FileMorpher.py

import os 
from PyQt5 import QtWidgets, QtGui

import sys
from PyQt5.QtWidgets import QApplication 

app = QApplication(sys.argv)

class FileRenamer(QtWidgets.QWidget):
    def __init__(self):
        super().__init__()
        self.initUI()

    def initUI(self):
        #Create a label for the folder selection
        self.folderLabel = QtWidgets.QLabel('Folder:')
        #Create a line edit for displaying the selected folder
        self.folderEdit = QtWidgets.QLineEdit() 
        #Create a button for the selecting the folder
        self.folderButton = QtWidgets.QPushButton('Browse...')
        #Create a label for the search pattern
        self.searchLabel = QtWidgets.QLabel('Search Pattern:')
        #Create a line edit for the search pattern
        self.searchEdit = QtWidgets.QLineEdit() 
        #Create a label for the replacement string
        self.replaceLabel = QtWidgets.QLabel('Replacement:')
        #Create a line edit for the replacement string
        self.replaceEdit = QtWidgets.QLineEdit()
        #Create a rename button
        self.renameButton = QtWidgets.QPushButton('Rename')

        #Create a grid layout and add the widgets to it
        layout = QtWidgets.QGridLayout()
        layout.addWidget(self.folderLabel, 0, 0)
        layout.addWidget(self.folderEdit, 0, 1)
        layout.addWidget(self.folderButton, 0, 2)
        layout.addWidget(self.searchLabel, 1, 0)
        layout.addWidget(self.searchEdit, 1, 1)
        layout.addWidget(self.replaceLabel, 2, 0)
        layout.addWidget(self.replaceEdit, 2, 1)
        layout.addWidget(self.renameButton, 3, 1)
        self.setLayout(layout)

        #Set the window title
        self.setWindowTitle('Bulk File Rename Tool ;)')
        #Set the window icon
        self.setWindowIcon(QtGui.QIcon('icon.png'))
        # Connect the folder selection button to the folderSelection method
        self.folderButton.clicked.connect(self.folderSelection)
        # Connect the rename button to the renameFiles method
        self.renameButton.clicked.connect(self.renameFiles)


    def folderSelection(self):
        #Show a folder selection dialog and set the selected
        #Folder in the line edit
        folder = QtWidgets.QFileDialog.getExistingDirectory(self, 'Select Folder')
        self.folderEdit.setText(folder)


    def renameFiles(self):
        #Get the folder, search pattern, and replacement
        #string from the line edits
        folder = self.folderEdit.text()
        search = self.searchEdit.text()
        replace = self.replaceEdit.text()

        #Loop through the files in the folder
        for filename in os.listdir(folder):
            #Check if the filename matches the search pattern
            if search in filename:
                #Construct the new filename by replacing the search pattern
                #with the replacement string
                new_filename = filename.replace(search, replace)
                #Construct the full path for the old and new filenames
                old_path = os.path.join(folder, filename)
                new_path = os.path.join(folder, new_filename)
                #Rename the file
                os.rename(old_path, new_path)

        #Show a message box to indicate that the renaming is complete
        QtWidgets.QMessageBox.information(self, 'File Renamer', 'File renaming complete!')

#Create an instance of the FileRenamer class and show the window
renamer = FileRenamer()
renamer.show()

#Run the application
sys.exit(app.exec_())