Yesterday I tried several editors for python programming language and did not work.
One of these is the spyder editor that does not work with python 3.7.3 - we have not discovered why.
The Mu is a simple Python editor for beginner programmers and has a strange working I.D.E. for good and fast development.
The PyCharm, it is developed by the Czech company JetBrains is not fully free ...
The Thonny I.D.E. is fast and comes with two good features:
Code completion and Highlights syntax errors.
The install steps are easy with a wizard application.
After that, you can test with any python source code.
The source code from the image is a simple example from this webpage.
Let's see a screenshot:
This is a video tutorial with this I.D.E. from Aivar Annamaa user: