diff --git a/pytest.ini b/pytest.ini
new file mode 100644
index 0000000..8b9d61a
--- /dev/null
+++ b/pytest.ini
@@ -0,0 +1,8 @@
+[pytest]
+filterwarnings =
+    ignore:.*getargspec.* is deprecated:DeprecationWarning
+    ignore:.*setting concentration for .* to 0.0:UserWarning
+    ignore:Primary class.* Related class .* must have a primary attribute:UserWarning
+    ignore:.* exchange reactions created .*:UserWarning
+    ignore:.* minimum and .* maximum default flux bounds set for submodel:UserWarning
+    ignore:Assuming missing concentrations for the following metabolites .*:UserWarning
diff --git a/tests/test_io.py b/tests/test_io.py
index 974f3b4..77a142f 100644
--- a/tests/test_io.py
+++ b/tests/test_io.py
@@ -292,9 +292,6 @@ def test_read_write(self):
             for i_row, (copy_row, original_row) in enumerate(zip(copy[sheet], original[sheet])):
                 self.assertEqual(copy_row, original_row, 
                     msg='Rows {} of {} sheets are not equal'.format(i_row, sheet))
-            print(sheet)
-            print(copy[sheet])
-            print(original[sheet])
             self.assertEqual(copy[sheet], original[sheet], msg='{} sheets are not equal'.format(sheet))
 
         self.assertEqual(copy, original)