[FREE] JetBrains Academy is Offering Free Courses including Python

Register before July 1, 2020, to get this special offer with full free access to all learning activities and features of JetBrains Academy until January 1, 2021. They have sources on Java, Python and Kotlin. After the free period ends it will switch to a one-year paid subscription with 50% discount, so you might want to cancel before that.