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Python3+Selenium环境配置-自动化测试

更新时间:2022-03-31 09:22:49 作者:多测师 浏览:125

  一、所需工具

  1、Python3.6安装包

  2、Selenium安装包(selenium-server-standalone-3.8),如果是Python3的话可以不用下载selenium压缩包,Python3有自带的,直接输入命令安装即可

  3、Chromedriver驱动(Chromedriver2.3)

  4、Firefox驱动(geckodriver0.18)

  5、Chrome浏览器(chrome v.59)

  6、Firefox浏览器(Firefox v.54)

  7、Pycharm

Python3+Selenium环境配置-自动化测试

  二、工具安装

  1、安装Python,安装完设置环境变量(将Python安装路径放入path下)

  2、selenium安装:cmd首先进入E:\Python\Scripts目录下,然后输入pip install -U selenium,等待安装完成即可

  3、pip安装:将pip工具包解压到指定盘,cmd命令进入该盘下,输入命令python setup.py install;再切换到E:\Python\Scripts 目录下输入E:\Python\Scripts > easy_install pip

  4、setuptools安装:将setuptools工具包解压到指定盘里,进入cmd,执行python ez_install.py即可

  5、将下载好的Chromedriver和geckodriver驱动放到Python安装路径下

  注意:Chromedriver和geckodriver驱动一定要和电脑上的浏览器版本对应,否则代码运行会报错

  Chromedriver和chrome浏览器对应版本

  代码:

from selenium import webdriver

import time

# browser=webdriver.Chrome()

browser=webdriver.Firefox()

url='http://www.baidu.com'

#通过get方法获取当前url打印

print("now access %s" %(url))

browser.get(url)

time.sleep(2)

browser.find_element_by_xpath("//input[@id='kw']").send_keys('Selenium')

browser.find_element_by_id('su').click()

# browser.find_element_by_css_selector("input[value$='下']")

time.sleep(3)

print("成功搜索")

browser.quit()

  以上代码如果能正常运行说明环境配置成功

  ps:

  以下三个问题是安装过程中常遇到的坑

  遇到第一个坑:'geckodriver' executable needs to be in PATH

  1.如果启动浏览器过程中报如下错误

Traceback (most recent call last):

File "<stdin>", line 1, in <module>

File "D:\test\python3\lib\site-packages\selenium\webdriver\firefox\webdriver.py", line 145, in __init__

self.service.start()

File "D:\test\python3\lib\site-packages\selenium\webdriver\common\service.py", line 81, in start

os.path.basename(self.path), self.start_error_message)

selenium.common.exceptions.WebDriverException: Message: 'geckodriver' executable needs to be in PATH.

  2.这个是因为最新的selenium3.0启动firefox需要geckodriver.exe这个驱动文件。

  3.下载之后,配置到环境变量path下(可以直接放python根目录)

  六、遇到第二坑:Expected browser binary location, but unable to find binary in default location

  1.如果启动浏览器过程中报如下错误

Traceback (most recent call last):

File "<stdin>", line 1, in <module>

File "D:\test\python3\lib\site-packages\selenium\webdriver\firefox\webdriver.py", line 155, in __init__

keep_alive=True)

File "D:\test\python3\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 92, in __init__

self.start_session(desired_capabilities, browser_profile)

File "D:\test\python3\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 179, in start_session

response = self.execute(Command.NEW_SESSION, capabilities)

File "D:\test\python3\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 238, in execute

self.error_handler.check_response(response)

File "D:\test\python3\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 193, in check_response

raise exception_class(message, screen, stacktrace)

selenium.common.exceptions.WebDriverException: Message: Expected browser binary location, but unable to find binary in default location, no 'moz:firefoxOptions.binary' capability provided, and no binary flag set on the command line

  2.这个是因为firefox.exe这个文件也需要配置到环境变量path下

  3.这个路径就是安装完firefox后,找到firefox.exe这个文件的地址,加到path下

  七、遇到第三坑:Unsupported Marionette protocol version 2, required 3

  1.如果启动浏览器过程中出现如下错误

Traceback (most recent call last):

File "<stdin>", line 1, in <module>

File "D:\test\python3\lib\site-packages\selenium\webdriver\firefox\webdriver.py", line 155, in __init__

keep_alive=True)

File "D:\test\python3\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 92, in __init__

self.start_session(desired_capabilities, browser_profile)

File "D:\test\python3\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 179, in start_session

response = self.execute(Command.NEW_SESSION, capabilities)

File "D:\test\python3\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 238, in execute

self.error_handler.check_response(response)

File "D:\test\python3\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 193, in check_response

raise exception_class(message, screen, stacktrace)

selenium.common.exceptions.WebDriverException: Message: Unsupported Marionette protocol version 2, required 3

  2.这个错误原因是firefox版本过低了,最新的selenium3.0版本支持firefox47以上的版本,升级版本就可以了。

以上内容为大家介绍了自动化测试中的Python3+Selenium环境配置,本文由多测师亲自撰写,希望对大家有所帮助。了解更多自动化测试相关知识:https://www.aichudan.com/xwzx/

