Example QTableView with PyQt5

pyqt5-tableview.py

import sys
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtCore import Qt


class TableModel(QtCore.QAbstractTableModel):
    def __init__(self, data):
        super(TableModel, self).__init__()
        self._data = data

    def data(self, index, role):
        if role == Qt.DisplayRole:
            # See below for the nested-list data structure.
            # .row() indexes into the outer list,
            # .column() indexes into the sub-list
            return self._data[index.row()][index.column()]

    def rowCount(self, index):
        # The length of the outer list.
        return len(self._data)

    def columnCount(self, index):
        # The following takes the first sub-list, and returns
        # the length (only works if all rows are an equal length)
        return len(self._data[0])


class MainWindow(QtWidgets.QMainWindow):
    def __init__(self):
        super().__init__()

        self.table = QtWidgets.QTableView()

        data = [
          [4, 9, 2],
          [1, 0, 0],
          [3, 5, 0],
          [3, 3, 2],
          [7, 8, 9],
        ]

        self.model = TableModel(data)
        self.table.setModel(self.model)

        self.setCentralWidget(self.table)


app=QtWidgets.QApplication(sys.argv)
window=MainWindow()
window.show()
app.exec_()

source: https://www.learnpyqt.com/courses/model-views/qtableview-modelviews-numpy-pandas/