Driver not loaded Driver not loaded

代码如下：

import redis
from PyQt5.Qt import *from resource.EquToMesEquipmentProcessParam_window import Ui_Formimport sys
from PyQt5.QtCore import Qt
from PyQt5.QtSql import QSqlDatabase, QSqlQueryModel
from PyQt5.QtWidgets import QApplication, QMessageBox, QTableView# class EquToMesEquipmentProcessParamPane(QWidget, QTableView, Ui_Form):
class EquToMesEquipmentProcessParamPane(QTableView):def __init__(self):super(EquToMesEquipmentProcessParamPane, self).__init__()# self.db = Noneself.db_connect()self.sql_exec()def db_connect(self):self.db = QSqlDatabase.addDatabase('QMYSQL')self.db.setHostName('localhost')self.db.setPort(3306)self.db.setDatabaseName('suining_svolt_xadmin_v1')self.db.setUserName('root')self.db.setPassword('root')if not self.db.open():QMessageBox.critical(self, 'Database Connection', self.db.lastError().text())def closeEvent(self, QCloseEvent):self.db.close()def sql_exec(self):model = QSqlQueryModel()                        # 1model.setQuery("SELECT id, name, class, score FROM equtomesequipmentprocessparam_equtomesequipmentprocessparampo")model.setHeaderData(0, Qt.Horizontal, 'ID')model.setHeaderData(1, Qt.Horizontal, 'Name')model.setHeaderData(2, Qt.Horizontal, 'Class')model.setHeaderData(3, Qt.Horizontal, ' Score')self.setModel(model)                            # 2for i in range(model.rowCount()):               # 3id = model.record(i).value('id')name = model.record(i).value(1)print(id, name)print('---------------------')for i in range(model.rowCount()):               # 4id = model.data(model.index(i, 0))name = model.data(model.index(i, 1))print(id, name)if __name__ == '__main__':import sysapp = QApplication(sys.argv)window = EquToMesEquipmentProcessParamPane()window.show()sys.exit(app.exec_())

解决办法：

目前 PyQt5 是5.15.2

需要安装 5.12.1 ，这个版本有 qsqlmysql.dll 。拷贝下来

再安装 5.15.2

C:\Users\huanglianggu\PycharmProjects\suining-svolt\suining_svolt_xadmin_v1>pip install PyQt5==5.12.1 -i https://pypi.tuna.tsinghua.edu.cn/simple/
Looking in indexes: https://pypi.tuna.tsinghua.edu.cn/simple/
Collecting PyQt5==5.12.1Using cached https://pypi.tuna.tsinghua.edu.cn/packages/b2/87/219cd547c0deb902edd3fdbf1af01409f7f9d251344b9154d878203cf841/PyQt5-5.12.1-5.12.2-cp35.cp36.cp37.cp38-none-win_amd64.whl
Requirement already satisfied: PyQt5_sip<4.20,>=4.19.14 in c:\users\huanglianggu\appdata\local\programs\python\python38\lib\site-packages (from PyQt5==5.12.1) (4.19.19)
Installing collected packages: PyQt5Found existing installation: PyQt5 5.15.2Uninstalling PyQt5-5.15.2:Successfully uninstalled PyQt5-5.15.2
Successfully installed PyQt5-5.12.1
WARNING: You are using pip version 19.2.3, however version 22.0.4 is available.
You should consider upgrading via the 'python -m pip install --upgrade pip' command.C:\Users\huanglianggu\PycharmProjects\suining-svolt\suining_svolt_xadmin_v1>pip install PyQt5==5.15.2 -i https://pypi.tuna.tsinghua.edu.cn/simple/
Looking in indexes: https://pypi.tuna.tsinghua.edu.cn/simple/
Collecting PyQt5==5.15.2Using cached https://pypi.tuna.tsinghua.edu.cn/packages/aa/72/754c693db0e745b9fe47debc3ec52844461f090d5beff28489a0cde5ef82/PyQt5-5.15.2-5.15.2-cp35.cp36.cp37.cp38.cp39-none-win_amd64.whl
Collecting PyQt5-sip<13,>=12.8 (from PyQt5==5.15.2)Downloading https://pypi.tuna.tsinghua.edu.cn/packages/39/d0/cf2b613a3309397013e7781f2cdb4b1e0661ae635d88b75b6f481ec43d8c/PyQt5_sip-12.10.1-cp38-cp38-win_amd64.whl (77kB)|████████████████████████████████| 81kB 102kB/s
Installing collected packages: PyQt5-sip, PyQt5Found existing installation: PyQt5-sip 4.19.19Uninstalling PyQt5-sip-4.19.19:Successfully uninstalled PyQt5-sip-4.19.19Found existing installation: PyQt5 5.12.1Uninstalling PyQt5-5.12.1:Successfully uninstalled PyQt5-5.12.1
Successfully installed PyQt5-5.15.2 PyQt5-sip-12.10.1
WARNING: You are using pip version 19.2.3, however version 22.0.4 is available.
You should consider upgrading via the 'python -m pip install --upgrade pip' command.C:\Users\huanglianggu\PycharmProjects\suining-svolt\suining_svolt_xadmin_v1>

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