This is the hero skin of the part downloaded through the hero alliance downloader written by the blogger , You can see the effect . Each hero's skin will automatically create a corresponding folder according to the hero's name .
Please read the complete source code at the end of the article ...
The implementation idea is relatively simple , Also through PyQt5 To write the download page . Finally through request Module to write the download part of the skin . The operation process is as follows , Select the storage path of the skin . Then click directly to start downloading , And you can view the download progress information in the text browser .
Next , The main implementation part of the code block is introduced . First , Introduce which third-party modules are used in the whole code block .
# Hero alliance skin download related dependent modules
import requests # Network request Library
import re # Regular expression matching Library
import json # JSON Format conversion library
import os # Application operation Library
import time # Time module
from random import random # Random number module
from fake_useragent import UserAgent # user_agent Build a library
import logging # Log module
import sys # system operation
# pyqt5 The module reference of is not introduced here , It's been used recently .
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *UI The design process of interface, code block and the application process of signal and slot function .
def init_ui(self):
self.setWindowTitle(' Hero skin Downloader official account ：[Python concentration camp ]')
self.setWindowIcon(QIcon('lol.ico'))
self.resize(500,250)
vbox = QVBoxLayout()
self.save_dir = QLineEdit()
self.save_dir.setReadOnly(True)
self.save_btn = QPushButton()
self.save_btn.setText(' route ')
self.save_btn.clicked.connect(self.save_btn_click)
self.thread_ = DownLoadThread(self)
self.thread_.trigger.connect(self.update_log)
self.start_btn = QPushButton()
self.start_btn.setText(' Start the download ')
self.start_btn.clicked.connect(self.start_btn_click)
grid = QGridLayout()
grid.addWidget(self.save_dir, 0, 0, 1, 2)
grid.addWidget(self.save_btn, 0, 2, 1, 1)
grid.addWidget(self.start_btn, 0, 3, 1, 1)
self.result_brower = QTextBrowser()
self.result_brower.setFont(QFont(' Song style ', 8))
self.result_brower.setReadOnly(True)
self.result_brower.setPlaceholderText(' Hero skin batch download progress display area ...')
self.result_brower.ensureCursorVisible()
vbox.addWidget(self.result_brower)
vbox.addLayout(grid)
self.setLayout(vbox)
def start_btn_click(self):
self.start_btn.setEnabled(False)
self.thread_.start()
def update_log(self, text):
cursor = self.result_brower.textCursor()
cursor.movePosition(QTextCursor.End)
self.result_brower.append(text)
self.result_brower.setTextCursor(cursor)
self.result_brower.ensureCursorVisible()
def save_btn_click(self):
directory = QFileDialog.getExistingDirectory(self, " Select a folder ", self.cwd)
self.save_dir.setText(directory)UI Interface design code , Follow and others PyQt5 Same design paradigm . Written according to this paradigm UI Personally, the code block looks more beautiful .
In order to prevent the slow download process from causing UI The main thread of the interface hangs directly , Therefore, it needs to be used separately when writing the logic of download business QThread It is written in the way of sub thread . This can separate the business logic from the main page logic , There will be no hanging up .
class DownLoadThread(QThread):
trigger = pyqtSignal(str)
def __init__(self, parent=None):
super(DownLoadThread, self).__init__(parent)
# Initialize log object
self.logger = logging.getLogger(' Hero League skin ')
logging.basicConfig()
self.logger.setLevel(logging.DEBUG)
self.parent = parent
self.working = True
def __del__(self):
self.working = False
self.wait()
def run(self):
'''
Hero alliance skin download function
:return:
'''
while self.working == True:
# structure useragent Identity device information
headers = {
"User-Agent": str(UserAgent().random),
}
self.logger.info(' Generation of identity device information completed ')
self.trigger.emit(' Generation of identity device information completed ！')
# stay LOL The official website of has been analyzed champion.js It contains the heroes we want to use ID Number , therefore , Put this JS Download the file
champion_js_url = "https://lol.qq.com/biz/hero/champion.js"
# send out http request 、 The request address is this JS File address . Will download it .
response = requests.get(url=champion_js_url, headers=headers)
self.logger.info('champion.js File download complete ')
self.trigger.emit('champion.js File download complete ！')
# Get downloaded text information
text = response.text
self.logger.info('champion.js Text information ：' + text)
# matching champion The object corresponds to JSON data , The JSON The number of data 0 One location contains heroes ID Numbered JSON data
hero_json = re.findall(r'champion=(.*?);', text, re.S)[0]
# take JSON Data to dict Dictionaries
hero_dict = json.loads(hero_json)
self.logger.info(' hero ID Dictionary information ：' + str(hero_dict))
# Hero by hero information traversal
for hero_data in hero_dict["data"].items():
# To get hero details JS file
hero_js_url = "http://lol.qq.com/biz/hero/{}.js"
# Send a request to download the JS file 、hero_data[0] Take the first place 0 One is a hero ID
response = requests.get(url=hero_js_url.format(hero_data[0]), headers=headers)
# Get Download Text
text = response.text
self.logger.info(hero_data[0] + '.js Text information ：' + text)
self.trigger.emit(hero_data[0] + '.js File download complete ！')
skins_dict = json.loads(re.findall("{}=(.*?);".format(hero_data[0]), text, re.S)[0])
self.logger.info(' Current hero skin dictionary ：' + str(skins_dict))
# From the dictionary skins_dict Get skin list
skins_list = skins_dict["data"]["skins"]
# Get hero name
hero_name = hero_data[1]["name"]
# Create under current directory images Folder 、 Take the hero name as the folder name
os.makedirs(r"./images/{}".format(hero_name), exist_ok=True)
for skin_info in skins_list:
# Initialize skin picture address
skin_pic_url = "https://ossweb-img.qq.com/images/lol/web201310/skin/big{}.jpg"
# Send download request
reponse = requests.get(url=skin_pic_url.format(skin_info["id"]), headers=headers)
try:
self.logger.info(' Save the path ' + self.parent.save_dir.text().strip())
# Save skin
with open(r"" + self.parent.save_dir.text().strip() + "/{}/{}.jpg".format(hero_name,
skin_info["name"]),
"wb") as f:
f.write(reponse.content)
self.logger.info("{} Download complete !".format(skin_info["name"]))
self.trigger.emit("{} Download complete !".format(skin_info["name"]))
except:
self.logger.error(skin_info["name"] + ', Download exception . Skip next ！')
self.trigger.emit(skin_info["name"] + ', Download exception . Skip next ！')
self.sleep(round(random(), 5))Because there are many businesses to download this piece , For your convenience . Basically, I wrote comments on the main code blocks , Small partners in need can be transformed according to their own needs .
Reply in official account " Hero League skin Downloader " Get the full source code ...
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