However I had no choice but to use python because it was variously used in practice. I felt it was difficult to persuade my colleagues to use ruby instead of python. Colleagues were not familiar with ruby and there wasn't any ruby project in my company. So I chose python and kept using it for several years. After the decision I didn't try learning ruby because I though they have many characteristic in common and I thought it was meaningless to know both of them, besides I had no time to study it.
It has been several years since I gave up learning ruby, but I still have unresolved feeling about it. Whenever I read articles that highlight the power of ruby, I want to know about it. Haha.. But still there are high prioritized tasks to do. Learning ruby is still remained in the todo list.