Brew Error - This command updates brew itself and does not take formula names


Error - This command updates brew itself
Error - This command updates brew itself

If you are trying to upgrade a package/formula using Homebrew and you get the error "This command updates brew itself and does not take formula names" then the answer to the error is in this statement itself,

upgrade command updates brew and not formulae so you should use brew upgrade {formula} and not brew update {formula}

% brew update python3 
Error: This command updates brew itself, and does not take formula names.
Use `brew upgrade python3` instead.
Solution
brew upgrade python3
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