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diff --git a/scripts/external_libs/nose-1.3.4/python2/nose/plugins/allmodules.py b/scripts/external_libs/nose-1.3.4/python2/nose/plugins/allmodules.py
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+"""Use the AllModules plugin by passing ``--all-modules`` or setting the
+NOSE_ALL_MODULES environment variable to enable collection and execution of
+tests in all python modules. Normal nose behavior is to look for tests only in
+modules that match testMatch.
+
+More information: :doc:`../doc_tests/test_allmodules/test_allmodules`
+
+.. warning ::
+
+   This plugin can have surprising interactions with plugins that load tests
+   from what nose normally considers non-test modules, such as
+   the :doc:`doctest plugin <doctests>`. This is because any given
+   object in a module can't be loaded both by a plugin and the normal nose
+   :class:`test loader <nose.loader.TestLoader>`. Also, if you have functions
+   or classes in non-test modules that look like tests but aren't, you will
+   likely see errors as nose attempts to run them as tests.
+
+"""
+
+import os
+from nose.plugins.base import Plugin
+
+class AllModules(Plugin):
+    """Collect tests from all python modules.
+    """
+    def options(self, parser, env):
+        """Register commandline options.
+        """
+        env_opt = 'NOSE_ALL_MODULES'
+        parser.add_option('--all-modules',
+                          action="store_true",
+                          dest=self.enableOpt,
+                          default=env.get(env_opt),
+                          help="Enable plugin %s: %s [%s]" %
+                          (self.__class__.__name__, self.help(), env_opt))
+
+    def wantFile(self, file):
+        """Override to return True for all files ending with .py"""
+        # always want .py files
+        if file.endswith('.py'):
+            return True
+
+    def wantModule(self, module):
+        """Override return True for all modules"""
+        return True