Source

shrinkwrap / setup.py

Diff from to

File setup.py

             "shrinkwrap_source_url = shrinkwrap.install:assert_string",
             "shrinkwrap_source_dir = shrinkwrap.install:assert_string",
             "shrinkwrap_installer = shrinkwrap.install:validate_installer_option",
+            "shrinkwrap_skip = shrinkwrap.install:assert_callable",
             "shrinkwrap_requires = setuptools.dist:assert_string_list",
         ],
     },