Mypy tips
Learn a language that is actually typed.
(If you have time)
I recommend the elm language. It'st the first language with which I built impressive application. There is a great community on slack and discourse, very welcoming to beginners.
Don't redefine a variable.
Every time you change what the variable represents to you will get an error.
While a contrived example above, you can see it is easy to reuse a variable and makes a lot of sense when writing. But this will throw 2 mypy errors even though its otherwise good code.
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