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Editor to share with you how to build Python automatic online video browsing, I believe that most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's learn about it!

First, the conditions for completing the function 1. Necessary conditions

Install the Python environment (https://www.python.org/)

Install Selenium installation

The corresponding version of the browser driver used (webdriver)

two。 Non-prerequisite

Install the PyCharm integrated environment

Second, solve the trap of Python software 1. Install Python

Check the place must be added, the default is not selected, which will affect the command line to run python-related commands can be correctly executed.

two。 Install Selenium

This installation is really simple, there is no need to worry about how to download, how to install. Go directly to the command line interface in the operating system and execute:

Pip install selenium

3. Download and install the Chrome driver

This is a real pit. When using it, some people think that they have installed a Chrome browser and think that they can directly use the Python driver, but in fact, there must be a corresponding version of the Chrome driver.

Download URL: http://npm.taobao.org/mirrors/chromedriver

Is not a flash blind your eyes, so many, which one is suitable for me?

You need to first take a look at your Chrome version, the corresponding version of the driver can be used.

Quickly enter the following code in the browser to take a look at the version!

Chrome://version/

I believe everyone's version is different from mine, mine is a 32-bit version! Why not use the 64-bit version? Most of what can be downloaded on the Internet is 64-bit version. If you look in the Chrome driver, the driver for Win is basically 32. So you'd better change your browser. The right thing to do here is to find a 32-bit Chrome on the Internet, and then see if there is a corresponding driver. If you have both, download it quickly.

The downloaded driver file name: chromedriver.exe, in order to reduce the trouble of configuration, you should place this file in the Python installation folder. If not, you can right-click: Python menu "[Properties]" [Open File location] in the start menu and paste directly.

Everything is ready and ready to start

Whether you are good at using PyCharm or using IDLE that comes with Python, the result is the same.

1. Drive Chrome and let it visit the website we need:

The following code automatically opens the Chrome browser, maximizes it, and then automatically opens the site you want to visit.

From selenium import webdriverfrom time import sleepdriver=webdriver.Chrome () driver.maximize_window () # Please modify the website address and use driver.get ("https://XXXX.XXXXXXX.cn/welcome/")"

Press the F12 function key in the browser to enter developer mode: select: Elements, press [Ctrl+F] to find: find [user login], you can navigate to the corresponding div tag. Class is signIn. Click this div to go to the next page.

The above code:

Sleep (3) driver.find_element_by_class_name ("signIn") .click

When all the code is re-executed, the login page will automatically open on the new Chrome tab

There are three operating points, we need to automatically locate and enter the user name and password, and then click the [login] button. At the same time, because [login] is a separate new tab, it also makes the operation more difficult. Similarly, F12 enters developer mode and looks for: [user name] and [Please enter password] to determine the two input boxes.

[login] button can not be found here by search. Click the [Select] button in the upper left corner of developer mode, and click the [login] location to automatically determine the location.

This [login] is inside the tag, but it is actually the text shown in. So choose to button, basically successful. The code for processing is as follows:

# Code for switching to the new tab handles = driver.window_handlesfor handle in handles: if driver.current_window_handle! = handle: driver.switch_to.window (handle) sleep (2) # locate the user name box and click to locate driver.find_element_by_id ("username"). Click () sleep (2) # simulate the keyboard to enter the user name driver.find_element_by_id ("username") in the user name box Send _ keys ('327XXXX9880212XXXX') sleep (2) # navigate to the password box Click driver.find_element_by_id (' password'). Click () # Analog input password driver.find_element_by_id ('password'). Send_keys (' 12345678') sleep (1) # navigate to the login button and click driver.find_element_by_tag_name ('button'). Click () 2. For more complex class selectors

For example:

Enter the workbench

If there is more than one button in the page, it is not easy to use the tag of button.

Driver.find_element_by_css_selector ("[class='ant-btn ant-btn-link role-card-btn']") .click ()

3. For usernames and passwords, you can use file read-write processing

F=open ('user.txt','r') driver.find_element_by_id ("username"). Click () driver.find_element_by_id ("username"). Send_keys (f.readline (). Strip ('\ r\ n') driver.find_element_by_id ('password'). Click () driver.find_element_by_id (' password'). Send_keys (f.readline (). Strip ('\ r\ n'))

The file format of user.txt:

327XXXX9880212XXXX123456784. For the processing of multiple video files, we generally use # to get the information of multiple elements, similar to an array, and operate each element sipin= driver.find_elements_by_css_selector ("[class='XX-YY_ZZ']") sipin [0] .click () sleep (60* time) sipin [1] .click () 5. Close the browser (two actions are optional) # close the current form driver.close () # close the entire browser driver.quit () these are all the contents of the article "how to build automatic online video browsing by Python". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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