While learning scopes in python, I come across the below simple code. My doubt is how can I pass the parameter to outer_var and inner_var in the function.
def outerfunc(outer_var):
def innerfunc(inner_var):
return outer_var * inner_var
return innerfunc
Basically, yeah, it's like @jonrsharpe said: it's because of closures.
Closures "close" around the state within a function that can be used later. Every time you run outerfunc(), the code will define a new version of innerfunc() that has access to outer_var that was passed in that time.
Closures are what make parameterized decorators work.
