Adding fields to tables and feature classes in a geodatabase using python script

In this post we are going to add X and Y coordinates fields to existing tables and feature class in a File Geodatabase programatically. 
1- We start by creating a xml document with the different field's properties, we'll be adding.

2- Now let's create a python list with the two fields by parsing the xml file
#parse Xml file from physical path into memory
root = elementTree.parse(pathToXmlFile)
#get the fields
fields = root.getiterator('field') # Returns list of all fields
#iterate thru each node
for node in fields:
  field = node
  theFieldList = []
  for i in range(len(field)):
      theFieldList.insert(i, field[i].text)
      listOfFields.append(theFieldList)#append field to the list
3- Then we create a list of feature classes  and tables we are going to be adding the fieldsfcList = ['fds\\fc1', 'fc2', 'table1']
4- Then we add the fieldsif len(Fields) > 0:
   #iterate thru fields
   for field in Fields:
       #get fields here
       field_name = str(field[0])
       field_type = str(field[1])
       field_precision = str(field[2])
       field_scale = str(field[3])
       field_length = str(field[4])
       field_alias = str(field[5])
       field_is_nullable = str(field[6])
       field_is_required =str(field[7])
       field_domain = str(field[8])
      #add field
      gp.addfield(fc, field_name, field_type, field_precision,
          field_scale, field_length, field_alias,
          field_is_nullable, field_is_required,
          field_domain)

Here is the complete code