diff --git a/Lib/distutils/config.py b/Lib/distutils/config.py
index 382aca8fc12..f0c73731713 100644
--- a/Lib/distutils/config.py
+++ b/Lib/distutils/config.py
@@ -4,7 +4,7 @@
 that uses .pypirc in the distutils.command package.
 """
 import os
-from configparser import ConfigParser
+from configparser import RawConfigParser
 
 from distutils.cmd import Command
 
@@ -53,7 +53,7 @@ def _read_pypirc(self):
             repository = self.repository or self.DEFAULT_REPOSITORY
             realm = self.realm or self.DEFAULT_REALM
 
-            config = ConfigParser()
+            config = RawConfigParser()
             config.read(rc)
             sections = config.sections()
             if 'distutils' in sections:
diff --git a/Misc/NEWS b/Misc/NEWS
index 86b9789b3a1..2993c663310 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -10,6 +10,12 @@ Release date: tba
 Core and Builtins
 -----------------
 
+- Issue #20120: Use RawConfigParser for .pypirc parsing,
+  removing support for interpolation unintentionally added
+  with move to Python 3. Behavior no longer does any
+  interpolation in .pypirc files, matching behavior in Python
+  2.7 and Setuptools 19.0.
+
 - Issue #26659: Make the builtin slice type support cycle collection.
 
 - Issue #26718: super.__init__ no longer leaks memory if called multiple times.