[Bf-committers] Bundle Python, modules to exclude (if any)

Joshua Leung aligorith at gmail.com
Wed Dec 10 07:31:45 CET 2008


I support leaving out Py-Modules which are not relevant most scripts.

* TK - IMO, this can be left out, as it's mostly an additional UI library,
which conflicts with some of the things our system does already
* distutil, test - agreed
* curses - I doubt whether this has any uses, but it's probably too
insignificant to worry about

I should also mention here, that we should add an option to the installers
whether to install the local copy of python if we go ahead with this.


On Mon, Dec 8, 2008 at 4:10 PM, Campbell Barton <ideasman42 at gmail.com>wrote:

> Last meeting we discussed weather to include all python modules
> (including modules bundled scripts don't use),
> this seemed a popular option which surprised me, since I recall extra
> size being a strong argument for some decisions in the past.
> Id prefer to include ALMOST all modules, just removing a few larger
> ones that are highly unlikely to be used by blender/python scripts.
> (to my knowledge have not been used yet for this purpose).
> Then again, if we're ok with adding ~8meg to Blenders download size,
> Im not going to argue too hard against it. :-)
> Keep in mind...
> * This discussion is only about the blender distributed on
> blender.org, linux distro's can still have a dynamic linked python.
> * Building your own blender can work as it does now. (probably have
> scons options for setting up a full python in the install DIR)
> * Even if we remove these modules from a blender bundle, a full python
> install would allow python devs to load them.
> * Adding modules back is also easy enough if we discover they are
> useful for blender.
> == Summery ==
> Tested with python 2.6.1 on windows, Sizes exclude python.exe, headers
> and libpython26.a (which only added up to a few 100k compressed
> anyway).
> Full Python
>  - 25.5mb, 8.3mb zipped
> Without TK
>  - 16.1mb, 5mb zipped
> Without TK, "distutils" and "test" modules
> - 10.1mb, 3.5mb zipped
> breakdown of module sizes uncompressed/compressed.
> TK - ~9.3mb uncompressed, 3.4 zipped. (installer reports TK to use
> 13mb, not sure whats up with that)
> "test" modules, 4.2mb, 0.7mb zipped.
> "distutils"  1mb . 0.4mb zipped.
> == Rationale ==
> "TK", user interface modules, Id recommend excluding this because...
> 1) Python without TK is an install option for win32 (note, its the
> ONLY module that can be unselected while installing), so we can
> exclude it while maintaining a complete python env.
> 2) Blender has its own UI,
> 3) Tk isnt popular compared py WX, QT, GTK,
> 4) its fairly large
> 5) this hasn't been used with blender for any non-experimental scripts
> AFAIK (feel free to link me to some blender tool that uses it)
> (tk modules)
> Tix - Tk Extension Widgets for Tkinter
> Tkinter - Interface to Tcl/Tk for graphical user interfaces
> turtle - Turtle graphics for Tk
> ScrolledText - Text widget with a vertical scroll bar.
> url: http://docs.python.org/modindex.html
> "test" module, This isnt likely to be used by production tools,
> developers who want to use it can have python installed.
> summery: Regression tests package containing the testing suite for Python.
> url: http://docs.python.org/library/test.html#module-test
> "distutils" module, is normally used from the command line to install
> python modules "python setup.py build; python setup.py install", a bit
> like autotools "/configure; make; make install", again, blender tools
> wont use this.
> summery: Support for building and installing Python modules into an
> existing Python installation.
> url: http://docs.python.org/library/distutils.html#module-distutils
> -----
> --
> - Campbell
> _______________________________________________
> Bf-committers mailing list
> Bf-committers at blender.org
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