diff --git a/native/pkg_a/setup.py b/native/pkg_a/setup.py
index d2f782a..8021a7a 100644
--- a/native/pkg_a/setup.py
+++ b/native/pkg_a/setup.py
@@ -28,5 +28,6 @@
 
     license='Apache Software License',
 
-    packages=['example_pkg.a']
+    packages=['example_pkg.a'],
+    zip_safe=False,
 )
diff --git a/native/pkg_b/setup.py b/native/pkg_b/setup.py
index 6293e85..872122a 100644
--- a/native/pkg_b/setup.py
+++ b/native/pkg_b/setup.py
@@ -29,4 +29,5 @@
     license='Apache Software License',
 
     packages=['example_pkg.b'],
+    zip_safe=False,
 )
diff --git a/pkg_resources/pkg_a/setup.py b/pkg_resources/pkg_a/setup.py
index 0c9d43a..1cd580c 100644
--- a/pkg_resources/pkg_a/setup.py
+++ b/pkg_resources/pkg_a/setup.py
@@ -29,5 +29,6 @@
     license='Apache Software License',
 
     packages=find_packages(),
-    namespace_packages=['example_pkg']
+    namespace_packages=['example_pkg'],
+    zip_safe=False,
 )
diff --git a/pkg_resources/pkg_b/setup.py b/pkg_resources/pkg_b/setup.py
index 22e0510..03444e1 100644
--- a/pkg_resources/pkg_b/setup.py
+++ b/pkg_resources/pkg_b/setup.py
@@ -29,5 +29,6 @@
     license='Apache Software License',
 
     packages=find_packages(),
-    namespace_packages=['example_pkg']
+    namespace_packages=['example_pkg'],
+    zip_safe=False,
 )
diff --git a/pkgutil/pkg_a/setup.py b/pkgutil/pkg_a/setup.py
index cca30f1..27b9352 100644
--- a/pkgutil/pkg_a/setup.py
+++ b/pkgutil/pkg_a/setup.py
@@ -29,4 +29,5 @@
     license='Apache Software License',
 
     packages=find_packages(),
+    zip_safe=False,
 )
diff --git a/pkgutil/pkg_b/setup.py b/pkgutil/pkg_b/setup.py
index 7eeb5a1..88d3397 100644
--- a/pkgutil/pkg_b/setup.py
+++ b/pkgutil/pkg_b/setup.py
@@ -29,4 +29,5 @@
     license='Apache Software License',
 
