I am having some weird trouble with dictionaries, I am trying to iterate pairs from a dictionary to pass to another function. The loop for the iterator though for some reason always returns empty values.

Here is the code:

  def LinktoCentral(self, linkmethod):
    if linkmethod == 'sim':
        linkworker = Linker.SimilarityLinker()
        matchlist = []

        for k,v in self.ToBeMatchedTable.iteritems():

            matchlist.append(k, linkworker.GetBestMatch(v, self.CentralDataTable.items()))

Now if I insert a print line above the for loop:

matchlist = []
print self.ToBeMatchedTable.items()        
for k,v in self.ToBeMatchedTable.iteritems():

            matchlist.append(k, linkworker.GetBestMatch(v, self.CentralDataTable.items()))

I get the data that is supposed to be in the dictionary printed out. The values of the dictionary are list objects. An example tuple I get from the dictionary when printing just above the for loop:

>>> (1, ['AARP/United Health Care', '8002277789', 'PO Box 740819', 'Atlanta', 'GA',

'30374-0819', 'Paper', '3676'])

However, the for loop gives empty lists to the linkworker.GetBestMatch method. If I put a print line just below the for loop, here is what I get:

Code:

matchlist = []

        for k,v in self.ToBeMatchedTable.iteritems():
            print self.ToBeMatchedTable.items()
            matchlist.append(k, linkworker.GetBestMatch(v, self.CentralDataTable.items()))

            ## Place holder for line to send match list to display window
        return matchlist

Result of first iteration:

>>> (0, ['', '', '', '', '', '', '', ''])

I literally have no idea whats going on, there is nothing else going on while this loop is executed. Any stupid mistakes I made?