From: Raymond Hettinger <python@rcn.com>
Date: Thu, 20 May 2004 23:04:13 +0000 (+0000)
Subject: Add a test to verify an early call to iter() on the outermost for
X-Git-Tag: v2.4a1~352
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=83ee79524ae6462b7b044bb9cf2f625231814dba;p=python

Add a test to verify an early call to iter() on the outermost for
expression.
---

diff --git a/Lib/test/test_genexps.py b/Lib/test/test_genexps.py
index b09fc952bf..31e133fe75 100644
--- a/Lib/test/test_genexps.py
+++ b/Lib/test/test_genexps.py
@@ -91,6 +91,15 @@ Verify early binding for the outermost for-expression
     >>> list(g)
     [0, 1, 4, 9, 16, 25, 36, 49, 64, 81]
 
+Verify that the outermost for-expression makes an immediate check
+for iterability
+
+    >>> (i for i in 6)
+    Traceback (most recent call last):
+      File "<pyshell#4>", line 1, in -toplevel-
+        (i for i in 6)
+    TypeError: iteration over non-sequence
+
 Verify late binding for the outermost if-expression
 
     >>> include = (2,4,6,8)