[Python-ideas] Re: String comprehension

c"f(c) for c in some_string if g(c)"

Even this example would allow the interpreter to skip building the generator object and having to feed the result of every f(c) back into the iterator protocol. This is similar to f-strings vs str.format. You could say that f-strings are redundant because they can't do anything that str.format can't, but they make it possible to shave off the static overhead of going through python's protocols and enable additional optimizations.