Stop shadowing `ConnectionError`

In Python3, `ConnectionError` is a native exception. So rename our
custom one to `KafkaConnectionError` to prevent accidentally
shadowing the native one.

Note that there are still valid uses of `ConnectionError` in this code.
They already expect a native Python3 `ConnectionError`, and also already
handle the Python2 compatibility issues.

1 files changed, 2 insertions, 2 deletions

diff --git a/test/test_conn.py b/test/test_conn.py
index 12a32ef..fbdeeb9 100644
--- a/test/test_conn.py
+++ b/test/test_conn.py
@@ -99,7 +99,7 @@ def test_send_disconnected(conn):
     conn.state = ConnectionStates.DISCONNECTED
     f = conn.send('foobar')
     assert f.failed() is True
-    assert isinstance(f.exception, Errors.ConnectionError)
+    assert isinstance(f.exception, Errors.KafkaConnectionError)
 
 
 def test_send_connecting(conn):
@@ -162,7 +162,7 @@ def test_send_error(_socket, conn):
         _socket.send.side_effect = socket.error
     f = conn.send(req)
     assert f.failed() is True
-    assert isinstance(f.exception, Errors.ConnectionError)
+    assert isinstance(f.exception, Errors.KafkaConnectionError)
     assert _socket.close.call_count == 1
     assert conn.state is ConnectionStates.DISCONNECTED