问有没有办法将for循环替换为多线程，以加快执行速度？

EN

i = [a.b>c.d , e.f.g>h.i.j ]
l = [a.b , e.f.g ]
n = [a.b>c.d , e.f.g ]

for i in range(0, len(l)):
reac={}
reag={}
t = l[i].split(">")
REAC = t[0]
Reac = REAC.split(".")

for o in range(len(Reac)):

    reaco = "https://ai.chemistryinthecloud.com/smilies/" + Reac[o]

    respo = requests.get(reaco)
    reac[o] ={"Smile":Reac[o],"Details" :respo.json()}

if (len(t) != 1):
    REAG = t[1]
    Reag = REAG.split(".")
    for k in range(len(Reag)):

        reagk = "https://ai.chemistryinthecloud.com/smilies/" + Reag[k]
        repo = requests.get(reagk)
        reag[k] = {"Smile": Reag[k], "Details" :repo.json()}
    res = {"Reactants": list(reac.values()), "Reagents": list(reag.values())}
    boo.append(res)
else:
    res = {"Reactants": list(reac.values()), "Reagents": "No reagents"}
    boo.append(res)