Description: Looks for ca-certificates.crt at the good Debian location before trying local path
Author: Carl Chenet <chaica@ohmytux.com>

--- a/tornado/simple_httpclient.py
+++ b/tornado/simple_httpclient.py
@@ -30,7 +30,10 @@ try:
 except ImportError:
     import urllib.parse as urlparse  # py3
 
-_DEFAULT_CA_CERTS = os.path.dirname(__file__) + '/ca-certificates.crt'
+if os.path.exists('/etc/ssl/certs/ca-certificates.crt'):
+    _DEFAULT_CA_CERTS = '/etc/ssl/certs/ca-certificates.crt'
+else:
+    _DEFAULT_CA_CERTS = os.path.dirname(__file__) + '/ca-certificates.crt'
 
 
 class SimpleAsyncHTTPClient(AsyncHTTPClient):