<div dir="ltr">Definitely agree with wanting to move on and focus on Python 3.<div><br></div><div>I design my stuff with Python 3 first in mind, but reality tells me I need to keep supporting Python 2 users, even if that means uglifying front-page examples with things such as sigtools.modifiers.kwoargs. The existence of this thread and of some of the emails in the "signature documentation" thread only serves as proof that I'd confuse too many by keeping "kwoargs" & co a side-note.</div><div><br></div><div>Developing on Python 3.4 is great, things like chained tracebacks are fantastic. If I can do it on Python 3, I will. But what if I want to deploy to GAE? Stuck with 2.7. So are many users.</div><div><br></div><div>It's ugly, it sucks, but so far it is out of my hands and necessary.</div></div><br><div class="gmail_quote"><div dir="ltr">On Sat, 20 Jun 2015 at 20:13 Philipp A. <<a href="mailto:flying-sheep@web.de">flying-sheep@web.de</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><p style="margin:1.2em 0px!important">OK, i think it’s time to finally switch to python 3 instead of writing more horrible crutches:</p>
<pre style="font-size:0.85em;font-family:Consolas,Inconsolata,Courier,monospace;font-size:1em;line-height:1.2em;margin:1.2em 0px"><code style="font-size:0.85em;font-family:Consolas,Inconsolata,Courier,monospace;margin:0px 0.15em;padding:0px 0.3em;white-space:pre-wrap;border:1px solid rgb(234,234,234);background-color:rgb(248,248,248);border-radius:3px;display:inline;white-space:pre-wrap;overflow:auto;border-radius:3px;border:1px solid rgb(204,204,204);padding:0.5em 0.7em;display:block!important;display:block;overflow-x:auto;padding:0.5em;color:rgb(51,51,51);background:rgb(248,248,248) none repeat scroll 0% 0%"><span style="color:rgb(153,153,136);font-style:italic"># coding: utf-8</span>
<span style="color:rgb(51,51,51);font-weight:bold">from</span> __future__ <span style="color:rgb(51,51,51);font-weight:bold">import</span> absolute_import, division, print_function, unicode_literals
<span style="color:rgb(51,51,51);font-weight:bold">from</span> builtins <span style="color:rgb(51,51,51);font-weight:bold">import</span> *

<span style="color:rgb(51,51,51);font-weight:bold">import</span> trollius
<span style="color:rgb(51,51,51);font-weight:bold">from</span> trollius <span style="color:rgb(51,51,51);font-weight:bold">import</span> From, Return

<span style="color:rgb(51,51,51);font-weight:bold">from</span> other <span style="color:rgb(51,51,51);font-weight:bold">import</span> stuff

<span>@trollius.coroutine</span>
<span>@modifiers.kwoargs('b')</span>
<span><span style="color:rgb(51,51,51);font-weight:bold">def</span> <span style="color:rgb(153,0,0);font-weight:bold">awesome_stuff</span><span>(a, b=<span style="color:rgb(0,128,128)">5</span>)</span>:</span>
    res = (<span style="color:rgb(51,51,51);font-weight:bold">yield</span> From(stuff()))
    <span style="color:rgb(51,51,51);font-weight:bold">raise</span> Return(res)
</code></pre>
<p style="margin:1.2em 0px!important">vs.</p>
<pre style="font-size:0.85em;font-family:Consolas,Inconsolata,Courier,monospace;font-size:1em;line-height:1.2em;margin:1.2em 0px"><code style="font-size:0.85em;font-family:Consolas,Inconsolata,Courier,monospace;margin:0px 0.15em;padding:0px 0.3em;white-space:pre-wrap;border:1px solid rgb(234,234,234);background-color:rgb(248,248,248);border-radius:3px;display:inline;white-space:pre-wrap;overflow:auto;border-radius:3px;border:1px solid rgb(204,204,204);padding:0.5em 0.7em;display:block!important;display:block;overflow-x:auto;padding:0.5em;color:rgb(51,51,51);background:rgb(248,248,248) none repeat scroll 0% 0%"><span style="color:rgb(51,51,51);font-weight:bold">import</span> asyncio

