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lambda use in Python is discouraged in general. If you need something beyond an expression, PEP-8 encourages you to use a def in that case instead.
by jennasys 6y ago
lambda use in Python is discouraged in general. If you need something beyond an expression, PEP-8 encourages you to use a def in that case instead.
- NoahTheDuke 6y agoThe issue with that is the lack of lexical scope. Lambdas have lexical scoping, def functions do not. To “fake” lexical scope, you have to use the nonlocal or global statements, which are gross and self-defeating.
- throwaway_pdp09 6y agoNot sure I understand, defs have lexical scoping too, if you just read variables (or am I getting rusty?). x = 3 def prt(): print(x) prt() prints 3, as expected. It's when you assign that you need P3's global etc. annotations, and you can't assign in lambdas.