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Hey Dave,<br>
<br>
thanks a lot for all the help. Without the tab completion/colour it
seems like this is a lot of work for a very plain shell, and Sho
looks like a much better option - I played around with it a fair bit
(it seems better than the plain IronPython console) but I haven't
found much on how to embed it yet. I'll head over to their forums
and see if there is something I am missing.<br>
<br>
Federico<br>
<br>
On 11/02/2011 05:09, Dave Wald wrote:
<blockquote cite="mid:20110211041009.34DF971E@apollo.cosbi.eu"
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<p class="MsoNormal">First off, Thanks to all the developers!
2.7b1 and b2 have been excellent so far, at least as far as my
current needs go. The new subprocess module is great. Came just
in time. Great work!</p>
<p class="MsoNormal">Federico,</p>
<p class="MsoNormal">Your post caught my eye, as I also like good
embeddable console apps. Hadn't used IPython before so I
downloaded it and played with it. Installed the PyReadline
library as recommended to get all the command line goodies.
Nice.</p>
<p class="MsoNormal">OK, so then, of course, I had to try it in
IronPython, and immediately hit the same issues you did, with
almost the exact same traceback info, etc.</p>
<p class="MsoNormal">So, I fired up the excellent Tools for Visual
Studio 2010 and created a little project to embed the shell and
call it from my running IPyScratchPad app (with a WinForms dll
to house the form) and traced thru it in the Debugger.</p>
<p class="MsoNormal">Long story short, I found the major issue
(and a couple of minor ones) and got it to run.</p>
<p class="MsoNormal">Now, I'm pretty sure Readline has not been
ported to IronPython yet, and you know it requires pywin32. So
that is not going to run under IronPython.</p>
<p class="MsoNormal">But the rest of it seems to be working ok. No
tab completion or colorization but...</p>
<p class="MsoNormal">Here's what I did (ultimately) to get it to
run:</p>
<p class="MsoNormal">First of all, copied the whole IPython folder
structure over under "C:\Program Files (x86)\IronPython
2.7\Lib\site-packages".</p>
<p class="MsoNormal">I created a new Scripts folder under
"C:\Program Files (x86)\IronPython 2.7", as IPython creates
under Python 2.6.</p>
<p class="MsoNormal">Copied the<span style=""> </span>following
two files into it:</p>
<p class="MsoNormal"><span style=""> </span>"C:\Python26\Scripts\ipython.py"</p>
<p class="MsoNormal"><span style=""> </span>"C:\Python26\Scripts\ipython.bat"</p>
<p class="MsoNormal">Modified ipython.bat file to read:</p>
<p class="MsoNormal"><span style=""> </span>cd
"C:\Program Files (x86)\IronPython 2.7"</p>
<p class="MsoNormal"><span style=""> </span>ipy.exe
-X:Frames .\Scripts\ipython.py %*</p>
<p class="MsoNormal"> Double-clicking the bat file will now start
up the IPython console running in IPy.exe.</p>
<p class="MsoNormal"> Notice the " -X:Frames " option specified.