<span style="color:rgb(51,51,51);font-weight:bold">from</span> other <span style="color:rgb(51,51,51);font-weight:bold">import</span> stuff

<span>@asyncio.coroutine</span>
<span><span style="color:rgb(51,51,51);font-weight:bold">def</span> <span style="color:rgb(153,0,0);font-weight:bold">awesome_stuff</span><span>(a, *, b=<span style="color:rgb(0,128,128)">5</span>)</span>:</span>
    res = (<span style="color:rgb(51,51,51);font-weight:bold">yield</span> <span style="color:rgb(51,51,51);font-weight:bold">from</span> stuff())
    <span style="color:rgb(51,51,51);font-weight:bold">return</span> res
</code></pre>
<p style="margin:1.2em 0px!important">or soon:</p>
<pre style="font-size:0.85em;font-family:Consolas,Inconsolata,Courier,monospace;font-size:1em;line-height:1.2em;margin:1.2em 0px"><code style="font-size:0.85em;font-family:Consolas,Inconsolata,Courier,monospace;margin:0px 0.15em;padding:0px 0.3em;white-space:pre-wrap;border:1px solid rgb(234,234,234);background-color:rgb(248,248,248);border-radius:3px;display:inline;white-space:pre-wrap;overflow:auto;border-radius:3px;border:1px solid rgb(204,204,204);padding:0.5em 0.7em;display:block!important;display:block;overflow-x:auto;padding:0.5em;color:rgb(51,51,51);background:rgb(248,248,248) none repeat scroll 0% 0%"><span style="color:rgb(51,51,51);font-weight:bold">from</span> other <span style="color:rgb(51,51,51);font-weight:bold">import</span> stuff

async <span><span style="color:rgb(51,51,51);font-weight:bold">def</span> <span style="color:rgb(153,0,0);font-weight:bold">awesome_stuff</span><span>(a, *, b=<span style="color:rgb(0,128,128)">5</span>)</span>:</span>
    res = await stuff()
    <span style="color:rgb(51,51,51);font-weight:bold">return</span> res
</code></pre></div></div><div dir="ltr"><div>
<p style="margin:1.2em 0px!important">Yann Kaiser <a href="http://mailto:kaiser.yann@gmail.com" target="_blank">kaiser.yann@gmail.com</a> schrieb am Sa., 20. Juni 2015 um 19:52 Uhr:</p>
<p style="margin:1.2em 0px!important"></p></div></div><div dir="ltr"><div><div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div class="gmail_quote"><div dir="ltr">On Wed, 17 Jun 2015 at 21:33 Nathaniel Smith <<a href="mailto:njs@pobox.com" target="_blank">njs@pobox.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><p dir="ltr">there's really no good way to accomplish kw only args in py2. It can be done, but it's very cumbersome; not like range or print or whatever where you can just import something from six or add some parentheses.</p></blockquote></div></div><div dir="ltr"><div class="gmail_quote"><div>As you correctly point out, it can't be done without friction.</div><div><br></div><div>I've attempted backporting kw-only parameters through decorators:</div><div><br></div><div>from sigtools import modifiers</div><div><br></div><div>@modifiers.kwoargs('kwop')</div><div>def func(abc, kwop):</div><div>    ...</div><div><br></div><div>@modifiers.autokwoargs</div><div>def func(abc, kwop=False):</div><div>    ...</div><div><br></div><div><a href="http://sigtools.readthedocs.org/en/latest/#sigtools.modifiers.kwoargs" target="_blank">http://sigtools.readthedocs.org/en/latest/#sigtools.modifiers.kwoargs</a> </div></div></div></blockquote></div></div></div><div dir="ltr"><div><div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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</blockquote></div>