file = QFile('example.txt') if not file.open(QIODevice.ReadOnly): print(file.errorString())
def read_file(file_path): file = QFile(file_path) if not file.open(QIODevice.ReadOnly): print(file.errorString()) return content = file.readAll() file.close() return content file_content = read_file('example.txt')This example defines a function that reads the contents of a file and returns it. If the file cannot be opened, an error message is printed to the console using the errorString function. The content is then read using the readAll function and returned. The return value of the function is then assigned to the variable file_content. The package library used in this example is PyQt5.QtCore.