make sure we don't use getheaders(). get() works for all py versions - fixes #206

--HG--
branch : distribute
extra : rebase_source : c9e414a0642dd5b2222dd3fc4aa1b11a442e48a1

CHANGES.txt

@@ -6,7 +6,8 @@ CHANGES
 0.6.19
 ------
 
-* ADD STUFF HERE
+* Issue 206: AttributeError: 'HTTPMessage' object has no attribute 'getheaders'
+
 
 ------
 0.6.18

distribute.egg-info/entry_points.txt

@@ -32,7 +32,7 @@ depends.txt = setuptools.command.egg_info:warn_depends_obsolete
 
 [console_scripts]
 easy_install = setuptools.command.easy_install:main
-easy_install-2.6 = setuptools.command.easy_install:main
+easy_install-2.7 = setuptools.command.easy_install:main
 
 [setuptools.file_finders]
 svn_cvs = setuptools.command.sdist:_default_revctrl

setuptools/package_index.py

@@ -580,7 +580,7 @@ class PackageIndex(Environment):
             size = -1
             if "content-length" in headers:
                 # Some servers return multiple Content-Length headers :(
-                content_length = headers.getheaders("Content-Length")[0]
+                content_length = headers.get("Content-Length")
                 size = int(content_length)
                 self.reporthook(url, filename, blocknum, bs, size)
             tfp = open(filename,'wb')