Installing a Python wheel (whl) file using a port - Tensorflow
Enrico Maria Crisostomo
enrico.m.crisostomo at gmail.com
Mon Dec 18 22:09:07 UTC 2017
Thanks Ken.
Actually I checked brew and they haven't got a formula for TensorFlow (at
least at the moment).
On 18 December 2017 at 22:57:42, Cunningham Ken (
ken.cunningham.webuse at gmail.com) wrote:
FYI, I recall homebrew has tensorflow, so you might get some hints looking
at their formula.
Marius was taking this on a few months ago as well, so might have some
thoughts.
Ken
On 2017-12-18, at 1:52 PM, Enrico Maria Crisostomo wrote:
Hi,
I’m trying to create a port for TensorFlow and I have already accumulated
quite a number of doubts in just a couple of hours I've been working on it.
First of all, I realised (late) that TensorFlow (and some of its
dependencies) is built as a wheel package (a .whl file), and as such it
gets uploaded to the Python Package Index:
https://pypi.python.org/pypi/tensorflow/1.4.1. whl files are meant to be
installed with pip, so my current port file does the following:
if {${name} ne ${subport}} {
build {
}
destroot.cmd pip-${python.branch}
destroot.pre_args
destroot.args \
install \
--no-cache-dir \
--no-dependencies \
--target ${destroot}${python.pkgd} \
${worksrcpath}/${distname}${extract.suffix}
destroot.post_args
livecheck.type none
}
You can see the PR here:
https://github.com/macports/macports-ports/pull/1131
The port apparently work, but I'd like to submit this port for review for
the following reasons:
* I'm not sure we should install a whl file this way, invoking `pip`.
* I had to redefine `master_sites` and `checksums` for each version of
Phyton.
* I had to redefine the `extract` properties to skip extraction and just
copy the downloaded file into `${worksrcpath}`:
extract.suffix .whl
extract.cmd cp
extract.pre_args
extract.post_args ${worksrcpath}
extract.mkdir yes
* Is there a better idiom to refer to the currently-installed `pip`?
destroot.cmd pip-${python.branch}
* Is there a better idiom to refer to the Python site packages directory
in the staging area?
${destroot}${python.pkgd}
Finally, I'm wondering whether this is a good idea at all. I've grep-ed
the ports and I saw no other whl file installed this way.
If you can have a look at the PR I will appreciate any feedback and insight.
Cheers,
--
Enrico
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