check win32clipboard existence instead of platform==win32

IPython/Extensions/ipy_render.py

@@ -1,45 +1,50 b''
 #!/usr/bin/env python
 
 import IPython.ipapi
 
 ip = IPython.ipapi.get()
 
 from string import Template
 import sys
 
 def toclip_w32(s):
-    """ places contents of s to clipboard """
+    """ places contents of s to clipboard
+    
+    Needs pyvin32 to work:
+    http://sourceforge.net/projects/pywin32/
+    """
     import win32clipboard as cl
     import win32con
     cl.OpenClipboard()
     cl.EmptyClipboard()
     cl.SetClipboardText( s )
     cl.CloseClipboard()
 
-if sys.platform == 'win32':
+try:
+    import win32clipboard    
     toclip = toclip_w32
-else:
+except ImportError:
     def toclip(s): pass
     
 
 def render(tmpl):
     """ Render a template (as specified in string.Template docs) from ipython variables
 
     Example:
     
     $ import ipy_render
     $ my_name = 'Bob'  # %store this for convenience
     $ t_submission_form = "Submission report, author: $my_name"  # %store also
     $ render t_submission_form
     
     => returns "Submission report, author: Bob" and copies to clipboard on win32
     
     """
     
     s = Template(tmpl)
     res = s.substitute(ip.user_ns)
     toclip(res)
     return res
 
-ip.user_ns['render'] = render
+ip.to_user_ns('render')
     
  No newline at end of file