python e.py Traceback (most recent call last): File "e.py", line 2, in from selenium import webdriver ImportError: No module named selenium

$python e.py 

Traceback (most recent call last):

  File "e.py", line 2, in <module>

    from selenium import webdriver

ImportError: No module named selenium

解決：安裝selenium模塊

$ python -m pip install -U selenium

DEPRECATION: Python 2.7 reached the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 is no longer maintained. pip 21.0 will drop support for Python 2.7 in January 2021. More details about Python 2 support in pip, can be found at https://pip.pypa.io/en/latest/development/release-process/#python-2-support

Defaulting to user installation because normal site-packages is not writeable

Collecting selenium

  WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ReadTimeoutError("HTTPSConnectionPool(host='files.pythonhosted.org', port=443): Read timed out. (read timeout=15)",)': /packages/80/d6/4294f0b4bce4de0abf13e17190289f9d0613b0a44e5dd6a7f5ca98459853/selenium-3.141.0-py2.py3-none-any.whl

  Downloading selenium-3.141.0-py2.py3-none-any.whl (904 kB)

     |████████████████████████████████| 904 kB 23 kB/s 

Requirement already satisfied, skipping upgrade: urllib3 in /Library/Python/2.7/site-packages (from selenium) (1.25.9)

Installing collected packages: selenium

Successfully installed selenium-3.141.0

結束。