如何连接以通过代理列表中的代理传递连接？ [Python3]和[请求库]

Question

我是python的新手，正在编写一些代码，并且我想使用Snapchat做一些测试。

但是当我运行下面的代码时，直到得到一个 "Index out of range"很奇怪，因为索引从未超过列表长度120

那么我如何使我的代码通过代理连接？：

我的列表看起来像

[103.21.161.105:6667,
103.216.82.43:6667,
103.216.82.200:6667] 

    import sys
    import os
    import requests
    import random
    # pip install requests[socks]
    name_of_file = sys.argv[0]

    would_you_like_to_start = input("would you like to start (y/n)")

    if would_you_like_to_start == "y" :
        pass;
    else:
        print("Process Stopped")
        quit()
    dir_path = os.path.dirname(os.path.realpath(__file__))
    print(dir_path)
    #Connecting to a proxy with requests
    print("Connecting to Proxy")
    session = requests.session()
    session.proxies = {}
    ProxyNo = "No"
    while ProxyNo == "No" :
        i = random.randint(1,120)
        proxie_list = open(dir_path + "/proxies.txt", 'r').readlines()
        session.proxies['http'] = 'socks5h://' +  proxie_list[i]
        session.proxies['https'] = 'socks5h://' + proxie_list[i]
        try:
            r = session.get("http://httpbin.org/ip")
            print(r.text)
            ProxyNo = "Yes"
        except :
            ProxyNo = "No"