changeset:   100158:980ea968444c
branch:      3.5
parent:      100155:64417e7a1760
user:        Yury Selivanov <yselivanov@sprymix.com>
date:        Thu Feb 04 14:00:26 2016 -0500
files:       Lib/rlcompleter.py Lib/test/test_rlcompleter.py
description:
Issue #25660: Fix a unittest and rlcompleter when readline isn't available


diff -r 64417e7a1760 -r 980ea968444c Lib/rlcompleter.py
--- a/Lib/rlcompleter.py	Thu Feb 04 01:23:05 2016 -0500
+++ b/Lib/rlcompleter.py	Thu Feb 04 14:00:26 2016 -0500
@@ -75,9 +75,12 @@
 
         if not text.strip():
             if state == 0:
-                readline.insert_text('\t')
-                readline.redisplay()
-                return ''
+                if _readline_available:
+                    readline.insert_text('\t')
+                    readline.redisplay()
+                    return ''
+                else:
+                    return '\t'
             else:
                 return None
 
@@ -170,10 +173,11 @@
 try:
     import readline
 except ImportError:
-    pass
+    _readline_available = False
 else:
     readline.set_completer(Completer().complete)
     # Release references early at shutdown (the readline module's
     # contents are quasi-immortal, and the completer function holds a
     # reference to globals).
     atexit.register(lambda: readline.set_completer(None))
+    _readline_available = True
diff -r 64417e7a1760 -r 980ea968444c Lib/test/test_rlcompleter.py
--- a/Lib/test/test_rlcompleter.py	Thu Feb 04 01:23:05 2016 -0500
+++ b/Lib/test/test_rlcompleter.py	Thu Feb 04 14:00:26 2016 -0500
@@ -1,4 +1,5 @@
 import unittest
+import unittest.mock
 import builtins
 import rlcompleter
 
@@ -77,6 +78,7 @@
         self.assertEqual(completer.complete('f.b', 0), 'f.bar')
         self.assertEqual(f.calls, 1)
 
+    @unittest.mock.patch('rlcompleter._readline_available', False)
     def test_complete(self):
         completer = rlcompleter.Completer()
         self.assertEqual(completer.complete('', 0), '\t')