Running the code gives "upstream request timeout", where me Iris data set has around 300,000 lines of data and I my rest api is from Azure cloud

Question

I have even tried reducing the length of data, but it's not working

import requests
import time
import json

with open("Iris.csv") as f:
line = f.readline()
headers = line.strip().split(",")
features = []
for l in f.readlines():
features.append(list(map(lambda x: float(x), l.strip().split(",")\[1:-1\])))
models = ["onnx","pmml","pfa"]

for _ in range(600):
data1 = requests.post("https://axscdfd/score", json={
        "models": models,
        "x": features,
         }, headers={"Authorization": "Bearer abcdefght"}, timeout=(100,100))
print(data1.content)
time.sleep(2)

I tried running this code, and am expecting it to upload the data and print {}