How to remove padding between elements in GridLayout in PyQt5?

Question

Python

Tried self.grid.setSpacing(0) didn't help

from PyQt5 import (QtWidgets, QtCore, QtGui)
from PyQt5.QtGui import QIcon
import sys, time


class myWindow(QtWidgets.QWidget):
    def __init__(self, parent = None):
        QtWidgets.QWidget.__init__(self, parent)
        self.grid = QtWidgets.QGridLayout()
        self.button_1 = QtWidgets.QPushButton("1")
        self.button_2 = QtWidgets.QPushButton("2")
        self.label = QtWidgets.QLabel("1")
        self.label1 = QtWidgets.QLabel("2")
        self.grid.setSpacing(0)
        self.grid.addWidget(self.button_1, 0, 0)
        self.grid.addWidget(self.label, 0, 1)
        self.grid.addWidget(self.button_2, 1, 0)
        self.grid.addWidget(self.label1, 1, 1)
        self.setLayout(self.grid)



if __name__ == "__main__":
    app = QtWidgets.QApplication(sys.argv)
    window = myWindow()
    window.setWindowTitle("test")
    window.resize(300, 300)
    window.show()
    sys.exit(app.exec_())

Answer 1

from PyQt5 import (QtWidgets, QtCore, QtGui)
from PyQt5.QtGui import QIcon
import sys, time


class myWindow(QtWidgets.QWidget):
    def __init__(self, parent = None):
        QtWidgets.QWidget.__init__(self, parent)

        self.grid = QtWidgets.QGridLayout()

        # 1
        self.grid.setVerticalSpacing(0)
        self.grid.setContentsMargins(0, 0, 0, 0)

        self.button_1 = QtWidgets.QPushButton("1")
        self.button_2 = QtWidgets.QPushButton("2")

        # 2
        sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Minimum, QtWidgets.QSizePolicy.Minimum)
        sizePolicy.setHeightForWidth(self.button_1.sizePolicy().hasHeightForWidth())
        self.button_1.setSizePolicy(sizePolicy)
        sizePolicy.setHeightForWidth(self.button_2.sizePolicy().hasHeightForWidth())
        self.button_2.setSizePolicy(sizePolicy)

        self.label = QtWidgets.QLabel("1")
        self.label1 = QtWidgets.QLabel("2")
        self.grid.setSpacing(0)
        self.grid.addWidget(self.button_1, 0, 0)
        self.grid.addWidget(self.label, 0, 1)
        self.grid.addWidget(self.button_2, 1, 0)
        self.grid.addWidget(self.label1, 1, 1)
        self.setLayout(self.grid)



if __name__ == "__main__":
    app = QtWidgets.QApplication(sys.argv)
    window = myWindow()
    window.setWindowTitle("test")
    window.resize(300, 300)
    window.show()
    sys.exit(app.exec_())

The rest is regulated by the size of the gridlayout itself by means of

self.grid.setGeometry(QtCore.QRect(80, 50, 110, 60))

in # 1, and push the grid itself into a widget, which will already be the desired window size (300, 300 in this case)