Make "run_script" a method of WorkingSet objects, thereby removing a global

coupling.

--HG--
branch : setuptools
extra : convert_revision : svn%3A6015fed2-1504-0410-9fe1-9d1591cc4771/sandbox/trunk/setuptools%4041195

pkg_resources.py

@@ -398,13 +398,13 @@ class WorkingSet(object):
             elif name in entries:
                 yield entries[name]
 
-
-
-
-
-
-
-
+    def run_script(self, requires, script_name):
+        """Locate distribution for `requires` and run `script_name` script"""
+        ns = sys._getframe(1).f_globals
+        name = ns['__name__']
+        ns.clear()
+        ns['__name__'] = name
+        self.require(requires)[0].run_script(script_name, ns)
 
 
 
@@ -2147,6 +2147,8 @@ working_set = WorkingSet()
 require = working_set.require
 iter_entry_points = working_set.iter_entry_points
 add_activation_listener = working_set.subscribe
+run_script = working_set.run_script
+run_main = run_script   # backward compatibility
 
 # Activate all distributions already on sys.path, and ensure that
 # all distributions added to the working set in the future (e.g. by
@@ -2169,5 +2171,3 @@ add_activation_listener(lambda dist: dist.activate())
 
 
 
-
-