[Assorted-commits] SF.net SVN: assorted:[1041] sandbox/trunk/src/py/module-globals

[<yan...@us...>]

Revision: 1041
          http://assorted.svn.sourceforge.net/assorted/?rev=1041&view=rev
Author:   yangzhang
Date:     2008-10-27 20:20:21 +0000 (Mon, 27 Oct 2008)

Log Message:
-----------
extended the global modules demo

Modified Paths:
--------------
    sandbox/trunk/src/py/module-globals/globs.py
    sandbox/trunk/src/py/module-globals/main.py

Modified: sandbox/trunk/src/py/module-globals/globs.py
===================================================================
--- sandbox/trunk/src/py/module-globals/globs.py	2008-10-27 07:19:30 UTC (rev 1040)
+++ sandbox/trunk/src/py/module-globals/globs.py	2008-10-27 20:20:21 UTC (rev 1041)
@@ -1,3 +1,5 @@
 def foo():
   global x
   x = 'hello'
+
+v = raw_input()

Modified: sandbox/trunk/src/py/module-globals/main.py
===================================================================
--- sandbox/trunk/src/py/module-globals/main.py	2008-10-27 07:19:30 UTC (rev 1040)
+++ sandbox/trunk/src/py/module-globals/main.py	2008-10-27 20:20:21 UTC (rev 1041)
@@ -3,7 +3,14 @@
 # Demonstrates that an imported module cannot affect the globals seen by the
 # outer (importing) modules.
 
+# Also demonstrates that you can change things like sys.stdin out from under
+# another module before importing, so that even their in-line code is affected.
+from cStringIO import StringIO
+import sys
+sys.stdin = StringIO('abc')
 from globs import *
+import globs
+assert v == 'abc'
 
 def bar():
   global x
@@ -11,13 +18,14 @@
 
 def main():
   global x
+  x = 0
 
-  # This doesn't work:
-  # foo()
-  # print x
+  foo()         # affects only globs' x
+  print x       # prints 0, not 'hello'
+  print globs.x # prints 'hello'
 
-  # Only this works:
-  bar()
-  print x
+  bar()         # affects this module's x
+  print x       # prints 3
+  print globs.x # prints 'hello'
 
 main()


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