READ ALL OF THIS, IT'S IMPORTANT: This is how you monkeypatch support for binding to a specific IP into Python Requests. You use the new bound_ip keyword argument when creating a new session, to assign a certain IP to that Requests session. All subsequent HTTP requests made from that session via the standard methods, will be bound to that IP. No…

ip-binding-monkeypatch.py

# I needed this for my nzbspider project (https://github.com/joepie91/nzbspider). Decided to throw up a stand-alone version.

import requests, socket

# Very nasty monkeypatching ahead!
socket.real_create_connection = socket.create_connection

class ModifiedSession(requests.Session):
	def __init__(self, *args, **kwargs):
		try:
			self.bound_ip = kwargs['bound_ip']
			del kwargs['bound_ip']
		except KeyError, e:
			self.bound_ip = ""
			
		requests.Session.__init__(self, *args, **kwargs)
		
	def patch_socket(self):
		socket.create_connection = get_patched_func(self.bound_ip)
	
	def unpatch_socket(self):
		socket.create_connection = socket.real_create_connection
	
	def get(self, *args, **kwargs):
		self.patch_socket()
		response = requests.Session.get(self, *args, **kwargs)
		self.unpatch_socket()
		return response
		
	def post(self, *args, **kwargs):
		self.patch_socket()
		response = requests.Session.post(self, *args, **kwargs)
		self.unpatch_socket()
		return response
    
	def head(self, *args, **kwargs):
		self.patch_socket()
		response = requests.Session.head(self, *args, **kwargs)
		self.unpatch_socket()
		return response
    
	def put(self, *args, **kwargs):
		self.patch_socket()
		response = requests.Session.put(self, *args, **kwargs)
		self.unpatch_socket()
		return response
    
	def patch(self, *args, **kwargs):
		self.patch_socket()
		response = requests.Session.patch(self, *args, **kwargs)
		self.unpatch_socket()
		return response
    
	def delete(self, *args, **kwargs):
		self.patch_socket()
		response = requests.Session.delete(self, *args, **kwargs)
		self.unpatch_socket()
		return response

def get_patched_func(bind_addr):
	def set_src_addr(*args):
		address, timeout = args[0], args[1]
		source_address = (bind_addr, 0)
		return socket.real_create_connection(address, timeout, source_address)
	return set_src_addr
	
# You're looking at duct tape and tie-wraps. It's like your local Home
# Depot, except in Python.