Python extraneous dependencies

[Steven Penny]

On Sun, 24 Feb 2019 17:42:36, Yaakov Selkowitz wrote:
> On Sat, 2019-02-23 at 16:29 -0800, Steven Penny wrote:
>> I noticed that "python36" requires "binutils".
>
> This is needed for ctypes.util.find_library().  FWIW, on Linux, not
> only binutils is used, but also gcc.
>
>> Further, I noticed this dependency chain:
>> 
>>     python36 > libuuid-devel > pkg-config > libglib2.0_0
>
> Until 3.7, the uuid stdlib module loads libuuid via ctypes, hence the
> dependency.  In 3.7, there is a compiled binding, and so the -devel
> dependency was dropped.  Also, pkgconf will soon be providing and
> replacing pkg-config, which will cause the glib2.0 dependency to be
> dropped.

thanks. i was interested further in comparison so i took this file:

https://python.org/ftp/python/3.6.8/python-3.6.8-embed-amd64.zip

then use tar for fair comparison:

    tar -a -c -f python-3.6.8-embed-amd64.tar.xz python-3.6.8-embed-amd64

result:

    $ wc -c python-3.6.8-embed-amd64.tar.xz
    5630160 python-3.6.8-embed-amd64.tar.xz

compare this with cygwin version:

    $ wc -c python36-3.6.8-1.tar.xz
    5746648 python36-3.6.8-1.tar.xz

and that doesnt include the other packages i previously discussed. so it almost
makes more sense to not even use the cygwin version?


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