Add 'ez_setup' bootstrap installer. Prep for 0.4a2 release.

--HG--
branch : setuptools
extra : convert_revision : svn%3A6015fed2-1504-0410-9fe1-9d1591cc4771/sandbox/trunk/setuptools%4041054

1 files changed, 42 insertions, 1 deletions

diff --git a/pkg_resources.py b/pkg_resources.py
index c9270325..e3d106ca 100644
--- a/pkg_resources.py
+++ b/pkg_resources.py
@@ -1307,7 +1307,7 @@ class Distribution(object):
                 )
     version = property(version)
 
-
+        
 
 
     #@property
@@ -1351,6 +1351,47 @@ class Distribution(object):
             fixup_namespace_packages(self.path)
             map(declare_namespace, self._get_metadata('namespace_packages.txt'))
 
+    def egg_name(self):
+        """Return what this distribution's standard .egg filename should be"""
+        filename = "%s-%s-py%s" % (
+            self.name.replace('-','_'), self.version.replace('-','_'),
+            self.py_version or PY_MAJOR
+        )
+
+        if self.platform:
+            filename += '-'+self.platform
+
+        return filename
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 def parse_requirements(strs):
     """Yield ``Requirement`` objects for each specification in `strs`