Setting proxy by attribute does not work

[richardpenman]

I understood from this example that proxies could be set by attribute, however this did not work in my test:

import primp

proxy = 'XXX'
url = 'https://icanhazip.com/'

client1 = primp.Client(proxy=proxy)
print(client1.get(url).text) # returns the proxy IP

client2 = primp.Client()
client2.proxy = proxy
print(client2.get(url).text) # returns your own IP