On 01/29/17 14:08, John W. O'Brien wrote: > Hello FreeBSD Python, > > One of the most common problems I encounter with python3 > interoperability is when the concurrent option is needed and can be > trivially enabled. There is a growing list of bugs where this, on a > individual port basis, has been fixed ([0], [1]), is in progress ([2], > [3]), or is in my queue and perhaps others' to submit ([4]). On the > other hand, there are lots of ports for which concurrent is a no-op, and > lots more that don't support python3 at all meaning that concurrent has > little to no chance to cause harm. > > What I propose is to enable the concurrent behavior by default and to > provide a feature to disable it when necessary. > > I welcome supportive and dissenting comments as well as cautionary > remarks about the likely pitfalls of pursuing this. > > <snark> > While it would be tempting to call the new feature something > unflattering like "i_hate_python3" or "archaic_upstream" or > "regressive", the most natural name is probably just "noconcurrent". > </snark> > > Regards, > John > > [0] textproc/py-xlrd: Allow concurrent installs > https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=209689 > [1] [PATCH] textproc/py-xlsxwriter: Enable concurrent installs > https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=215331 > [2] textproc/py-pygments: add concurrent to USE_PYTHON > https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=214295 > [3] math/py-bottleneck: bump to 1.20, install concurrently > https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=215263 > [4] devel/py-boto, devel/py-tables, devel/pep8, devel/flake8 >
I think the biggest controversy is that binary names are suffixed, which may not be what upstream projects like and/or document. It may be confusing to users as well. If we can get rid of the suffix for PYTHON_CONCURRENT_INSTALL for whichever version is PYTHON_DEFAULT, it should be a net positive to treat it the same way we did USE_GCC in the past (enable PYTHON_NO_CONCURRENT or something and remove it on per-port basis once fixed). - Nikolai Lifanov
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