<div dir="ltr">Hello Everyone,<div><br></div><div>I am following up on this.</div><div><br></div><div>Would you guys be open to a PR making that change?</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Mar 29, 2019 at 6:56 PM Stéphane Mottelet <<a href="mailto:stephane.mottelet@utc.fr">stephane.mottelet@utc.fr</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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<p>Le 29/03/2019 à 18:28, Sylvain Corlay a écrit :<br>
</p>
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<div>Hello, world!</div>
<div><br>
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<div>The Jupyter kernel protocol expect stdout and stderr
streams to be both redirected to the frontend, however, it
makes a distinction between error and output messages in the `<span>stream</span>`
message type:</div>
<div>
<pre style="box-sizing:border-box;font-family:SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",Courier,monospace;font-size:12px;margin-top:0px;margin-bottom:0px;padding:12px;overflow:auto;line-height:normal;color:rgb(64,64,64)"><span class="gmail-m_-5776904969026899736gmail-n" style="box-sizing:border-box">content</span> <span class="gmail-m_-5776904969026899736gmail-o" style="box-sizing:border-box;color:rgb(102,102,102)">=</span> <span class="gmail-m_-5776904969026899736gmail-p" style="box-sizing:border-box">{</span>
<span class="gmail-m_-5776904969026899736gmail-c1" style="box-sizing:border-box;color:rgb(64,128,144);font-style:italic"># The name of the stream is one of 'stdout', 'stderr'</span>
<span class="gmail-m_-5776904969026899736gmail-s1" style="box-sizing:border-box;color:rgb(64,112,160)">'name'</span> <span class="gmail-m_-5776904969026899736gmail-p" style="box-sizing:border-box">:</span> <span class="gmail-m_-5776904969026899736gmail-nb" style="box-sizing:border-box;color:rgb(0,112,32)">str</span><span class="gmail-m_-5776904969026899736gmail-p" style="box-sizing:border-box">,</span>
<span class="gmail-m_-5776904969026899736gmail-c1" style="box-sizing:border-box;color:rgb(64,128,144);font-style:italic"># The text is an arbitrary string to be written to that stream</span>
<span class="gmail-m_-5776904969026899736gmail-s1" style="box-sizing:border-box;color:rgb(64,112,160)">'text'</span> <span class="gmail-m_-5776904969026899736gmail-p" style="box-sizing:border-box">:</span> <span class="gmail-m_-5776904969026899736gmail-nb" style="box-sizing:border-box;color:rgb(0,112,32)">str</span><span class="gmail-m_-5776904969026899736gmail-p" style="box-sizing:border-box">,</span>
<span class="gmail-m_-5776904969026899736gmail-p" style="box-sizing:border-box">}</span></pre>
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<div><br>
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<div>This is reflected graphically in web frontend. See the
following screenshot for example, with the C++ Jupyter kernel:</div>
<div><br>
</div>
<div><img src="cid:16bff57fdf1b3eae97c1" alt="Screenshot from 2019-03-29 18-11-44.png" width="412" height="169"><br>
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<div><br>
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<div>I am writing a scilab Jupyter kernel</div>
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</blockquote>
Glad to hear that, this is a great initiative !<br>
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<div> with the Xeus C++ implementation of the protocol, and the
redirection to the frontend is achieved through the <span style="color:rgb(111,66,193);font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,Courier,monospace;font-size:12px;white-space:pre-wrap">setScilabOutputMethod </span>function
which results in both errors and outputs to be redirected in
the same way.</div>
<div><br>
</div>
<div>It would be great if there was a means to specify to
different functions with e.g. <span style="color:rgb(111,66,193);font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,Courier,monospace;font-size:12px;white-space:pre-wrap">setScilabErrorStreamMethod</span> and <span style="color:rgb(111,66,193);font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,Courier,monospace;font-size:12px;white-space:pre-wrap">setScilabOutputStreamMethod</span>,
and keeping <span style="color:rgb(111,66,193);font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,Courier,monospace;font-size:12px;white-space:pre-wrap">setScilabOutputMethod </span>as
a means to set both at once for backward compatibility.<br>
</div>
<div><br>
</div>
<div>I would love to hear your thoughts on that.</div>
</div>
</blockquote>
Maybe Antoine could answer ?<br>
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<div>Cheers,</div>
<div><br>
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<div>Sylvain</div>
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<br>
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