I've only been doing Python training for a few years now. I've made more money, had more flexibility, and been happier than at any previous time in my consulting career (which started in 1995).

Here are two interviews I've given on the subject:

- https://devjourney.info/Guests/83-ReuvenLerner.html - https://doubleyourfreelancing.com/business-freelancing-episo...

I'm always happy to talk about training. I love it, and recommend that everyone in the consulting world look into it more.

I also have a training newsletter, at https://TrainerWeekly.com/.