Proxy requests?

Question

Python

try:
   f=open('proxy.txt','r')
except IOError:
   print("Error. File './%s' not found!")
   sys.exit(1)
pr_list=f.readlines()
while i < len(pr_list):
    proxyDict = { 
              "https"  : pr_list[i].strip()
            }
  print(requests.post('https://2ip.ru',proxies=proxyDict))

In a text document I have:
125.164.3.220:8080
125.24.100.94:8080
185.131.62.250:53281
With this code I get an error:
no_proxy = proxies.get('no_proxy') if proxies is not None else None
AttributeError: 'str 'object has no attribute 'get'

Answer 1

import os
import requests

file_with_proxy = './p.txt'

if os.path.isfile('file_with_proxy'):
  with open(file_with_proxy, 'r') as p_f:
    for p in p_f:
       print(requests.post('https://2ip.ru', proxies={'http': p.strip()}))