diff -r 7050c9fc1f72 Lib/urllib.py
--- a/Lib/urllib.py	Wed May 04 11:28:09 2016 +0300
+++ b/Lib/urllib.py	Wed May 04 17:26:54 2016 -0700
@@ -932,13 +932,7 @@
         return (ftpobj, retrlen)
 
     def endtransfer(self):
-        if not self.busy:
-            return
         self.busy = 0
-        try:
-            self.ftp.voidresp()
-        except ftperrors():
-            pass
 
     def close(self):
         self.keepalive = False
diff -r 7050c9fc1f72 Misc/NEWS
--- a/Misc/NEWS	Wed May 04 11:28:09 2016 +0300
+++ b/Misc/NEWS	Wed May 04 17:26:54 2016 -0700
@@ -9,6 +9,8 @@
 
 Core and Builtins
 -----------------
+- Issue #26960: Backported #16270 from Python 3 to Python 2, to prevent
+  urllib from hanging when retrieving certain FTP files.
 
 - Issue #4806: Avoid masking the original TypeError exception when using star
   (*) unpacking and the exception was raised from a generator.  Based on