dialog_1.py

import sys
from PyQt4 import QtGui, QtCore

count = 1


class Main_1(QtGui.QMainWindow):
	def __init__(self):
		QtGui.QMainWindow.__init__(self)
		self.initUI()

	def initUI(self):
		centralwidget = QtGui.QWidget()

		self.add = QtGui.QPushButton("Add")
		self.add.clicked.connect(self.Add)

		self.grid = QtGui.QGridLayout()

		self.grid.addWidget(self.add, 0, 0)

		centralwidget.setLayout(self.grid)

		self.setCentralWidget(centralwidget)

		# ---------Window settings --------------------------------

		self.setGeometry(300, 300, 280, 170)
		self.setWindowTitle("")
		self.setWindowIcon(QtGui.QIcon(""))
		self.setStyleSheet("background-color:")
		self.show()

	def Add(self):
		global count

		b = QtGui.QPushButton(str(count), self)
		b.clicked.connect(self.Button)

		self.grid.addWidget(b, count, 0)

		count += 1

	def Button(self):
		sender = self.sender()

		print(sender.text())


	def main():
		app = QtGui.QApplication(sys.argv)
		main = Main_1()
		main.show()

		sys.exit(app.exec_())


		if __name__ == "__main__":
			main()