That is the major key to this.</p>
<p class="MsoNormal">Turns out, IronPython does not enable
sys._getframe by default, which is required by IPython.</p>
<p class="MsoNormal">Note (from the Python doc):</p>
<p class="MsoNormal">sys._getframe([depth]) </p>
<p class="MsoNormal">Return a frame object from the call stack. If
optional integer depth is given, return the frame object that
many calls below the top of the stack. If that is deeper than
the call stack, ValueError is raised. The default for depth is
zero, returning the frame at the top of the call stack.</p>
<p class="MsoNormal">CPython implementation detail: This function
should be used for internal and specialized purposes only. It is
not guaranteed to exist in all implementations of Python.</p>
<p class="MsoNormal"> <br>
Found a post on StackOverflow, with a reply by Jeff Hardy about
this, which is what tipped me off. Thanks Jeff!</p>
<p class="MsoNormal"><a moz-do-not-send="true"
class="moz-txt-link-freetext"
href="http://stackoverflow.com/questions/3780379/how-can-i-enable-sys-getframe-in-ironpython-2-6-1">http://stackoverflow.com/questions/3780379/how-can-i-enable-sys-getframe-in-ironpython-2-6-1</a></p>
<p class="MsoNormal"> OK, so far so good. </p>
<p class="MsoNormal">Now. Embedding...</p>
<p class="MsoNormal"> I used the simplest example in the IPython
manual pdf, in section "3.2.4 Embedding IPython" on page 32-33.</p>
<p class="MsoNormal">I placed the following code into my app, in a
button-click event handler.</p>
<p class="MsoNormal"> <span style=""> </span>def
testIPyShell(self, sender, event):</p>
<p class="MsoNormal"><span style=""> </span>from
IPython.Shell import IPShellEmbed</p>
<p class="MsoNormal"><span style=""> </span>args =
['-colors','NoColor','-noreadline','-classic','-x','Verbose']</p>
<p class="MsoNormal"><span style=""> </span>ipshell =
IPShellEmbed(args)</p>
<p class="MsoNormal"><span style=""> </span>ipshell()</p>
<p class="MsoNormal">In the Project Properties page, I set
"Command Line Arguments" to -X:Frames and Interpreter Path
to C:\Program Files (x86)\IronPython 2.7\ipy.exe <br>
(which is now 2.7b2) and check the "Debug Standard Library" box.<br>
</p>
<p class="MsoNormal">Hit F5, click the button and it works. The
shell starts up. Main app blocks on it, tho. Hmmm. Well, may be
a way around that too. </p>
<p class="MsoNormal">But it starts up and runs. Type "%magic" or
"?" and it prints out all the doc, etc. Shell commands seem to
work ok.</p>
<p class="MsoNormal">There is a minor issue in file iplib.py, line
646: </p>
<p class="MsoNormal"><span style=""> </span>self.usage_min
=<span style=""> </span>"""\</p>
<p class="MsoNormal">where it continues a multi-line string. The
trailing back irritates the VS2010 Debugger to where it gets out
of sync with the code.</p>
<p class="MsoNormal">I just took it out. If you're not running the
debugger, you probably won't ever notice it.</p>
<p class="MsoNormal">If you ARE running the VS2010 debugger, you
will get all kinds of stoppages, anywhere anything is raised.
And it does that a lot. </p>
<p class="MsoNormal">Just ignore them. Hit the continue button.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">And that's about it. Pretty cool little
console.</p>
<p class="MsoNormal">All that having been said, of course, I think
there may be an even better option. Possibly.<br>
</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Check this out:
<a moz-do-not-send="true" class="moz-txt-link-freetext"
href="http://lists.ironpython.com/pipermail/users-ironpython.com/2011-January/014218.html">http://lists.ironpython.com/pipermail/users-ironpython.com/2011-January/014218.html</a></p>
<p class="MsoNormal">Curt Hagenlocher posted this a couple of
weeks ago. "Sho" is an IronPython shell from MS Research Labs.
Played with it some. It's pretty cool. Very geared towards
math/science/engineering apps.</p>
<p class="MsoNormal">The doc says it can be "embedded", but from
what I have read (haven't tried it yet), it looks like you can
call into it and use it's code and libraries of course, but I
don't think the console will pop up. Don't know for sure. Need
to play with it and see. That's next.<br>
</p>
<p class="MsoNormal">(Also, downloaded SilverShell <a
moz-do-not-send="true" class="moz-txt-link-freetext"
href="http://code.google.com/p/silvershell/">http://code.google.com/p/silvershell/</a>
(written in IronPython and WPF) coupla weeks ago and got it
running under 2.7 - it's nice, but... seems to have some issues.
I think I like Sho better for simplicity and raw power. You
might give 'em a try and see which works better for you.)</p>
<p class="MsoNormal"> <br>
That's all for now. Have fun with IPython. Holler if you have
any questions.</p>
<p class="MsoNormal"> Dave</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"> </p>
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