Da ich schon seit Langem immer fleißig die .csv files zu den Rechnungen herunterladen hab ich schnell folgendes Python Script geschrieben das mir die Zählarbeit erleichtert (und Schreikrämpfe in Excel verhindert).

Als kleinen Bonus zählt es auch (etwas inexakt fürchte ich) die Homezone Minuten, daraus kann man ablesen was das Verlieren von Genion für Auswirkungen hat.

# parses .csv files from o2 germany billing
# counts talked minutes ('sprache' in 'ART') and sms sent ('sms' in 'TARIFGRUPPE')
# ignores international minutes/sms
import csv
import glob
import string

# <config>
mypath = '*.csv' # e.g. './mybills/*.csv'
mydelimiter = '|' # '|' aka "pipe" is default with o2
# </config>

if __name__ == "__main__":
files = glob.glob(mypath)
assert len(files) > 0, "Error! No Files found (check path)"

totalminutes = 0
totalsms = 0
totalhomezone = 0
for file in files:
csvfile = open(file)
reader = csv.DictReader(csvfile,delimiter=mydelimiter)
smscount = 0
timecount = dict(hours=0,minutes=0,seconds=0)
homezonecount = 0
for row in reader:
if 'sprache' in string.lower(row['ART']):
(h,m,s) = string.split(row['DAUER'], ':')
timecount['hours'] += int(h)
timecount['minutes'] += int(m)
timecount['seconds'] += int(s)
if 'homezone' in string.lower(row['TARIFGRUPPE']):
homezonecount += int(m) + (int(h)*60) + (int(s)/60)
if 'sms' in string.lower(row['TARIFGRUPPE']):
smscount = smscount + 1
minutes = timecount['minutes'] + (timecount['hours']*60) + (timecount['seconds']/60)
totalminutes += minutes
totalsms += smscount
totalhomezone += homezonecount
print(file+' '+str(minutes)+' Minutes '+str(smscount)+' SMS ('+str(homezonecount)+' Minutes in Homezone)')
assert minutes >= homezonecount, "Error! More minutes in homezone than total?"
# the cool .format prints only work in python 2.6 ...
#print('Total  :{0:4} Minutes and {1:4} SMS in {2} Months ({3:4} Minutes in Homezone)'.format(totalminutes,totalsms,len(files),totalhomezone))
#print('Average:{0:4} Minutes and {1:4} SMS per Month'.format(totalminutes/len(files),totalsms/len(files)))
# ... and since that isn't in debian stable yet... i added "old" prints
print('Total   '+str(totalminutes)+' Minutes '+str(totalsms)+' SMS in '+str(len(files))+' Months ('+str(totalhomezone)+' Minutes in Homezone)')
print('Average '+str(totalminutes/len(files))+' Minutes '+str(totalsms/len(files))+' SMS per Month')

These Prices are in German Marks, which back then was maybe half to two thirds of a dollar (date is in MM/YY form and the comma marks the decimal point, so first entry reads 62 Mark and 3 Pfennig)

07/98: 62,03
08/98: 190,66
09/98: 193,22
10/98: 174,92
11/98: 176,06
12/98: 231,59
01/99: 179,12
02/99: 207,84
03/99: 237,94
04/99: 238,27
05/99: 226,31
06/99: 137,04

Back then you had 56kbit with a modem or 64kbit with ISDN later and you had to make every minute count All of this was to play Ultima Online in the evenings and i was still in school back then … kind of an expensive hobby
Comparing this to today’s DSL market really makes you cry
You get 16mbit down 1mbit DSL up for 20 euros flat or even 50mbit down 10mbit up VDSL for 70 euros flat. Kids today have it way to easy!