在Linux中运行简单程序时出现Selenium错误

我对python和Linux也是新手。我尝试在python 3.7中安装selenium 但我得到了一个错误：

from selenium import webdriver

browser = webdriver.Firefox()

browser.get('http://www.ubuntu.com/')

输出

Traceback (most recent call last):
 File "test.py", line 1, in <module>
  from selenium import webdriver
 File "/usr/local/lib/python3.7/dist-packages/selenium/webdriver/__init__.py", line 18, in <module>
  from .firefox.webdriver import WebDriver as Firefox # noqa 
 File "/usr/local/lib/python3.7/dist-packages/selenium/webdriver/firefox/webdriver.py", line 29, in <module> 
  from selenium.webdriver.remote.webdriver import WebDriver as RemoteWebDriver
 File "/usr/local/lib/python3.7/dist-packages/selenium/webdriver/remote/webdriver.py", line 26, in <module> 
  from .webelement import WebElement 
 File "/usr/local/lib/python3.7/dist-packages/selenium/webdriver/remote/webelement.py", line 37, in <module> 
  from StringIO import StringIO as IOStream File 
 "/usr/lib/python3.7/StringIO.py", line 40 
  raise ValueError, "I/O operation on closed file" 
 ^ SyntaxError: invalid syntax

回溯（最近一次呼叫最后一次）：
文件“test.py”，第1行，在
从selenium导入webdriver
文件“/usr/local/lib/python3.7/dist-packages/selenium/webdriver/_init__.py”，第18行，在
从.firefox.webdriver将webdriver导入为firefox#noqa
文件“/usr/local/lib/python3.7/dist-packages/selenium/webdriver/firefox/webdriver.py”，第29行，在
从selenium.webdriver.remote.webdriver将webdriver作为RemoteWebDriver导入
文件“/usr/local/lib/python3.7/dist-packages/selenium/webdriver/remote/webdriver.py”，第26行，在
from.webelement导入webelement
文件“/usr/local/lib/python3.7/dist-packages/selenium/webdriver/remote/webelement.py”，第37行，在
从StringIO将StringIO导入为IOStream文件
“/usr/lib/python3.7/StringIO.py”，第40行
raise VALUE错误，“对关闭的文件执行I/O操作”
^SyntaxError:无效语法

您需要降级到python 3.6

或者，如果您没有gecko驱动程序，请执行以下步骤

wget https://github.com/mozilla/geckodriver/releases/download/v0.23.0/geckodriver-v0.23.0-linux64.tar.gz
sudo sh -c 'tar -x geckodriver -zf geckodriver-v0.23.0-linux64.tar.gz -O > /usr/bin/geckodriver'
sudo chmod +x /usr/bin/geckodriver
rm geckodriver-v0.23.0-linux64.tar.gz

---

您需要降级到python 3.6

或者，如果您没有gecko驱动程序，请执行以下步骤

wget https://github.com/mozilla/geckodriver/releases/download/v0.23.0/geckodriver-v0.23.0-linux64.tar.gz
sudo sh -c 'tar -x geckodriver -zf geckodriver-v0.23.0-linux64.tar.gz -O > /usr/bin/geckodriver'
sudo chmod +x /usr/bin/geckodriver
rm geckodriver-v0.23.0-linux64.tar.gz