Compare to None with is/is not

1 files changed, 6 insertions, 6 deletions

diff --git a/test/functional/interface_http.py b/test/functional/interface_http.py
index e4b86f9e1e..20889366e5 100755
--- a/test/functional/interface_http.py
+++ b/test/functional/interface_http.py
@@ -31,13 +31,13 @@ class HTTPBasicsTest (BitcoinTestFramework):
         conn.request('POST', '/', '{"method": "getbestblockhash"}', headers)
         out1 = conn.getresponse().read()
         assert(b'"error":null' in out1)
-        assert(conn.sock!=None) #according to http/1.1 connection must still be open!
+        assert(conn.sock is not None) #according to http/1.1 connection must still be open!
 
         #send 2nd request without closing connection
         conn.request('POST', '/', '{"method": "getchaintips"}', headers)
         out1 = conn.getresponse().read()
         assert(b'"error":null' in out1) #must also response with a correct json-rpc message
-        assert(conn.sock!=None) #according to http/1.1 connection must still be open!
+        assert(conn.sock is not None) #according to http/1.1 connection must still be open!
         conn.close()
 
         #same should be if we add keep-alive because this should be the std. behaviour
@@ -48,13 +48,13 @@ class HTTPBasicsTest (BitcoinTestFramework):
         conn.request('POST', '/', '{"method": "getbestblockhash"}', headers)
         out1 = conn.getresponse().read()
         assert(b'"error":null' in out1)
-        assert(conn.sock!=None) #according to http/1.1 connection must still be open!
+        assert(conn.sock is not None) #according to http/1.1 connection must still be open!
 
         #send 2nd request without closing connection
         conn.request('POST', '/', '{"method": "getchaintips"}', headers)
         out1 = conn.getresponse().read()
         assert(b'"error":null' in out1) #must also response with a correct json-rpc message
-        assert(conn.sock!=None) #according to http/1.1 connection must still be open!
+        assert(conn.sock is not None) #according to http/1.1 connection must still be open!
         conn.close()
 
         #now do the same with "Connection: close"
@@ -65,7 +65,7 @@ class HTTPBasicsTest (BitcoinTestFramework):
         conn.request('POST', '/', '{"method": "getbestblockhash"}', headers)
         out1 = conn.getresponse().read()
         assert(b'"error":null' in out1)
-        assert(conn.sock==None) #now the connection must be closed after the response
+        assert(conn.sock is None) #now the connection must be closed after the response
 
         #node1 (2nd node) is running with disabled keep-alive option
         urlNode1 = urllib.parse.urlparse(self.nodes[1].url)
@@ -88,7 +88,7 @@ class HTTPBasicsTest (BitcoinTestFramework):
         conn.request('POST', '/', '{"method": "getbestblockhash"}', headers)
         out1 = conn.getresponse().read()
         assert(b'"error":null' in out1)
-        assert(conn.sock!=None) #connection must be closed because bitcoind should use keep-alive by default
+        assert(conn.sock is not None) #connection must be closed because bitcoind should use keep-alive by default
 
         # Check excessive request size
         conn = http.client.HTTPConnection(urlNode2.hostname, urlNode2.port)