Remove the dependency on objgraph

minode/tests/test_memory.py

@@ -2,7 +2,6 @@
 
 import gc
 import time
-import objgraph
 
 from minode import shared
 
@@ -50,6 +49,9 @@ class TestListener(TestProcessProto):
                 self.fail('The connection is alive')
 
             gc.collect()
-            for c in objgraph.by_type('Connection'):
-                if c not in shared.connections:
-                    self.fail('Connection %s remained in memory' % c)
+            for obj in gc.get_objects():
+                if (
+                    isinstance(obj, shared.connection)
+                    and obj not in shared.connections
+                ):
+                    self.fail('Connection %s remains in memory' % obj)

requirements.txt

@@ -1,3 +1,2 @@
 coverage
-objgraph
 psutil