title: String concatenation in variables
body: <h1>BACKGROUND:</h1>
  <p>I have set an excel parse the loads into “ObjectGroup” and “ObjectGroupMember”</p>
  <pre><code>ObjectGroup: [List of Objects]
  </code></pre>
  <p>Eg: SensitiveObject [‘PCI_SENS_OBJECT’, ‘SOX_SENS_OBJECT’]</p>
  <pre><code>ObjectGroupMember: [List of Members of ‘ObjectGroup]
  </code></pre>
  <p>Eg: PCI = [CC1,CC2,CCARD]</p>
  <p>The variable name for the “ObjectGroupMember” is derived from values in ‘ObjectGroup’ using,</p>
  <p>class GrpMem:</p>
  <pre><code>def __init__(self, senObj):
      for item in senObj:
          self.__dict__[item] = []`
  </code></pre>
  <p>My aim is to load my application with list of Objects and its respective members into my external database.</p>
  <h1>EXPECTATION:</h1>
  <pre><code>OBJECT_GROUP = DataParse('Datasheet.xlsx')
  ObjectList = OBJECT_GROUP.senObj
  ObjMem1 = OBJECT_GROUP.SenObjmem.PCI_SENS_OBJECT
  </code></pre>
  <ol>
  <li>Load external database with All Objects (senObj)</li>
  <li>Load members for senObj(0). This is derived from SenObjmem.PCISENS_OBJECT</li>
  </ol>
  <h1>ISSUE:</h1>
  <p>Hers is my current class</p>
  <pre><code>class LoadGrp():
      from GuardDataParse import DataParse
      def __init__(self,sourcefile):
          self.sourcefile = sourcefile
          self.parse = DataParse(self.sourcefile)
      def LoadGroup(self,GrpMembers):
          self.GrpMembers = GrpMembers
          DatasheetParse = DataParse(self.sourcefile)
          SensObj = DatasheetParse.senObj
          SensObjMem = DatasheetParse.SenObjmem+&quot;.&quot;+str(GrpMembers)
         #code for application load
  if __name__ == &quot;__main__&quot;:
      grdapi_run = LoadGrp('DataSheet.xlsx')
  </code></pre>
  <h1>RUN:</h1>
  <pre><code>grdapi_run = LoadGrp('DataSheet.xlsx')
  grdapi_run.LoadGroup('PCI_SENS_OBJECT')
  </code></pre>
  <p>Based on the above logic when I provide the LoadGroup with value (eg. PCI_SENS_OBJECT), SensObjMem should end up looking like SensObjMem = DatasheetParse.SenObjmem.PCI_SENS_OBJECT
  But I get the error” TypeError: unsupported operand type(s) for +: 'instance' and 'str’”</p>