mETL is an ETL package written in Python. Program can be used to load practically any kind of data to any target. Code is open source and available for anyone who want to use it. The main advantage to configurable via Yaml files and You have the possibility to write any transformation in Python and You can use it natively from any framework as well. We are using this tool in production for many of our clients and It is really stable and reliable. The project has a few contributors all around the world right now and I hope many developer will join soon. I want to introduce you this tool. In this presentation I will show you the functionality and the common use cases. Furthermore I will talk about other ETL tools in Python.