def populate_tree(self):
        """Create each item (and associated data) in the tree"""
        if not self.stats:
            warn_item = QTreeWidgetItem(self)
            warn_item.setData(
                0, Qt.DisplayRole,
                _('No timings to display. '
                  'Did you forget to add @profile decorators ?')
                .format(url=WEBSITE_URL))
            warn_item.setFirstColumnSpanned(True)
            warn_item.setTextAlignment(0, Qt.AlignCenter)
            font = warn_item.font(0)
            font.setStyle(QFont.StyleItalic)
            warn_item.setFont(0, font)
            return

        try:
            monospace_font = self.window().editor.get_plugin_font()
        except __HOLE__:  # If run standalone for testing
            monospace_font = QFont("Courier New")
            monospace_font.setPointSize(10)

        for func_info, func_data in self.stats.items():
            # Function name and position
            filename, start_line_no, func_name = func_info
            func_stats, func_peak_usage = func_data
            func_item = QTreeWidgetItem(self)
            func_item.setData(
                0, Qt.DisplayRole,
                _('{func_name} (peak {peak_usage:.3f} MiB) in file "{filename}", '
                  'line {line_no}').format(
                    filename=filename,
                    line_no=start_line_no,
                    func_name=func_name,
                    peak_usage=func_peak_usage))
            func_item.setFirstColumnSpanned(True)
            func_item.setData(COL_POS, Qt.UserRole,
                              (osp.normpath(filename), start_line_no))

            # For sorting by time
            func_item.setData(COL_USAGE, Qt.DisplayRole, func_peak_usage)
            func_item.setData(COL_INCREMENT, Qt.DisplayRole,
                              func_peak_usage)

            if self.parent().use_colors:
                # Choose deteministic unique color for the function
                md5 = hashlib.md5((filename + func_name).encode("utf8")).hexdigest()
                hue = (int(md5[:2], 16) - 68) % 360  # avoid blue (unreadable)
                func_color = QColor.fromHsv(hue, 200, 255)
            else:
                # Red color only
                func_color = QColor.fromRgb(255, 0, 0)

            # get max increment
            max_increment = 0
            for line_info in func_stats:
                (line_no, code_line, usage, increment) = line_info
                if increment is not None:
                    max_increment = max(max_increment, increment)

            # Lines of code
            for line_info in func_stats:
                line_item = QTreeWidgetItem(func_item)
                (line_no, code_line, usage, increment) = line_info
                self.fill_item(
                    line_item, filename, line_no, code_line,
                    usage, increment)

                # Color background
                if increment is not None:
                    alpha = increment / max_increment if max_increment != 0 else 0
                    color = QColor(func_color)
                    color.setAlphaF(alpha)  # Returns None
                    color = QBrush(color)
                    for col in range(self.columnCount()):
                        line_item.setBackground(col, color)
                else:

                    for col in range(self.columnCount()):
                        line_item.setForeground(col, CODE_NOT_RUN_COLOR)

                # Monospace font for code
                line_item.setFont(COL_LINE, monospace_font)
dataset/ETHPy150Open Nodd/spyder_line_profiler/widgets/memoryprofilergui.py/MemoryProfilerDataTree.populate_tree