<div dir="ltr">At the beginning of the year, I've landed a large set of patches to support both Python 2 and Python3 in most Python scripts. Looks like I missed some of them :-)<div>At that time, backward portability with Python2 was still relevant, and I suspect it will still be the case for a few distributions that ship Python2 by default. That being said, Even RHEL8 uses Python3 by default, so at some point we may be able to drop the compatibility stuff.</div><div>Until then, I'd argue for maintaining compatibility as it's not a tremendous task.</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Dec 17, 2019 at 10:54 AM James Henderson via llvm-dev <<a href="mailto:llvm-dev@lists.llvm.org">llvm-dev@lists.llvm.org</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"><div dir="ltr">I personally only use Python 3 reluctantly. I've yet to encounter a situation where I actually preferred Python 3. That being said, given the decision to retire Python 2.7 (*grumble* *grumble*), I'll probably be forced sometime in the new year to uninstall it by somebody in charge of security somewhere. I certainly don't see a personal need to have all scripts support Python 2, unless they are used in the build/test pipeline somewhere (i.e. get touched by a fresh check-all).<br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, 17 Dec 2019 at 05:31, Fangrui Song via llvm-dev <<a href="mailto:llvm-dev@lists.llvm.org" target="_blank">llvm-dev@lists.llvm.org</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"><a href="https://reviews.llvm.org/D71565" rel="noreferrer" target="_blank">https://reviews.llvm.org/D71565</a> intends to update llvm/utils/update_cc_test_checks.py to work with Python 2.<br>
<br>
In the original review, I suggested that we don't add Python 2<br>
compatibility for new features because Python 2.7 is retiring and some<br>
Linux distributions are even deprecating/removing Python 2 support. My<br>
feeling is:<br>
<br>
If some utilities do not support Python 2, we should probably not bother<br>
making them Python 2 compatible. Maintaining Python 2/3 compatibility<br>
may not worth the efforts. "utilities" include some command line tools<br>
under llvm/utils, which are not part of instructure like lit. What do<br>
people think?<br>
<br>
BTW, what's the Python 3 support status of build bots? Are there any<br>
running Python 3?<br>
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