     packages=find_packages(),
+    zip_safe=False,
 )
diff --git a/table.md b/table.md
index 3678c5b..a739166 100644
--- a/table.md
+++ b/table.md
@@ -24,10 +24,10 @@
 | cross_pep420_pkgutil | python3 | pip install -e . | pip install -e . | ✅ |
 | cross_pep420_pkgutil | python3 | pip install -e . | python setup.py install | ✅ |
 | cross_pep420_pkgutil | python3 | pip install -e . | python setup.py develop | ✅ |
-| cross_pep420_pkgutil | python3 | python setup.py install | pip install . | ❌ |
-| cross_pep420_pkgutil | python3 | python setup.py install | pip install -e . | ❌ |
-| cross_pep420_pkgutil | python3 | python setup.py install | python setup.py install | ❌ |
-| cross_pep420_pkgutil | python3 | python setup.py install | python setup.py develop | ❌ |
+| cross_pep420_pkgutil | python3 | python setup.py install | pip install . | ✅ |
+| cross_pep420_pkgutil | python3 | python setup.py install | pip install -e . | ✅ |
+| cross_pep420_pkgutil | python3 | python setup.py install | python setup.py install | ✅ |
+| cross_pep420_pkgutil | python3 | python setup.py install | python setup.py develop | ✅ |
 | cross_pep420_pkgutil | python3 | python setup.py develop | pip install . | ✅ |
 | cross_pep420_pkgutil | python3 | python setup.py develop | pip install -e . | ✅ |
 | cross_pep420_pkgutil | python3 | python setup.py develop | python setup.py install | ✅ |
@@ -40,7 +40,7 @@
 | cross_pkg_resources_pkgutil | python2 | pip install -e . | pip install -e . | ❌ |
 | cross_pkg_resources_pkgutil | python2 | pip install -e . | python setup.py install | ❌ |
 | cross_pkg_resources_pkgutil | python2 | pip install -e . | python setup.py develop | ❌ |
-| cross_pkg_resources_pkgutil | python2 | python setup.py install | pip install . | ❌ |
+| cross_pkg_resources_pkgutil | python2 | python setup.py install | pip install . | ✅ |
 | cross_pkg_resources_pkgutil | python2 | python setup.py install | pip install -e . | ✅ |
 | cross_pkg_resources_pkgutil | python2 | python setup.py install | python setup.py install | ✅ |
 | cross_pkg_resources_pkgutil | python2 | python setup.py install | python setup.py develop | ✅ |
@@ -56,7 +56,7 @@
 | cross_pkg_resources_pkgutil | python3 | pip install -e . | pip install -e . | ❌ |
 | cross_pkg_resources_pkgutil | python3 | pip install -e . | python setup.py install | ❌ |
 | cross_pkg_resources_pkgutil | python3 | pip install -e . | python setup.py develop | ❌ |
-| cross_pkg_resources_pkgutil | python3 | python setup.py install | pip install . | ❌ |
+| cross_pkg_resources_pkgutil | python3 | python setup.py install | pip install . | ✅ |
 | cross_pkg_resources_pkgutil | python3 | python setup.py install | pip install -e . | ✅ |
 | cross_pkg_resources_pkgutil | python3 | python setup.py install | python setup.py install | ✅ |
 | cross_pkg_resources_pkgutil | python3 | python setup.py install | python setup.py develop | ✅ |
@@ -82,19 +82,19 @@
 | pep420 | python2 | python setup.py develop | python setup.py develop | ❌ |
 | pep420 | python3 | pip install . | pip install . | ✅ |
 | pep420 | python3 | pip install . | pip install -e . | ✅ |
-| pep420 | python3 | pip install . | python setup.py install | ❌ |
+| pep420 | python3 | pip install . | python setup.py install | ✅ |
 | pep420 | python3 | pip install . | python setup.py develop | ✅ |
 | pep420 | python3 | pip install -e . | pip install . | ✅ |
 | pep420 | python3 | pip install -e . | pip install -e . | ✅ |
-| pep420 | python3 | pip install -e . | python setup.py install | ❌ |
+| pep420 | python3 | pip install -e . | python setup.py install | ✅ |
 | pep420 | python3 | pip install -e . | python setup.py develop | ✅ |
-| pep420 | python3 | python setup.py install | pip install . | ❌ |
-| pep420 | python3 | python setup.py install | pip install -e . | ❌ |
-| pep420 | python3 | python setup.py install | python setup.py install | ❌ |
-| pep420 | python3 | python setup.py install | python setup.py develop | ❌ |
+| pep420 | python3 | python setup.py install | pip install . | ✅ |
+| pep420 | python3 | python setup.py install | pip install -e . | ✅ |
+| pep420 | python3 | python setup.py install | python setup.py install | ✅ |
+| pep420 | python3 | python setup.py install | python setup.py develop | ✅ |
 | pep420 | python3 | python setup.py develop | pip install . | ✅ |
 | pep420 | python3 | python setup.py develop | pip install -e . | ✅ |
-| pep420 | python3 | python setup.py develop | python setup.py install | ❌ |
+| pep420 | python3 | python setup.py develop | python setup.py install | ✅ |
 | pep420 | python3 | python setup.py develop | python setup.py develop | ✅ |
 | pkg_resources | python2 | pip install . | pip install . | ✅ |
 | pkg_resources | python2 | pip install . | pip install -e . | ✅ |
@@ -130,33 +130,33 @@
 | pkg_resources | python3 | python setup.py develop | python setup.py develop | ✅ |
 | pkgutil | python2 | pip install . | pip install . | ✅ |
 | pkgutil | python2 | pip install . | pip install -e . | ✅ |
-| pkgutil | python2 | pip install . | python setup.py install | ❌ |
+| pkgutil | python2 | pip install . | python setup.py install | ✅ |
 | pkgutil | python2 | pip install . | python setup.py develop | ✅ |
 | pkgutil | python2 | pip install -e . | pip install . | ✅ |
 | pkgutil | python2 | pip install -e . | pip install -e . | ✅ |
-| pkgutil | python2 | pip install -e . | python setup.py install | ❌ |
+| pkgutil | python2 | pip install -e . | python setup.py install | ✅ |
 | pkgutil | python2 | pip install -e . | python setup.py develop | ✅ |
-| pkgutil | python2 | python setup.py install | pip install . | ❌ |
+| pkgutil | python2 | python setup.py install | pip install . | ✅ |
 | pkgutil | python2 | python setup.py install | pip install -e . | ✅ |
-| pkgutil | python2 | python setup.py install | python setup.py install | ❌ |
+| pkgutil | python2 | python setup.py install | python setup.py install | ✅ |
 | pkgutil | python2 | python setup.py install | python setup.py develop | ✅ |
 | pkgutil | python2 | python setup.py develop | pip install . | ✅ |
 | pkgutil | python2 | python setup.py develop | pip install -e . | ✅ |
-| pkgutil | python2 | python setup.py develop | python setup.py install | ❌ |
+| pkgutil | python2 | python setup.py develop | python setup.py install | ✅ |
 | pkgutil | python2 | python setup.py develop | python setup.py develop | ✅ |
 | pkgutil | python3 | pip install . | pip install . | ✅ |
 | pkgutil | python3 | pip install . | pip install -e . | ✅ |
-| pkgutil | python3 | pip install . | python setup.py install | ❌ |
+| pkgutil | python3 | pip install . | python setup.py install | ✅ |
 | pkgutil | python3 | pip install . | python setup.py develop | ✅ |
 | pkgutil | python3 | pip install -e . | pip install . | ✅ |
 | pkgutil | python3 | pip install -e . | pip install -e . | ✅ |
-| pkgutil | python3 | pip install -e . | python setup.py install | ❌ |
+| pkgutil | python3 | pip install -e . | python setup.py install | ✅ |
 | pkgutil | python3 | pip install -e . | python setup.py develop | ✅ |
-| pkgutil | python3 | python setup.py install | pip install . | ❌ |
+| pkgutil | python3 | python setup.py install | pip install . | ✅ |
 | pkgutil | python3 | python setup.py install | pip install -e . | ✅ |
-| pkgutil | python3 | python setup.py install | python setup.py install | ❌ |
+| pkgutil | python3 | python setup.py install | python setup.py install | ✅ |
 | pkgutil | python3 | python setup.py install | python setup.py develop | ✅ |
 | pkgutil | python3 | python setup.py develop | pip install . | ✅ |
 | pkgutil | python3 | python setup.py develop | pip install -e . | ✅ |
-| pkgutil | python3 | python setup.py develop | python setup.py install | ❌ |
+| pkgutil | python3 | python setup.py develop | python setup.py install | ✅ |
 | pkgutil | python3 | python setup.py develop | python setup.py develop | ✅ |