Turning Function With Yield Into One-Liner in Python-CodePudding

I have the following function, which produces a sequence of numbers. I would like to turn it into a one-liner in the form of an iterator or a generator. How can I do that?

def one_line_generator():
    sum = 0
    string = "Hello"
    i = 0
    while True:
        sum  = ord(string[i])
        yield sum
        if i<len(string)-1:
            i  = 1
        else:
            i = 0

CodePudding user response：

Another try

from itertools import accumulate, cycle
from operator import add
string = "Hello" 
res = accumulate(cycle(map(ord, string)), add)

CodePudding user response：

Like so, for instance, if you insist.

import itertools

def oneline2(string, i=0):
    return itertools.chain.from_iterable(((i := i   ord(c)) for c in s) for s in itertools.repeat(string))