TypeError: open() missing 1 required positional argument: 'self'

Question

from selenium import webdriver

class slorigen(object):
# 定义浏览器
  def __init__(self,brower):
      if brower == 'firefox' or brower =='Firefox' or brower == 'F' or brower == 'f':
          driver = webdriver.Firefox()
      elif brower == 'chrome' or brower == 'Chrome':
          driver = webdriver.Chrome()
      else :
          print("请使用火狐或谷歌浏览器")

 #打开网页
  def open(self, url):
    self.driver.get(url)  

引用该方法

from slconfig import slorigen

  if __name__ == '__main__':
    d = slorigen(brower='chrome')
    d = slorigen.open(url='http://www.baidu.com')

使用该方法时报错TypeError: open() missing 1 required positional argument: 'url'

Answer 1

d = slorigen(brower='chrome')
d.open(url='http://www.baidu.com')  # slorigen已经实例化为d了，所以调用d的open方法

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另外你的slorigen定义也有问题，没加self,driver就只是一个局部变量，用后即毁

class slorigen(object):
# 定义浏览器
  def __init__(self,brower):
      if brower == 'firefox' or brower =='Firefox' or brower == 'F' or brower == 'f':
          self.driver = webdriver.Firefox()                             ####
      elif brower == 'chrome' or brower == 'Chrome':
         self.driver = webdriver.Chrome()                             ####
      else : 
          print("请使用火狐或谷歌浏览器")
 
 #打开网页
  def open(self, url):
    self.driver.get(url)