The German bank DKB does not provide access to VISA transactions using HBCI, which is why this script has been written.
It will get you your DKB VISA transactions in the QIF format.
It has been inspired by Jens Herrmann's web_bank.py, but has been written using some newer tools/frameworks such as BeautifulSoup and mechanize, in the hope that it will be more stable against changes on the DKB web site.
Thanks to Jens Herrmann for the initial work nevertheless!
You may also be interested in the derived project "dkbweb" by Tom which provides additional features such as bank account transaction exporting.
It will log-in as you at DKB's online banking website, will pretend to be you, will use the CSV export feature and will convert the fetched data to the QIF format, which can be imported by several financial tools.
You need Python >=2.7.x and mechanize. On current Ubuntu, this should suffice:
apt-get install python-mechanize
./dkb.py --userid USER --cardid 1234 --output dkb.qif
with USER being the name you are using at the regular DKB online banking web site as well, with 1234 being the last four digits of your card (to select the proper card) and with dkb.qif being the output file.
You will be asked for a start date if you do not specify one using --from-date. Optionally, --to-date can be specified to further limit the time frame. If not given, it defaults to the current date.
Then you will be asked for your PIN and should get your dkb.qif file in the current directory after some informational output.
If it does not work, you may have mis-entered some of the required data or there may have been changes on the DKB web site, in which case adjustments to the script will be necessary.
The resulting QIF file can be imported in several financial tools, although I only tested GnuCash.
If this script is of any help for you, please let me know. :)