Python Pick the music network, the GUI implementation of music player, Invincible Pythoner refining into mind!

Today, a few blog posts are some of the python pure dry, difficult, but also less difficult to fit the novice. But none of them, is that they will have the source + video tutorial Two in one for everyone to learn. This article has a benefit, my article many times by others copy to other sites, so it wants to copy at least more to move the brain

The tutorial in this blog is a python crawl of a music network resource, GUI to create a music player, two tutorials are released together.

First, how to use Python to crawl a nice light music network

Do not understand, directly look at the code, code can not understand? Find videos at the end of this article!

Import Python third-party request library

Import requests

Import third-party parsing libraries

From lxml import etree

The Urllib library has a dedicated method for downloading

From urllib.request import Urlretrieve

Video capture

1, understand the structure of the Web page!

• Requestor-> Parser-Download (Learn about)
• Requestor, URL Manager, Scheduler-> Parser, Downloader (face object, Enterprise development)

2. Define the request function

• Send a request and get a response
• Returns the result of our response text type

3. Analytic home page function

• Converts a text file to an object that can be parsed by the XPath syntax, extracting all the incomplete URLs
• Define an empty list to store our spliced URLs
• Walk through our list, add the URL to our new empty list using the Append method
• Returns a list of URLs that have been added.

4. Define a function that resolves a list

• Convert text files to objects that can be parsed by XPath syntax, extract the song name and number of each song
• Define an empty list to store the complete list of MP3
• Iterate through numbered lists, take out numbers, and combine the full URLs
• Put a well-stitched URL into the list and return to the full URL dictionary

5. Download function

• Download method, receive two parameters, one is address, one is save path
• Define a main function, program entry (main function), code logic
• Call our request function to get the return result of a home page
• Call parse function, parse homepage, get URL of all list page
• Traverse the URLs of all list pages
• Call the request function, pass in the URL, get the text file of the list page
• Invokes a function that resolves a list page, returning all MP3 URLs
• Call the Download function

Python Source:

Python_gui Create music player source code sharing

Simple version:

Code:

Python Pick the music network, the GUI implementation of music player, Invincible Pythoner refining into mind!