After my previous problem, I have my widgets on my main window. But this lasts doesn't come with any data: the datagridview haven't columns and the treeview are invisible or without my hard coded items. Here's my code:
app.py
#!/usr/bin/env python import sys from PyQt5.QtCore import Qt from PyQt5.QtGui import QIcon from PyQt5.QtWidgets import QApplication, qApp, QWidget, QMainWindow, QGridLayout, QMenuBar, QAction, QToolBar, QStatusBar from views import Main class TerraSoft(QMainWindow): def __init__(self): QMainWindow.__init__(self) self.setWindowTitle('TerraSoft') self.setWindowState(Qt.WindowMaximized) exitAct = QAction(QIcon('exit24.png'), 'Exit', self) exitAct.setShortcut('Ctrl+Q') exitAct.triggered.connect(qApp.quit) fileMenu = self.menuBar().addMenu('File') fileMenu.addAction(exitAct) toolbar = self.addToolBar('Main') toolbar.addAction(exitAct) main = Main() self.setCentralWidget(main) self.statusBar().showMessage('Bienvenue dans TerraSoft') if __name__ == '__main__': app = QApplication(sys.argv) ex = TerraSoft() ex.show() sys.exit(app.exec_()) .views.py
import sys from PyQt5.QtCore import Qt from PyQt5.QtGui import QIcon from PyQt5.QtWidgets import QApplication, QWidget, qApp, QAction, QSplitter, QMenuBar, QToolBar, QGridLayout, QStatusBar from Family.views import FamilyTreeView from Specie.views import EventsTableView class Main(QWidget): def __init__(self, *args): QWidget.__init__(self, *args) familyTreeView = FamilyTreeView(self) eventsTableView = EventsTableView(self) HSplitter = QSplitter(Qt.Horizontal) HSplitter.addWidget(familyTreeView) HSplitter.addWidget(eventsTableView) grid = QGridLayout() grid.addWidget(HSplitter) self.setLayout(grid) module: Family.views.py
import sys from PyQt5.QtCore import Qt from PyQt5.QtGui import QStandardItemModel, QStandardItem from PyQt5.QtWidgets import QApplication, QWidget, QTreeView families = [ ("Craspedocephalus", [ ("puniceus", []), ("trigonocephalus", []) ]), ("Trimeresurus", [ ("albolabris", []) ]), ("Elapidé", []) ] class FamilyTreeView(QWidget): """description of class""" def __init__(self, *args): QWidget.__init__(self, *args) self.familyList = QTreeView() self.familyList.setMaximumWidth(300) self.model = QStandardItemModel() self.addItems(self.model, families) self.familyList.setModel(self.model) self.model.setHorizontalHeaderLabels([self.tr("Familles")]) def addItems(self, parent, elements): for text, children in elements: item = QStandardItem(text) parent.appendRow(item) if children: self.addItems(item, children) module: specie.views.py
import sys from PyQt5.QtCore import Qt from PyQt5.QtGui import QStandardItemModel, QStandardItem from PyQt5.QtWidgets import QApplication, QWidget, QTableWidget, QTreeView class EventsTableView(QTableWidget): """description of class""" def __init__(self, *args): QTableWidget.__init__(self, *args) self.eventsTable = QTableWidget() self.eventsTable.setColumnCount(3) self.eventsTable.setHorizontalHeaderLabels(('Date', 'Catégorie', 'Description')) enter code here The result of this code gives: 
hope you can help me again,
thanks per advance !
