tech community here is actually pretty good for a city of its size. Malmö is kinda the Oakland to Copenhagen's San Francisco... A lot of startups seem to come out of projects related to Lund University, so you might also look for things in Lund as well (about 10 minutes N. of Malmö .. actually just search for anything in Skåne, which will catch anything in Malmö/Lund/Helsingborg )
monster.se and se.indeed.com are pretty good for generic job listings. Also i've found universities here (i.e. http://www.lunduniversity.lu.se/about-lund-university/jobs , http://www.mah.se/english , http://www.slu.se/en/ ) are a good place to look for Python jobs, as a lot of bioinformatics/science dept. are looking for developers. I guess you might also try blocket.se and thelocal.se , as there are some jobs posted there...
Lastly, not too clear about your situation, but another option might be to enroll in a Pd'D program, as they will give you a visa and a decent wage. This is true in either Denmark or Sweden.
But, just to be warned, Denmark does have a reputation of having rather harsh visa requirements. I'm not joking when I say a lot of people in Malmö moved here because of the somewhat recent Danish crackdown on visas.
They've got a pretty interesting mobile payment start-up named iZettle: https://www.izettle.com. They're currently using Facebook integration, so you might be able to help them out with that.
