Python looping through multiple lists

Question

I've this code:

for i in range(0, len(codiceCassExcel)):
count1step += 1
 for j in range(0, len(vwLinesToList)):
    if data_reg[i] == vwLinesToList[j][1]:
        if codiceCassExcel[i] == vwLinesToList[j][0]:
            #Gestione movimento diverso da 601 e non bolle nostre
            if tipo_mov[i] != 601 and len(vwLinesToList[j][7]) != 8:
                count2step += 1
                if ((int(qta_movimentata[i]) + int(vwLinesToList[j][4])) != 0) or ((int(-qta_movimentata[i]) + int(vwLinesToList[j][3])) != 0):
                    imballoColumnIn.append(vwLinesToList[j][0]),
                    dateColumnIn.append(vwLinesToList[j][1]),
                    absColumnIn.append(vwLinesToList[j][2]),
                    inColumnIn.append(vwLinesToList[j][3]),
                    outColumnIn.append(vwLinesToList[j][4]),
                    ddtColumnIn.append(vwLinesToList[j][7]),
                    wkColumnIn.append(vwLinesToList[j][8])
            elif vwLinesToList[j][7] == bolla_excel[i]:
                if ((int(qta_movimentata[i]) + int(vwLinesToList[j][4])) != 0) or (
                    (int(-qta_movimentata[i]) + int(vwLinesToList[j][3])) != 0):
                    imballoColumn.append(vwLinesToList[j][0]),
                    dateColumn.append(vwLinesToList[j][1]),
                    absColumn.append(vwLinesToList[j][2]),
                    inColumn.append(vwLinesToList[j][3]),
                    outColumn.append(vwLinesToList[j][4]),
                    ddtColumn.append(vwLinesToList[j][7]),
                    wkColumn.append(vwLinesToList[j][8])

I've 5 lists with hundred of items and a lists with similar items (vwLinesToLists). I want to check if:

firstListItem[i] and secondListItem[i](and so on...) is equal to
vwLinesToList[j][1],  vwLinesToList[j][2], vwLinesToList[j][3]
If it's true, check if nListItem - vwLinesToList[j][6] != 0:
append each vwLinesToList[item] to separate list

I need an hint about write my code without all this nested stuff. Thank you in advance

Answer 1

Use zip method to iterate over your lists. See zip lists in python for code samples.

Also consider using of izip_longest function which may be useful to...