I have a GUI program,
It auto create buttons from a name list, and connect to a function prints its name.
but when I run this program, I press all the buttons,
they all return the last button's name.
I wonder why this thing happens. can any one help?
import sys
from PyQt4.QtCore import *
from PyQt4.QtGui import *
import logging
logging.basicConfig(level=logging.DEBUG,)
class MainWindow(QWidget):
def init(self):
names = ('a','b','c')
lo = QHBoxLayout(self)
for name in names:
button = QPushButton(name,self)
lo.addWidget(button)
self.connect(button,SIGNAL("clicked()"),
lambda :logging.debug(name))
if __name__=="__main__":
app = QApplication(sys.argv)
m = MainWindow();m.init();m.show()
app.exec_()
result like:
python t.py
DEBUG:root:c
DEBUG:root:c
DEBUG:root:c