minor PEP 8

Author: dimitri-yatsenko

tests/test_reconnection.py

@@ -4,10 +4,8 @@
 
 from nose.tools import assert_true, assert_false, assert_equal, raises
 import datajoint as dj
-import numpy as np
 from datajoint import DataJointError
-from . import CONN_INFO, PREFIX
-
+from . import CONN_INFO
 
 
 class TestReconnect:
@@ -18,20 +16,17 @@ class TestReconnect:
     def setup(self):
         self.conn = dj.conn(reset=True, **CONN_INFO)
 
-
     def test_close(self):
         assert_true(self.conn.is_connected, "Connection should be alive")
         self.conn.close()
         assert_false(self.conn.is_connected, "Connection should now be closed")
 
-
     def test_reconnect(self):
         assert_true(self.conn.is_connected, "Connection should be alive")
         self.conn.close()
         self.conn.query('SHOW DATABASES;', reconnect=True).fetchall()
         assert_true(self.conn.is_connected, "Connection should be alive")
 
-
     @raises(DataJointError)
     def test_reconnect_throws_error_in_transaction(self):
         assert_true(self.conn.is_connected, "Connection should be alive")