Handling socket error with try, except [Errno 104] Connection reset by peer

Question

I'm trying catch the exception but the script continues and outputs none when something goes wrong with the proxy connection such as Socket Error: Socket error: [Errno 104] Connection reset by peer for the expiration date of google

import socket
import socks
import whois
import requests
try:
    r = requests.get('http://gimmeproxy.com/api/getProxy?protocol=socks5&maxCheckPeriod=3600').json()
    socks.set_default_proxy(socks.SOCKS5, r['ip'], int(r['port']))
    print(r['ip'], int(r['port']))
    socket.socket = socks.socksocket
    w = whois.whois('google.com')
    print(w.expiration_date)
except Exception as msg:
    print(msg) #never actually prints this

Answer 1

To catch socket exceptions you need to catch OSError exceptions.

Following code will work as expected:

import socket
import socks
import whois
import requests

exitcode = 0
try:
    r = requests.get('http://gimmeproxy.com/api/getProxy?protocol=socks5&maxCheckPeriod=3600').json()
    socks.set_default_proxy(socks.SOCKS5, r['ip'], int(r['port']))
    print(r['ip'], int(r['port']))
    socket.socket = socks.socksocket
    w = whois.whois('google.com')
    print(w.expiration_date)
except OSError as msg:
    print(msg)

---

Also you may use another version of this script. It will return an appropriate exit code as result of script execution:

import socket
import socks
import whois
import requests

exitcode = 0
try:
    r = requests.get('http://gimmeproxy.com/api/getProxy?protocol=socks5&maxCheckPeriod=3600').json()
    socks.set_default_proxy(socks.SOCKS5, r['ip'], int(r['port']))
    print(r['ip'], int(r['port']))
    socket.socket = socks.socksocket
    w = whois.whois('google.com')
    print(w.expiration_date)
except OSError as msg:
    print(msg)
    exitcode = 1

exit(exitcode)