fix: misspell on return code

Author: bekhzod91

CHANGELOG.md

@@ -6,6 +6,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased
 - Support `fetch_schema` parameter for a connection (#219).
+- Corrected misspelling in the error code returned.
 
 ### Added
 

tarantool/connection.py

@@ -1168,7 +1168,7 @@ def check():  # Check that connection is alive
                 sock_fd = self._socket.fileno()
             except socket.error as e:
                 if e.errno == errno.EBADF:
-                    return errno.ECONNRESETtuple_value
+                    return errno.ECONNRESET
             else:
                 if os.name == 'nt':
                     flag = socket.MSG_PEEK