BCV CAMT to CSV

#!/usr/bin/python3

import xml.dom.minidom
import csv
import glob

for file in glob.glob('CAMT.053*.xml'):
    print(file)
    camt = xml.dom.minidom.parse(file)
    document = camt.documentElement
    csvfile = open(file.replace('.xml','.csv'), 'w', newline='')
    csvwriter = csv.writer(csvfile, delimiter=',',quotechar='"', quoting=csv.QUOTE_MINIMAL)
    csvwriter.writerow(['Date','Description','Amount'])

    balance_before = float(document.getElementsByTagName('Bal')[0].getElementsByTagName('Amt')[0].firstChild.data)
    balance_after  = float(document.getElementsByTagName('Bal')[1].getElementsByTagName('Amt')[0].firstChild.data)
    balance = 0

    for entry in document.getElementsByTagName('Ntry'):
        name = entry.getElementsByTagName('AddtlNtryInf')[0].firstChild.data
        date = entry.getElementsByTagName('BookgDt')[0].getElementsByTagName('Dt')[0].firstChild.data
        for entry_detail in entry.getElementsByTagName('NtryDtls'):
            for transaction in entry_detail.getElementsByTagName('TxDtls'):
                amount = transaction.getElementsByTagName('Amt')[0].firstChild.data
                direction = transaction.getElementsByTagName('CdtDbtInd')[0].firstChild.data
                if(direction == 'DBIT'): amount = float(amount)*-1

                if(transaction.getElementsByTagName('Nm')):
                    name = transaction.getElementsByTagName('Nm')[0].firstChild.data
                print(date + ' : ' + name + ' : ' + str(amount))
                csvwriter.writerow([date,name,str(amount)])
                balance = balance + float(amount)

    print(str(balance))
    print(str(balance_before) + ' - ' + str(balance_after) + ' = ' + str(balance_after - balance_before))