HYTOS

    def updateProjectUnit(self, unit):

        """save project configurations"""

        # Creates or opens a file called mydb with a SQLite3 DB

        dbPath = self.getPrjDatabasePath()

        with sqlite3.connect(dbPath) as conn:

            try:

                # Get a cursor object

                cursor = conn.cursor()

                sql = "update Projects set [Unit]=? where [Id]=?"

                param = (unit, self.project.getId())

                cursor.execute(sql, param)

                conn.commit()

            # Catch the exception

            except Exception as ex:

                # Roll back any change if something goes wrong

                conn.rollback()

                from App import App

                message = 'error occurred({}) in {}:{}'.format(ex, sys.exc_info()[-1].tb_frame.f_code.co_filename,

                                                              sys.exc_info()[-1].tb_lineno)

                App.mainWnd().addMessage.emit(MessageType.Error, message)

        configs = docData.getConfigs('Project', 'Unit')

        sizeUnit = configs[0].value if 1 == len(configs) else None

        self.ui.radioButtonSizeUnitImaperial.setChecked(True if sizeUnit == 'Imperial' else False)

        self.ui.radioButtonSizeUnitMetric.setChecked(True if sizeUnit == 'Metric' else False)

            configs.append(Config('Project', 'Unit', 'Imperial' if self.ui.radioButtonSizeUnitImaperial.isChecked() else 'Metric'))

            docData.updateProjectUnit('Imperial' if self.ui.radioButtonSizeUnitImaperial.isChecked() else 'Metric')

        self.gridLayout_26.addWidget(self.lineEditSizeDelimiter, 1, 1, 1, 1)

        self.gridLayout_26.addWidget(self.label_6, 1, 0, 1, 1)

        self.gridLayout_26.addWidget(self.label_15, 2, 0, 1, 1)

        self.doubleSpinBoxDetectionRange = QtWidgets.QDoubleSpinBox(self.groupBoxAttribute)

        self.doubleSpinBoxDetectionRange.setSingleStep(0.1)

        self.doubleSpinBoxDetectionRange.setProperty("value", 1.0)

        self.doubleSpinBoxDetectionRange.setObjectName("doubleSpinBoxDetectionRange")

        self.gridLayout_26.addWidget(self.doubleSpinBoxDetectionRange, 2, 1, 1, 1)

        self.gridLayout_26.addWidget(self.label_26, 4, 0, 1, 1)

        self.gridLayout_26.addWidget(self.spinBoxFlowMarkLength, 4, 1, 1, 1)

        self.spinBoxFlowMarkPosition = QtWidgets.QSpinBox(self.groupBoxAttribute)

        self.spinBoxFlowMarkPosition.setMaximum(100)

        self.spinBoxFlowMarkPosition.setObjectName("spinBoxFlowMarkPosition")

        self.gridLayout_26.addWidget(self.spinBoxFlowMarkPosition, 3, 1, 1, 1)

        self.label_24 = QtWidgets.QLabel(self.groupBoxAttribute)

        self.label_24.setMaximumSize(QtCore.QSize(190, 16777215))

        self.label_24.setObjectName("label_24")

        self.gridLayout_26.addWidget(self.label_24, 3, 0, 1, 1)

        self.label_54 = QtWidgets.QLabel(self.groupBoxAttribute)

        self.label_54.setObjectName("label_54")

        self.gridLayout_26.addWidget(self.label_54, 0, 0, 1, 1)

        self.horizontalLayout_11 = QtWidgets.QHBoxLayout()

        self.horizontalLayout_11.setObjectName("horizontalLayout_11")

        self.radioButtonSizeUnitImaperial = QtWidgets.QRadioButton(self.groupBoxAttribute)

        self.radioButtonSizeUnitImaperial.setObjectName("radioButtonSizeUnitImaperial")

        self.buttonGroup_9 = QtWidgets.QButtonGroup(ConfigurationDialog)

        self.buttonGroup_9.setObjectName("buttonGroup_9")

