedly exited. Status code was: 127

きたーーー！127
chromedriverがみつからないってやつ。

原因は
chromedriverのパスが通ってない。
chromedriverのバージョンがブラウザのバージョンと違っている。

あたりらしいです。それでもエラー出るなら
前々回に書いたライブラリのインストール。

これで行こう。
ということで、また。