Would __iadd__ and __isub__ be added to collections.abc.MutableMapping?<br><br>This would be consistent with other infix operations on mutable ABCs, but could potentially break backwards compatibility for anyone who has defined a MutableMapping subclass that implements __add__ but not __iadd__. <br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, Mar 9, 2019 at 8:55 AM Steven D&#39;Aprano &lt;<a href="mailto:steve@pearwood.info">steve@pearwood.info</a>&gt; wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Thanks to everyone who has contributed to the discussion, I have been <br>
reading all the comments even if I haven&#39;t responded.<br>
<br>
I&#39;m currently working on an update to the PEP which will, I hope, <br>
improve some of the failings of the current draft.<br>
<br>
<br>
-- <br>
Steven<br>
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