Merge pull request #74 from jfurcean/close_free_sockets

fix out of sockets issue

Author: brentru

adafruit_requests.py

@@ -405,6 +405,7 @@ def _free_sockets(self):
             self._close_socket(sock)
 
     def _get_socket(self, host, port, proto, *, timeout=1):
+        # pylint: disable=too-many-branches
         key = (host, port, proto)
         if key in self._open_sockets:
             sock = self._open_sockets[key]
@@ -434,6 +435,8 @@ def _get_socket(self, host, port, proto, *, timeout=1):
                 )
             except OSError:
                 continue
+            except RuntimeError:
+                continue
 
             connect_host = addr_info[-1][0]
             if proto == "https:":