Reuses session in default requester

Author: nunomaduro

algoliasearch/http/requester.py

@@ -1,12 +1,24 @@
 import requests
 
 from requests import Timeout, RequestException
+from requests.adapters import HTTPAdapter
+from requests.packages.urllib3.util import Retry
 
 from algoliasearch.http.transporter import Response, Request
 
 
 class Requester(object):
 
+    def __init__(self):
+        # type: () -> None
+
+        self.session = requests.Session()  # type: ignore
+
+        # Ask urllib not to make retries on its own.
+        self.session.mount(
+            'https://', HTTPAdapter(max_retries=Retry(connect=0))
+        )
+
     def send(self, request):
         # type: (Request) -> Response
 
@@ -25,8 +37,6 @@ def send(self, request):
             return Response(error_message=str(e), is_timed_out_error=True)
         except RequestException as e:
             return Response(error_message=str(e), is_network_error=True)
-        finally:
-            s.close()
 
         return Response(
             response.status_code,