一、所需工具

  1、Python3.6安装包

  2、Selenium安装包(selenium-server-standalone-3.8),如果是Python3的话可以不用下载selenium压缩包,Python3有自带的,直接输入命令安装即可

  3、Chromedriver驱动(Chromedriver2.3)

  4、Firefox驱动(geckodriver0.18)

  5、Chrome浏览器(chrome v.59)

  6、Firefox浏览器(Firefox v.54)

  7、Pycharm

  二、工具安装

  1、安装Python,安装完设置环境变量(将Python安装路径放入path下)

  2、selenium安装:cmd首先进入E:\Python\Scripts目录下,然后输入pip install -U selenium,等待安装完成即可

  3、pip安装:将pip工具包解压到指定盘,cmd命令进入该盘下,输入命令python setup.py install;再切换到E:\Python\Scripts 目录下输入E:\Python\Scripts > easy_install pip

  4、setuptools安装:将setuptools工具包解压到指定盘里,进入cmd,执行python ez_install.py即可

  5、将下载好的Chromedriver和geckodriver驱动放到Python安装路径下

  注意:Chromedriver和geckodriver驱动一定要和电脑上的浏览器版本对应,否则代码运行会报错

  Chromedriver和chrome浏览器对应版本

  代码:

from selenium import webdriver

import time

# browser=webdriver.Chrome()

browser=webdriver.Firefox()

url='http://www.baidu.com'

#通过get方法获取当前url打印

print("now access %s" %(url))

browser.get(url)

time.sleep(2)

browser.find_element_by_xpath("//input[@id='kw']").send_keys('Selenium')

browser.find_element_by_id('su').click()

# browser.find_element_by_css_selector("input[value$='下']")

time.sleep(3)

print("成功搜索")

browser.quit()

  以上代码如果能正常运行说明环境配置成功

  ps:

  以下三个问题是安装过程中常遇到的坑

  遇到第一个坑:'geckodriver' executable needs to be in PATH

  1.如果启动浏览器过程中报如下错误

Traceback (most recent call last):

File "<stdin>", line 1, in <module>

File "D:\test\python3\lib\site-packages\selenium\webdriver\firefox\webdriver.py", line 145, in __init__

self.service.start()

File "D:\test\python3\lib\site-packages\selenium\webdriver\common\service.py", line 81, in start

os.path.basename(self.path), self.start_error_message)

selenium.common.exceptions.WebDriverException: Message: 'geckodriver' executable needs to be in PATH.

  2.这个是因为最新的selenium3.0启动firefox需要geckodriver.exe这个驱动文件。

  3.下载之后,配置到环境变量path下(可以直接放python根目录)

  六、遇到第二坑:Expected browser binary location, but unable to find binary in default location

  1.如果启动浏览器过程中报如下错误

Traceback (most recent call last):

File "<stdin>", line 1, in <module>

File "D:\test\python3\lib\site-packages\selenium\webdriver\firefox\webdriver.py", line 155, in __init__

keep_alive=True)

File "D:\test\python3\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 92, in __init__

self.start_session(desired_capabilities, browser_profile)

File "D:\test\python3\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 179, in start_session

response = self.execute(Command.NEW_SESSION, capabilities)

File "D:\test\python3\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 238, in execute

self.error_handler.check_response(response)

File "D:\test\python3\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 193, in check_response

raise exception_class(message, screen, stacktrace)

selenium.common.exceptions.WebDriverException: Message: Expected browser binary location, but unable to find binary in default location, no 'moz:firefoxOptions.binary' capability provided, and no binary flag set on the command line

  2.这个是因为firefox.exe这个文件也需要配置到环境变量path下

  3.这个路径就是安装完firefox后,找到firefox.exe这个文件的地址,加到path下

  七、遇到第三坑:Unsupported Marionette protocol version 2, required 3

  1.如果启动浏览器过程中出现如下错误

Traceback (most recent call last):

File "<stdin>", line 1, in <module>

File "D:\test\python3\lib\site-packages\selenium\webdriver\firefox\webdriver.py", line 155, in __init__

keep_alive=True)

File "D:\test\python3\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 92, in __init__

self.start_session(desired_capabilities, browser_profile)

File "D:\test\python3\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 179, in start_session

response = self.execute(Command.NEW_SESSION, capabilities)

File "D:\test\python3\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 238, in execute

self.error_handler.check_response(response)

File "D:\test\python3\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 193, in check_response

raise exception_class(message, screen, stacktrace)

selenium.common.exceptions.WebDriverException: Message: Unsupported Marionette protocol version 2, required 3

  2.这个错误原因是firefox版本过低了,最新的selenium3.0版本支持firefox47以上的版本,升级版本就可以了。

  以上内容为大家介绍了自动化测试中的Python3+Selenium环境配置,本文由多测师亲自撰写,希望对大家有所帮助。了解更多自动化测试相关知识:https://www.aichudan.com/xwzx/

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