- Small fix to demos to flush stdout on each printed block.

IPython/demo.py

@@ -242,6 +242,7 b' class Demo:'
         print marquee('<%s> block # %s (%s remaining)' %
                       (self.fname,index,self.nblocks-index-1))
         print self.src_blocks_colored[index],
+        sys.stdout.flush()
 
     def show_all(self):
         """Show entire demo on screen, block by block"""
@@ -257,6 +258,7 b' class Demo:'
                 print marquee('<%s> block # %s (%s remaining)' %
                               (fname,index,nblocks-index-1))
             print block,
+        sys.stdout.flush()
             
     def __call__(self,index=None):
         """run a block of the demo.

doc/ChangeLog

@@ -1,3 +1,8 b''
[phone]  Fernando Perez  <[e-mail]>
+
+	* IPython/demo.py (Demo.show): Flush stdout after each block, so
+	computationally intensive blocks don't appear to stall the demo.
+
 2006-01-24  Ville Vainio  <[e-mail]>  
 
 	* iplib.py, hooks.py: 'result_display' hook can return a non-None