---
 isbnlib/_openl.py                    |    3 +++
 isbnlib/test/test_cache_decorator.py |    2 ++
 isbnlib/test/test_editions.py        |    5 +++++
 isbnlib/test/test_ext.py             |    4 +++-
 isbnlib/test/test_goom.py            |    2 ++
 isbnlib/test/test_metadata.py        |    1 +
 isbnlib/test/test_openl.py           |    1 +
 isbnlib/test/test_rename.py          |    4 ++++
 isbnlib/test/test_webservice.py      |    2 ++
 isbnlib/test/test_wiki.py            |    2 ++
 isbnlib/test/test_words.py           |    2 ++
 setup.cfg                            |    3 +++
 12 files changed, 30 insertions(+), 1 deletion(-)

--- a/isbnlib/_openl.py
+++ b/isbnlib/_openl.py
@@ -4,6 +4,8 @@
 import logging
 import re
 
+import pytest
+
 from .dev import stdmeta
 from .dev._bouth23 import u
 from .dev._exceptions import RecordMappingError
@@ -72,6 +74,7 @@ def _records(isbn, data):
     return _mapper(isbn, records)
 
 
+@pytest.mark.network
 def query(isbn):
     """Query the openlibrary.org service for metadata."""
     data = wquery(SERVICE_URL.format(isbn=isbn), user_agent=UA)
--- a/isbnlib/test/test_cache_decorator.py
+++ b/isbnlib/test/test_cache_decorator.py
@@ -2,6 +2,7 @@
 # flake8: noqa
 # pylint: skip-file
 """Tests for the @cache."""
+import pytest
 
 # TODO add more tests for other operations
 
@@ -9,6 +10,7 @@ from .. import classify, meta, registry
 
 cache = registry.metadata_cache
 
+pytestmark = pytest.mark.network
 
 def setup_module():
     meta('9780375869020')  #  <-- set
--- a/isbnlib/test/test_editions.py
+++ b/isbnlib/test/test_editions.py
@@ -22,21 +22,25 @@ def test_editions_openl():
     assert (len(editions('9780151446476', service='openl')) >= 1) == True
 
 
+@pytest.mark.network
 def test_editions_thingl():
     """Test the 'thingl editions' service."""
     assert (len(editions('9780151446476', service='thingl')) > 2) == True
 
 
+@pytest.mark.network
 def test_editions_wiki():
     """Test the 'wiki editions' service."""
     assert (len(editions('9780440414803', service='wiki')) > 5) == True
 
 
+@pytest.mark.network
 def test_editions_any():
     """Test the 'any editions' service."""
     assert (len(editions('9780151446476', service='any')) > 1) == True
 
 
+@pytest.mark.network
 def test_editions_merge():
     """Test the 'merge editions' service."""
     assert (len(editions('9780151446476', service='merge')) > 2) == True
@@ -54,6 +58,7 @@ def test_editions_NotRecognizedServiceEr
         editions('9780156001311', service='xxx')
 
 
+@pytest.mark.network
 def test_cache():
     """Test the 'editions' cache."""
     t = timer()
--- a/isbnlib/test/test_ext.py
+++ b/isbnlib/test/test_ext.py
@@ -38,7 +38,7 @@ def test_mask():
     with pytest.raises(Exception):
         mask('0000000000000')
 
-
+@pytest.mark.network
 def test_isbn_from_words():
     """Test 'isbn_from_words' command."""
     assert len(isbn_from_words('old men and sea')) == 13
@@ -51,12 +51,14 @@ def test_doi():
     assert doi('9791090636071') == '10.979.1090636/071'
 
 
+@pytest.mark.network
 def test_desc():
     """Test 'desc' command."""
     assert (len(desc('9780156001311')) > 10) == True
     assert desc('9780000000000') == ''
 
 
+@pytest.mark.network
 def test_cover():
     """Test 'cover' command."""
     assert (len(repr(cover('9780156001311'))) > 50) == True
--- a/isbnlib/test/test_goom.py
+++ b/isbnlib/test/test_goom.py
@@ -4,9 +4,11 @@
 """
 tests
 """
+import pytest
 
 from .. import _goom as goom
 
+pytestmark = pytest.mark.network
 
 def test_goom():
     """Test the Google's Multiple Books service."""
--- a/isbnlib/test/test_metadata.py
+++ b/isbnlib/test/test_metadata.py
@@ -10,6 +10,7 @@ import pytest
 from .._ext import meta
 from .._metadata import query
 
+pytestmark = pytest.mark.network
 
 def test_query():
     """Test the query of metadata with 'low level' queries."""
--- a/isbnlib/test/test_openl.py
+++ b/isbnlib/test/test_openl.py
@@ -9,6 +9,7 @@ import pytest
 
 from .._metadata import query
 
+pytestmark = pytest.mark.network
 
 def test_query():
     """Test 'openl' metadata service."""
--- a/isbnlib/test/test_rename.py
+++ b/isbnlib/test/test_rename.py
@@ -12,6 +12,10 @@ from .._ext import ren
 from ..dev._bouth23 import b2u3
 from ..dev.helpers import cwdfiles
 
+import pytest
+
+pytestmark = pytest.mark.network
+
 WINDOWS = os.name == 'nt'
 ENCODING = locale.getpreferredencoding()
 if ENCODING != 'UTF-8':
--- a/isbnlib/test/test_webservice.py
+++ b/isbnlib/test/test_webservice.py
@@ -4,9 +4,11 @@
 """
 tests
 """
+import pytest
 
 from ..dev.webservice import query as wsquery
 
+pytestmark = pytest.mark.network
 
 def test_webservice():
     """Test that values can be passed to a WebService query."""
--- a/isbnlib/test/test_wiki.py
+++ b/isbnlib/test/test_wiki.py
@@ -2,9 +2,11 @@
 # flake8: noqa
 # pylint: skip-file
 """ tests for wikipedia."""
+import pytest
 
 from .._metadata import query
 
+pytestmark = pytest.mark.network
 
 def test_query():
     """Test 'wiki' metadata service."""
--- a/isbnlib/test/test_words.py
+++ b/isbnlib/test/test_words.py
@@ -4,9 +4,11 @@
 """
 tests
 """
+import pytest
 
 from .. import _gwords as words
 
+pytestmark = pytest.mark.network
 
 def test_words():
     """Test 'isbn_from_words' function."""
--- a/setup.cfg
+++ b/setup.cfg
@@ -57,6 +57,9 @@ ignore=
     W503
 extend-ignore=E203,S001
 
+[tool:pytest]
+markers =
+    network: tests requiring network connection
 
 [pep8]
 ignore=E701,E70,E702,W503