From: Jeremy Hylton <jeremy@alum.mit.edu>
Date: Mon, 19 Mar 2001 20:42:11 +0000 (+0000)
Subject: Add test for a list comprehension that is nested in the left-hand part
X-Git-Tag: v2.1b2~139
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=e241e29f3d0c4a2e4c7beee018ae409beb4239de;p=thirdparty%2FPython%2Fcpython.git

Add test for a list comprehension that is nested in the left-hand part
of another list comp.  This caused crashes reported as SF bugs 409230
and 407800.

Note that the new tests are in a function so that the name lookup code
isn't affected by how many *other* list comprehensions are in the same
scope.
---

diff --git a/Lib/test/output/test_grammar b/Lib/test/output/test_grammar
index 927b4feb9447..5d0c17707dd9 100644
--- a/Lib/test/output/test_grammar
+++ b/Lib/test/output/test_grammar
@@ -60,4 +60,5 @@ classdef
 [(1, 'Apple'), (1, 'Banana'), (1, 'Coconut'), (2, 'Apple'), (2, 'Banana'), (2, 'Coconut'), (3, 'Apple'), (3, 'Banana'), (3, 'Coconut'), (4, 'Apple'), (4, 'Banana'), (4, 'Coconut'), (5, 'Apple'), (5, 'Banana'), (5, 'Coconut')]
 [(1, 'Banana'), (1, 'Coconut'), (2, 'Banana'), (2, 'Coconut'), (3, 'Banana'), (3, 'Coconut'), (4, 'Banana'), (4, 'Coconut'), (5, 'Banana'), (5, 'Coconut')]
 [0, 0, 0]
+[[1, 2], [3, 4], [5, 6]]
 [('Boeing', 'Airliner'), ('Boeing', 'Engine'), ('Ford', 'Engine'), ('Macdonalds', 'Cheeseburger')]
diff --git a/Lib/test/test_grammar.py b/Lib/test/test_grammar.py
index 75a55b963c61..04b14318fd21 100644
--- a/Lib/test/test_grammar.py
+++ b/Lib/test/test_grammar.py
@@ -661,6 +661,11 @@ def test_in_func(l):
 
 print test_in_func(nums)
 
+def test_nested_front():
+    print [[y for y in [x, x + 1]] for x in [1,3,5]]
+
+test_nested_front()
+
 check_syntax("[i, s for i in nums for s in strs]")
 check_syntax("[x if y]")