Was there any punishment for Germany after World War 2 and if so what was it?

Yes, the main figures in the Nazi government were tried and hanged at Nuremberg. The people who held even some minor offices under the Nazis were banned from politics. And if one examines photographs of German cities after the war, their cities were in utter ruins with 90% of the housing stock in Berlin destroyed. The bombing of civilian areas can be considered a punishment in itself.