pyqt open file dialog

1import sys
2from PyQt5.QtWidgets import QApplication, QMainWindow, QWidget, \
3    QPushButton, QVBoxLayout, QFileDialog
4
5# you can copy and run this code
6
7class MainWindow(QMainWindow):
8    def __init__(self, parent=None):#--------------
9        super(MainWindow, self).__init__(parent)#  |
10        self.setWindowTitle("open file dialog")#   |
11#												   |
12        btn = QPushButton("Open File")#            |---- Just initialization
13        layout = QVBoxLayout()#					   |
14        layout.addWidget(btn)#                     |
15        widget = QWidget()#                        |
16        widget.setLayout(layout)#                  |
17        self.setCentralWidget(widget)#-------------
18
19        btn.clicked.connect(self.open) # connect clicked to self.open()
20        self.show()
21
22    def open(self):
23        path = QFileDialog.getOpenFileName(self, 'Open a file', '',
24                                        'All Files (*.*)')
25        if path != ('', ''):
26            print("File path : "+ path[0])
27
28if __name__ == "__main__":
29    app = QApplication(sys.argv)
30    window = MainWindow()
31    sys.exit(app.exec_())

1def open_file(self):
2	def open(self):
3        path = QFileDialog.getOpenFileName(self, 'Open a file', '',
4                                        'All Files (*.*)')
5        if path != ('', ''):
6            print(path[0])

1def open(self):
2    path = QFileDialog.getOpenFileName(self, 'Open a file', '',
3                                     'All Files (*.*)')
4    if path != ('', ''):
5		print(path[0])