Centos7 install python3 + selenium + chrome + chromedriver

. Weiyang 2020-11-10 14:21:39
centos7 centos install python3 python


Centos7 install python3+Selenium+chrome+chromedriver detailed
python2 and python3 coexistence ,Selenium Wrong handling
to update Centos Source

wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
perhaps
curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
# After downloading , Run the following command :
yum clean all
yum makecache

 

1.Python3 Installation and python2 coexistence

wget http://mirrors.sohu.com/python/3.6.2/Python-3.6.2.tar.xz
yum install libffi-devel expat-devel gdbm-devel zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gcc make
mv /usr/bin/python /usr/bin/python.bak
tar -xvJf  Python-3.6.2.tar.xz
cd Python-3.6.2
./configure prefix=/usr/local/python3
make && make install
make clean
ln -s /usr/local/python3/bin/python3 /usr/bin/python

 

python -V Check to see if python3
python2 -V Check to see if python2
If it's normal to see , Please continue to set .yum need python2 edition , So we have to modify yum Configuration of ./usr/libexec/urlgrabber-ext-down It also needs to be modified python2

vi /usr/bin/yum
# Put the first line of the document python Change to python2

#!/usr/bin/python2                                                                          
import sys                                                                                  
try:                                                                                        
    import yum                                                                              
except ImportError:

...... Continue to modify urlgrabber-ext-down
vi /usr/libexec/urlgrabber-ext-down
# Change the first line as above python Change to python2

#! /usr/bin/python2                                                                         
#  A very simple external downloader                                                        
#  Copyright 2011-2012 Zdenek Pavlas

 

python2 and python3 coexistence : Default pip yes python2,python3 How to configure ? If pip It's not installed either , Just install pip

yum -y install epel-release
yum install python-pip

ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3

 

To configure pip Source according to their own needs , Or not

mkdir ~/.pip
vi pip.conf

[global]
timeout = 60
index-url = https://pypi.doubanio.com/simple

 

2.chrome Installation and chromedriver download
chrome Download and install

yum install https://dl.google.com/linux/direct/google-chrome-stable_current_x86_64.rpm

   

chromedriver download , I downloaded the latest version .chrome It's also the latest version

https://npm.taobao.org/mirrors/chromedriver/2.40/chromedriver_linux64.zip

chromedriver Download and copy , To /usr/local/bin/ Under the table of contents , And give executable rights : chmod -R 744 /usr/local/bin/chromedriver

Otherwise, when you run or restart a program , It's easy to report mistakes :selenium.common.exceptions.WebDriverException: Message: 'chromedriver' executable needs to be in PATH

   

3. install selenium, Use yes python3

pip3 install selenium

   

Beginning of the test :
Create a name for test Catalog , The directory structure is as follows :

[root@localhost test]# tree                                                         
├── chromedriver
└── test.py

 

test.py The test code is as follows :chrome Interface browsing

# -*- coding:utf-8 -*-

from selenium import webdriver

options = webdriver.ChromeOptions()
options.add_argument('--headless')
options.add_argument('--disable-gpu')
driver = webdriver.Chrome(executable_path="/root/test/chromedriver", chrome_options=options)
driver.get("https://www.baidu.com")
print(driver.page_source)
driver.quit()

 

Test run to see

python test.py

   

After running, report error decisively

 raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.WebDriverException: Message: unknown error: DevToolsActivePort file doesn't exist

 

modify test.py add –no-sandbox Perfect solution . Of course use selenium There may be other mistakes , I'll collect some error fixes in other articles .


from selenium import webdriver

options = webdriver.ChromeOptions()

# Server does not need --    windows Next need --
options.add_argument(' headless')
options.add_argument(' no-sandbox')

driver = webdriver.Chrome(executable_path='/usr/local/bin/chromedriver',chrome_options=options)
driver.get("https://www.baidu.com")

print(driver.page_source)
print(driver.title)
driver.close()

 

reference https://blog.csdn.net/lizhou828/article/details/102954993

版权声明
本文为[. Weiyang]所创,转载请带上原文链接,感谢

  1. 利用Python爬虫获取招聘网站职位信息
  2. Using Python crawler to obtain job information of recruitment website
  3. Several highly rated Python libraries arrow, jsonpath, psutil and tenacity are recommended
  4. Python装饰器
  5. Python实现LDAP认证
  6. Python decorator
  7. Implementing LDAP authentication with Python
  8. Vscode configures Python development environment!
  9. In Python, how dare you say you can't log module? ️
  10. 我收藏的有关Python的电子书和资料
  11. python 中 lambda的一些tips
  12. python中字典的一些tips
  13. python 用生成器生成斐波那契数列
  14. python脚本转pyc踩了个坑。。。
  15. My collection of e-books and materials about Python
  16. Some tips of lambda in Python
  17. Some tips of dictionary in Python
  18. Using Python generator to generate Fibonacci sequence
  19. The conversion of Python script to PyC stepped on a pit...
  20. Python游戏开发,pygame模块,Python实现扫雷小游戏
  21. Python game development, pyGame module, python implementation of minesweeping games
  22. Python实用工具,email模块,Python实现邮件远程控制自己电脑
  23. Python utility, email module, python realizes mail remote control of its own computer
  24. 毫无头绪的自学Python,你可能连门槛都摸不到!【最佳学习路线】
  25. Python读取二进制文件代码方法解析
  26. Python字典的实现原理
  27. Without a clue, you may not even touch the threshold【 Best learning route]
  28. Parsing method of Python reading binary file code
  29. Implementation principle of Python dictionary
  30. You must know the function of pandas to parse JSON data - JSON_ normalize()
  31. Python实用案例,私人定制,Python自动化生成爱豆专属2021日历
  32. Python practical case, private customization, python automatic generation of Adu exclusive 2021 calendar
  33. 《Python实例》震惊了,用Python这么简单实现了聊天系统的脏话,广告检测
  34. "Python instance" was shocked and realized the dirty words and advertisement detection of the chat system in Python
  35. Convolutional neural network processing sequence for Python deep learning
  36. Python data structure and algorithm (1) -- enum type enum
  37. 超全大厂算法岗百问百答(推荐系统/机器学习/深度学习/C++/Spark/python)
  38. 【Python进阶】你真的明白NumPy中的ndarray吗?
  39. All questions and answers for algorithm posts of super large factories (recommended system / machine learning / deep learning / C + + / spark / Python)
  40. [advanced Python] do you really understand ndarray in numpy?
  41. 【Python进阶】Python进阶专栏栏主自述:不忘初心,砥砺前行
  42. [advanced Python] Python advanced column main readme: never forget the original intention and forge ahead
  43. python垃圾回收和缓存管理
  44. java调用Python程序
  45. java调用Python程序
  46. Python常用函数有哪些?Python基础入门课程
  47. Python garbage collection and cache management
  48. Java calling Python program
  49. Java calling Python program
  50. What functions are commonly used in Python? Introduction to Python Basics
  51. Python basic knowledge
  52. Anaconda5.2 安装 Python 库(MySQLdb)的方法
  53. Python实现对脑电数据情绪分析
  54. Anaconda 5.2 method of installing Python Library (mysqldb)
  55. Python implements emotion analysis of EEG data
  56. Master some advanced usage of Python in 30 seconds, which makes others envy it
  57. python爬取百度图片并对图片做一系列处理
  58. Python crawls Baidu pictures and does a series of processing on them
  59. python链接mysql数据库
  60. Python link MySQL database