前置：

pip install PyQt6-Charts

结果：

代码：

import sys

from PyQt6.QtCharts import (QBarCategoryAxis, QBarSet, QChart,
                              QChartView, QValueAxis,QHorizontalBarSeries)
from PyQt6.QtCore import Qt,QSize
from PyQt6.QtGui import QPainter,QColor
from PyQt6.QtWidgets import QApplication, QWidget,QVBoxLayout

class BarChartWidget(QWidget):
    def __init__(self):
        super().__init__()
        self.setMinimumSize(QSize(400,600))
        self.chart = QChart()
        self._chart_view = QChartView(self.chart)
        self._chart_view.setRenderHint(QPainter.RenderHint.Antialiasing)

        layout = QVBoxLayout()
        layout.addWidget(self._chart_view)
        self.setLayout(layout)
        pass
    def set_data(self,data:dict):
        self.data = data

        self.set_0 = QBarSet('')
        self.set_0.append(list(self.data['data_map'].values()))  # 7
        self.set_0.setBarSelected(self.data['target_int'], True)
        self.set_0.setSelectedColor(QColor(255, 99, 71))

        self.series = QHorizontalBarSeries()
        self.series.append(self.set_0)
        self.series.setLabelsVisible(True)
        self.series.setLabelsPosition(QHorizontalBarSeries.LabelsPosition.LabelsInsideEnd)
        self.series.setLabelsFormat(f"@value {self.data['union_val']}")

        self.chart.addSeries(self.series)
        self.chart.setTitle(self.data['title'])
        self.chart.legend().hide()
        self.chart.setAnimationOptions(QChart.AnimationOption.SeriesAnimations)

        self.categories = list(self.data['data_map'].keys())
        self.axis_x = QBarCategoryAxis()
        self.axis_x.append(self.categories)
        self.chart.addAxis(self.axis_x, Qt.AlignmentFlag.AlignLeft)
        self.series.attachAxis(self.axis_x)

        self.axis_y = QValueAxis()
        self.axis_y.setRange(0, max(list(self.data['data_map'].values())))
        self.chart.addAxis(self.axis_y, Qt.AlignmentFlag.AlignBottom)
        self.series.attachAxis(self.axis_y)
        pass


if __name__ == '__main__':
    app = QApplication([])

    pre_data = {
        'title':'横向柱状图',
        'target_int':2,
        'union_val':'元',
        'data_map':{
            '苹果':8,
            '香蕉':5,
            '榴莲':25,
            '葡萄':9,
            '荔枝':15
        }
    }

    mw = BarChartWidget()
    mw.set_data(pre_data)
    mw.show()
    sys.exit(app.exec())
    pass