基於Python自制一個檔案解壓縮小工具

pip install PyQt5
pip install py7zr
pip install rarfile

# Importing all the classes from the PyQt5.QtGui module.
from PyQt5.QtGui import *

# Importing all the classes from the PyQt5.QtWidgets module.
from PyQt5.QtWidgets import *

# Importing all the classes from the PyQt5.QtCore module.
from PyQt5.QtCore import *

# `import os` is importing the os module.
import os

# `import sys` is importing the sys module.
import sys

# `import zipfile as zip` is importing the zipfile module as zip.
import zipfile as zip

# `import py7zr` is importing the py7zr module.
import py7zr

# `import rarfile as rar` is importing the rarfile module as rar.
import rarfile as rar

# Importing the traceback module.
import traceback

import images

class CompressUI(QWidget):
    def __init__(self):
        super(CompressUI, self).__init__()
        self.init_ui()

    def init_ui(self):
        self.setWindowTitle('檔案解壓縮處理工具 公眾號：Python 集中營')
        self.setWindowIcon(QIcon(':/analysis.ico'))
        self.resize(600, 400)

        self.compress_file_type = QLabel()
        self.compress_file_type.setText('解壓縮檔案型別：')

        self.compress_file_type_combox = QComboBox()
        self.compress_file_type_combox.addItems(['7z格式', 'zip格式', 'rar格式'])

        self.file_catch_type = QLabel()
        self.file_catch_type.setText('檔案處理方式：')

        self.file_catch_type_combox = QComboBox()
        self.file_catch_type_combox.addItems(['壓縮', '解壓縮'])

        self.source_dir_or_file = QLineEdit()
        self.source_dir_or_file.setPlaceholderText('來源目錄或檔案路徑...')

        self.source_dir_or_file_btn = QPushButton()
        self.source_dir_or_file_btn.setText('載入來源目錄或檔案')
        self.source_dir_or_file_btn.clicked.connect(self.source_dir_or_file_btn_clk)

        self.target_dir_or_file = QLineEdit()
        self.target_dir_or_file.setPlaceholderText('目標目錄路徑...')

        self.target_dir_or_file_btn = QPushButton()
        self.target_dir_or_file_btn.setText('選擇目標路徑')
        self.target_dir_or_file_btn.clicked.connect(self.target_dir_or_file_btn_clk)

        self.start_btn = QPushButton()
        self.start_btn.setText('開始執行檔案壓縮或解壓縮處理')
        self.start_btn.clicked.connect(self.start_btn_clk)

        self.brower = QTextBrowser()
        self.brower.setReadOnly(True)
        self.brower.setFont(QFont('宋體', 8))
        self.brower.setPlaceholderText('紀錄檔處理過程區域...')
        self.brower.ensureCursorVisible()

        grid = QGridLayout()
        grid.addWidget(self.compress_file_type, 0, 0, 1, 2)
        grid.addWidget(self.compress_file_type_combox, 0, 2, 1, 1)
        grid.addWidget(self.file_catch_type, 1, 0, 1, 2)
        grid.addWidget(self.file_catch_type_combox, 1, 2, 1, 1)
        grid.addWidget(self.source_dir_or_file, 2, 0, 1, 2)
        grid.addWidget(self.source_dir_or_file_btn, 2, 2, 1, 1)
        grid.addWidget(self.target_dir_or_file, 3, 0, 1, 2)
        grid.addWidget(self.target_dir_or_file_btn, 3, 2, 1, 1)
        grid.addWidget(self.start_btn, 4, 0, 1, 3)
        grid.addWidget(self.brower, 5, 0, 1, 3)

        self.thread_ = WorkThread(self)
        self.thread_.message.connect(self.show_message)
        self.thread_.finished.connect(self.thread_is_finished)

        self.setLayout(grid)

    def show_message(self, text):
        cursor = self.brower.textCursor()
        cursor.movePosition(QTextCursor.End)
        self.brower.append(text)
        self.brower.setTextCursor(cursor)
        self.brower.ensureCursorVisible()

    def target_dir_or_file_btn_clk(self):
        target_dir_or_file_path = QFileDialog.getExistingDirectory(self, '選擇資料夾', os.getcwd())
        self.target_dir_or_file.setText(target_dir_or_file_path)

    def source_dir_or_file_btn_clk(self):
        file_catch_type = self.file_catch_type_combox.currentText()
        if file_catch_type == '壓縮':
            source_dir_or_file_path = QFileDialog.getExistingDirectory(self, '選擇資料夾', os.getcwd())
            self.source_dir_or_file.setText(source_dir_or_file_path)
        else:
            source_dir_or_file_path = QFileDialog.getOpenFileName(self, "選取檔案", os.getcwd(),
                                                                  "RAR File (*.rar);;ZIP File (*.zip);;7z File (*.7z)")
            self.source_dir_or_file.setText(source_dir_or_file_path[0])

