Porting VBA To IronPython - vba

Question

I am trying to translate the VBA code found in this link into IronPython. Can anyone recommend a good VBA resource to explain how best to do this for a Python programmer?
I have all the Excel portions implemented, such as the treatment and use of objects, workbooks, worksheets, etc.
I will also settle for an explanation of this snippet of code:
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
' Put the index value of the sheet into Arr. Ensure there
' are no duplicates. If Arr(N) is not zero, we've already
' loaded that element of Arr and thus have duplicate sheet
' names.
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
If Arr(N) > 0 Then
ErrorText = "Duplicate worksheet name in NameArray."
SortWorksheetsByNameArray = False
Exit Function
End If
why would Arr(N) ever NOT be greater than 0?
Here is my current code, which is broken:
def move_worksheets_according_to_list(self, name_list):
wb = self.com_workbook
temp_list = []
for n in range(len(name_list)):
if name_list.count(name_list[n]) > 1:
raise Exception("Duplicate worksheet name in NameArray.")
else:
temp_list.append(wb.Worksheets(name_list[n]).Index)
for m in range(len(temp_list)):
for n in range(m, len(temp_list)):
if temp_list[n] < temp_list[m]:
l = temp_list[n]
temp_list[n] = temp_list[m]
temp_list[m] = l
if not all(temp_list[i] <= temp_list[i+1] for i in xrange(len(temp_list)-1)):
return False
print "current order"
for sheet in wb.Worksheets:
print sheet.Name
wb.Worksheets(name_list[0]).Move(Before=wb.Worksheets(1))
#WB.Worksheets(NameArray(LBound(NameArray))).Move before:=WB.Worksheets(Arr(1))
for n in range(len(name_list)-1):
print 'moving ', name_list[n], 'before ', name_list[n+1]
wb.Worksheets(name_list[n]).Move(Before=wb.Worksheets(name_list[n + 1]))
Note:
With this answer as reference, here is all I had to do:
def move_worksheets_according_to_list(self, name_list):
wb = self.com_workbook
l = []
# since wb.Worksheets is a com_object, you can't use the "if _ in XXX"
# construct without converting to a list first
for s in wb.Worksheets:
l.append(s.Name)
for n in range(len(name_list)):
if name_list[n] in l:
wb.Worksheets(name_list[n]).Move(After=wb.Worksheets(wb.Worksheets.Count))

Answer 1

Declaring and dimensioning an array of longs in VBA will create the array with the default value of 0 in each slot.

Answer 2

def move_worksheets_according_to_list(self, name_list):
wb = self.com_workbook
l = []
# since wb.Worksheets is a com_object, you can't use the "if _ in XXX"
# construct without converting to a list first
for s in wb.Worksheets:
l.append(s.Name)
for n in range(len(name_list)):
if name_list[n] in l:
wb.Worksheets(name_list[n]).Move(After=wb.Worksheets(wb.Worksheets.Count)