Here is what problems I solved to learn python : I hope I'll describe problem and solution.
First problem is an excercise from Codility.com that I used to resolve for an back-end developer interview. The solution is provided both in c# and python languages. PhotoPractice.py and PhotoPractice.cs. input file is named photolist.txt
you can find full description for problem here : http://mfaziz.com/codility-excercise-john-likes-to-travel/#comment-1028