    def start_btn_clk(self):
        self.start_btn.setEnabled(False)
        self.thread_.start()

    def thread_is_finished(self, text):
        if text is True:
            self.start_btn.setEnabled(True)

class WorkThread(QThread):
    message = pyqtSignal(str)
    finished = pyqtSignal(bool)

    def __init__(self, parent=None):
        super(WorkThread, self).__init__(parent)
        self.parent = parent
        self.working = True

    def __del__(self):
        self.working = False

    def run(self):
        try:
            compress_file_type = self.parent.compress_file_type_combox.currentText()
            file_catch_type = self.parent.file_catch_type_combox.currentText()
            source_dir_or_file = self.parent.source_dir_or_file.text().strip()
            target_dir_or_file = self.parent.target_dir_or_file.text().strip()
            if source_dir_or_file == '' or target_dir_or_file == '':
                self.message.emit('來源或目標檔案路徑為空，請檢查引數設定！')
                return
            if file_catch_type == '壓縮' and os.path.isfile(source_dir_or_file):
                self.message.emit('當處理型別為：壓縮，來源型別應該選擇資料夾，請按順序設定引數！')
                return
            if file_catch_type == '解壓縮' and os.path.isdir(source_dir_or_file):
                self.message.emit('當處理型別為：解壓縮，來源型別應該選擇檔案，請按順序設定引數！')
                return
            self.message.emit('準備處理的格式類星星為：{}'.format(compress_file_type))
            self.message.emit('準備處理的處理型別為：{}'.format(file_catch_type))
            self.message.emit('來原始檔或目錄的路徑為：{}'.format(source_dir_or_file))
            self.message.emit('目標目錄的路徑為：{}'.format(target_dir_or_file))

            if compress_file_type == 'zip格式':
                if file_catch_type == '壓縮':
                    self.do_zip(source_dir_or_file, target_dir_or_file)
                else:
                    self.un_zip(source_dir_or_file, target_dir_or_file)
            elif compress_file_type == 'rar格式':
                if file_catch_type == '壓縮':
                    self.message.emit('rar格式的檔案壓縮正在玩命開發中，請關注後續版本更新！')
                else:
                    self.un_rar(source_dir_or_file, target_dir_or_file)
            elif compress_file_type == '7z格式':
                if file_catch_type == '壓縮':
                    self.do_7z(source_dir_or_file, target_dir_or_file)
                else:
                    self.un_7z(source_dir_or_file, target_dir_or_file)
            self.message.emit('當前處理過程：{}完成！'.format(file_catch_type))
            self.finished.emit(True)
        except:
            traceback.print_exc()
            self.finished.emit(True)

    def do_zip(self, source_, target_file):
        """
        If the user selects the "壓縮" option, then the user can select a directory, and the path of the directory will be
        displayed in the text box
        """
        zip_file = zip.ZipFile(target_file, 'w')
        pre_len = len(os.path.dirname(source_))
        for parent, dirnames, filenames in os.walk(source_):
            for filename in filenames:
                print(f'{filename}')
                path_file = os.path.join(parent, filename)
                arcname = path_file[pre_len:].strip(os.path.sep)
                zip_file.write(path_file, arcname)

        zip_file.close()

    def un_zip(self, source_file, target_):
        """
        > Unzip a file to a target directory

        :param source_file: The file you want to unzip
        :param target_: the directory where you want to unzip the file
        """
        zip_file = zip.ZipFile(source_file)
        if os.path.isdir(target_):
            pass
        else:
            os.mkdir(target_)
        for names in zip_file.namelist():
            zip_file.extract(names, target_)
        zip_file.close()

    def do_7z(self, source_, target_file):
        """
        > This function takes a source file and a target file and compresses the source file into the target file using 7z

        :param source_: The source file or directory to be compressed
        :param target_file: The name of the file to be created
        """
        with py7zr.SevenZipFile(target_file, 'r') as file:
            file.extractall(path=source_)

    def un_7z(self, source_file, target_):
        """
        It takes a source directory and a target file, and creates a zip file containing the contents of the source
        directory

        :param source_: The path to the folder you want to zip
        :param target_file: The path to the zip file you want to create
        """
        with py7zr.SevenZipFile(source_file, 'w') as file:
            file.writeall(target_)

    def un_rar(self, source_file, target_):
        """
        It takes a source file and a target directory and unzips the source file into the target directory

        :param source_file: The path to the RAR file you want to extract
        :param target_: The directory where you want the files to be extracted to
        """
        obj_ = rar.RarFile(source_file.decode('utf-8'))
        obj_.extractall(target_.decode('utf-8'))

if __name__ == '__main__':
    app = QApplication(sys.argv)
    main = CompressUI()
    main.show()
    sys.exit(app.exec_())