Replace urllib with requests to Restrict Unsafe Protocol Handling

machine_learning/sequential_minimum_optimization.py

@@ -28,15 +28,15 @@
     https://www.microsoft.com/en-us/research/wp-content/uploads/2016/02/tr-98-14.pdf
 """
 
 import os
 import sys
-import urllib.request
+import requests
 
 import numpy as np
 import pandas as pd
 from matplotlib import pyplot as plt
 from sklearn.datasets import make_blobs, make_circles
 from sklearn.preprocessing import StandardScaler
 
 CANCER_DATASET_URL = (
     "https://archive.ics.uci.edu/ml/machine-learning-databases/"
@@ -451,12 +451,12 @@
     print("Hello!\nStart test SVM using the SMO algorithm!")
     # 0: download dataset and load into pandas' dataframe
     if not os.path.exists(r"cancer_data.csv"):
-        request = urllib.request.Request(  # noqa: S310
+        response = requests.get(
             CANCER_DATASET_URL,
             headers={"User-Agent": "Mozilla/4.0 (compatible; MSIE 5.5; Windows NT)"},
         )
-        response = urllib.request.urlopen(request)  # noqa: S310
-        content = response.read().decode("utf-8")
+        response.raise_for_status()  # Raise an exception for bad status codes
+        content = response.text
         with open(r"cancer_data.csv", "w") as f:
             f.write(content)