Give me a list of beginner friendly Python open source projects to contribute.
1. Ansible: IT automation platform for provisioning various resources
2. Jupyter notebook: Interactive notebook popular in data engineering and machine learning world.
3. Pandas: Flexible and powerful data analysis library beloved by data engineers, scientists and analysts.
4. Scrapy: Web crawling and scraping framework written in python.
5. scikit-learn: This library is power packed with implementation of various machine learning algorithms.