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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D">To expose a whole namespace the simplest way is probably to call scriptRuntime.LoadAssembly(some_assembly); All of the public types will then be available
for importing from IronPython. That means they won’t all be available at the top-level. If that’s not ok you could use reflection and call DynamicHelpers.GetPythonTypeFromType(…) and inject all the types you want.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D">As for interop the performance should be fine. When using dynamic from C# the overhead should basically be similar to the overhead of calling a function
within Python. And for Python calling into C# the overhead is the same as any Python code calling into any of the runtime – in other words pretty darn fast. For a simple function call to a Python function last I measured I believe it was around 40 instructions
on x86 to perform the call. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D">For example on my laptop this runs in about 1/3 of a second and performs 10 million function calls:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D">import time<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D">def f():<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D"> def g(): pass<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D"> for i in xrange(10000000):
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D"> g()<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D">s = time.clock()<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D">f()<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D">e = time.clock()<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D">print e – s<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D">So what probably matters a lot more is what the function is doing.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:windowtext">From:</span></b><span style="font-size:10.0pt;font-family:
"Tahoma","sans-serif";color:windowtext"> users-bounces@lists.ironpython.com [mailto:users-bounces@lists.ironpython.com]
<b>On Behalf Of </b>Iivari Mokelainen<br>
<b>Sent:</b> Thursday, September 02, 2010 9:29 AM<br>
<b>To:</b> users@lists.ironpython.com<br>
<b>Subject:</b> [IronPython] Integration<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Lucida Console"">Salut, fellow coders!<br>
<br>
I have an application where i need some live coding to debug and use it. I've been coding in C# for ages now.<br>
<br>
I looked into different languages, and found python. And obviously fell in love.<br>
Now i have a home-made interactive python console with my application. I implemented suggestions with dir() and so on.<br>
<br>
tldr:<br>
The problem im facing is that I need to integrate whole application with the console now. I know I can expose types and variables thru scope.SetVariable but what I need is to expose a whole
<i>namespace</i> to the scope.<br>
<br>
Any help would be appreciated.<br>
<br>
P.S. How fast is interop between python and C#? Would it be ok to have a python function as dynamic in C# and calling it about 250 times a second?<br>
<br>
Thanks,<br>
Iivari Mokelainen</span><o:p></o:p></p>
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