        self.buttonGroup_9.addButton(self.radioButtonSizeUnitImaperial)

        self.horizontalLayout_11.addWidget(self.radioButtonSizeUnitImaperial)

        self.radioButtonSizeUnitMetric = QtWidgets.QRadioButton(self.groupBoxAttribute)

        self.radioButtonSizeUnitMetric.setObjectName("radioButtonSizeUnitMetric")

        self.buttonGroup_9.addButton(self.radioButtonSizeUnitMetric)

        self.horizontalLayout_11.addWidget(self.radioButtonSizeUnitMetric)

        self.gridLayout_26.addLayout(self.horizontalLayout_11, 0, 1, 1, 1)

        self.label_24.setText(_translate("ConfigurationDialog", "Line Flow Mark Position(Percent) : "))

        self.label_54.setText(_translate("ConfigurationDialog", "Size Unit : "))

        self.radioButtonSizeUnitImaperial.setText(_translate("ConfigurationDialog", "Imperial"))

        self.radioButtonSizeUnitMetric.setText(_translate("ConfigurationDialog", "Metric"))

# Form implementation generated from reading ui file './UI/Project.ui'

# Created by: PyQt5 UI code generator 5.11.3

        self.comboBoxProjectUnit.setEnabled(False)

if __name__ == "__main__":

    import sys

    app = QtWidgets.QApplication(sys.argv)

    ProjectDialog = QtWidgets.QDialog()

    ui = Ui_ProjectDialog()

    ui.setupUi(ProjectDialog)

    ProjectDialog.show()

    sys.exit(app.exec_())

             <widget class="QLineEdit" name="lineEditSizeDelimiter"/>

            <item row="1" column="0">

             <widget class="QLabel" name="label_15">

               <string>Attribute Detection Range(Ratio) : </string>

            <item row="2" column="1">

             <widget class="QDoubleSpinBox" name="doubleSpinBoxDetectionRange">

              <property name="singleStep">

               <double>0.100000000000000</double>

              <property name="value">

               <double>1.000000000000000</double>

            <item row="4" column="0">

            <item row="4" column="1">

            <item row="3" column="1">

             <widget class="QSpinBox" name="spinBoxFlowMarkPosition">

              <property name="maximum">

               <number>100</number>

              </property>

             </widget>

            </item>

            <item row="3" column="0">

             <widget class="QLabel" name="label_24">

              <property name="maximumSize">

               <size>

                <width>190</width>

                <height>16777215</height>

               </size>

              </property>

              <property name="text">

               <string>Line Flow Mark Position(Percent) : </string>

              </property>

             </widget>

            </item>

            <item row="0" column="0">

             <widget class="QLabel" name="label_54">

              <property name="text">

               <string>Size Unit : </string>

              </property>

             </widget>

            </item>

            <item row="0" column="1">

             <layout class="QHBoxLayout" name="horizontalLayout_11">

              <item>

               <widget class="QRadioButton" name="radioButtonSizeUnitImaperial">

                <property name="text">

                 <string>Imperial</string>

                </property>

                <attribute name="buttonGroup">

                 <string notr="true">buttonGroup_9</string>

                </attribute>

               </widget>

              </item>

              <item>

               <widget class="QRadioButton" name="radioButtonSizeUnitMetric">

                <property name="text">

                 <string>Metric</string>

                </property>

                <attribute name="buttonGroup">

                 <string notr="true">buttonGroup_9</string>

                </attribute>

               </widget>

              </item>

             </layout>

            </item>

  <buttongroup name="buttonGroup_3"/>

  <buttongroup name="buttonGroup_8"/>

  <buttongroup name="buttonGroup_7"/>

  <buttongroup name="buttonGroup_6"/>

  <buttongroup name="buttonGroup_2"/>

  <buttongroup name="buttonGroup_9"/>

      <widget class="QComboBox" name="comboBoxProjectUnit">

       <property name="enabled">

        <bool>false</bool>

       </property>

      </widget>