[Tutor] update list of dictionaries based on key

[ski]

Hello,
Here is what I have so far:

 >>> mylist = [{'index': 0, 'title': 'Association of British Travel 
Agents', 'selected': False, 'edit_row': '?edit_affiliation=0', 
'affiliation': 'ABTA', 'affiliation_no': u'G3903'}, {'index': 1, 
'title': 'Appointed Agents of IATA', 'selected': False, 'edit_row': 
'?edit_affiliation=1', 'affiliation': 'IATA', 'affiliation_no': 
u'none'}, {'index': 0, 'title': 'Association of Airline Cons.', 
'selected': False, 'edit_row': '?edit_affiliation=0', 'affiliation': 
'AAC', 'affiliation_no': u'sss'}, {'index': 1, 'title': 'Association of 
British Travel Agents', 'selected': False, 'edit_row': 
'?edit_affiliation=1', 'affiliation': 'ABTA', 'affiliation_no': u'zser'}]

 >>> key = 'affiliation_no'

 >>> my_dup_keys = []
 >>> merged_list = []

 >>> mykeys = [item['affiliation'] for item in mylist]

 >>> for x in mykeys:
     	if mykeys.count(x) >= 2:
         	my_dup_keys.append(x)

 >>> for item in mylist:
     	if item['affiliation'] in set(my_dup_keys):
         	merged_list.append(item)


 >>> values = [d[key] for d in merged_list if d.has_key(key)]
 >>> for dict in merged_list:
     	dict[key] = values
     	mylist.append(dict)

 >>> print mylist
[{'index': 0, 'title': 'Association of British Travel Agents', 
'selected': False, 'edit_row': '?edit_affiliation=0', 'affiliation': 
'ABTA', 'affiliation_no': [u'G3903', u'zser']}, {'index': 1, 'title': 
'Appointed Agents of IATA', 'selected': False, 'edit_row': 
'?edit_affiliation=1', 'affiliation': 'IATA', 'affiliation_no': 
u'none'}, {'index': 0, 'title': 'Association of Airline Cons.', 
'selected': False, 'edit_row': '?edit_affiliation=0', 'affiliation': 
'AAC', 'affiliation_no': u'sss'}, {'index': 1, 'title': 'Association of 
British Travel Agents', 'selected': False, 'edit_row': 
'?edit_affiliation=1', 'affiliation': 'ABTA', 'affiliation_no': 
[u'G3903', u'zser']}, {'index': 0, 'title': 'Association of British 
Travel Agents', 'selected': False, 'edit_row': '?edit_affiliation=0', 
'affiliation': 'ABTA', 'affiliation_no': [u'G3903', u'zser']}, {'index': 
1, 'title': 'Association of British Travel Agents', 'selected': False, 
'edit_row': '?edit_affiliation=1', 'affiliation': 'ABTA', 
'affiliation_no': [u'G3903', u'zser']}]


This sort of works but I want to return a list that updates 'mylist' not 
append to it, so I will get:

[{'index': 0, 'title': 'Association of British Travel Agents', 
'selected': False, 'edit_row': '?edit_affiliation=0', 'affiliation': 
'ABTA', 'affiliation_no': [u'G3903', u'zser']}, {'index': 1, 'title': 
'Appointed Agents of IATA', 'selected': False, 'edit_row': 
'?edit_affiliation=1', 'affiliation': 'IATA', 'affiliation_no': 
u'none'}, {'index': 0, 'title': 'Association of Airline Cons.', 
'selected': False, 'edit_row': '?edit_affiliation=0', 'affiliation': 
'AAC', 'affiliation_no': u'sss'}]
     	

Thanks

Norman