Problems assigning dict values to variables

I am struggling with something that must be one of those 'it is so obvious I am an idiot' problems. I have a csv file that I want to read in and use to create individual 'tables'. I have a variable (RID) that marks the beginning of a new 'table'.

I can't get my indicator variable (currentRow) to advance as I finish manipulating each line. You can see the print statements, currentRow remains equal to 0.

But if I use an assignment statement开发者_如何学JAVA outside of the loop I can change the value of currentRow at will. The test assignment is to just understand where I am getting in the loop.

currentRow=0
test=0
theTables=defaultdict(list)
for line in csv.DictReader(open(r'c:\temp\testread.csv')):
    newTableKey=line['CIK']+'-'+line['RDATE']+'-'+line['CDATE']+'-'+line['FNAME']+' '+line['TID']

    if line['RID']=='1':
        test+=1 # I can get here
        if currentRow>int(line['RID']):
            print 'got here'

            theTables[oldTableKey]=theList
            test+=1  # I cannot get here
        theList=[]
    theList.append(line)
    currrentRow=int(line['RID'])
    print currentRow  #this value always prints at 0
    print int(line['RID']) #this prints at the correct value
    oldTableKey=newTableKey

In the line:

currrentRow=int(line['RID'])

you have three rs in currrentRow. Reduce them to just two, and things should improve.

One solution is to add the following somewhere inside the loop:

currentRow += 1

However, a better solution may be to use enumerable:

for currentRow, line in csv.DictReader..:
    stuff

It looks to me like it's possible that theTables[oldTableKey]=theList could be executed with an uninitialized value of oldTableKey.