hello dear saikrishnauppaluri
many thanks for the input and your idea. love to hear from you
And besides that i could make use of a db:
SQLite would probably be sufficient. As i am pretty new to Python i think i have to dive into the learning to use an ORM - since i guess that this is a good thing and worth the effort on a trivial first example like an address book.
On a sidenote: a single text file with specific columns (delimited by | ) and using grep is probably sufficient. And i guess that this would bevery nice to search an entire group of entries for the answer … - in order to find out a few letters/numbers found anywhere on the “record”.
saikrishnauppaluri - many thanks for the answer and the help. I really feel encouraged to go on.
have a great day