[cairo] How to make a pycairo release happen ?

Lawrence D'Oliveiro ldo at geek-central.gen.nz
Sat Sep 17 22:24:05 UTC 2016


On Sat, 17 Sep 2016 16:11:44 +0000 (UTC), Stuart Axon wrote:

> When it comes to the legacy code, e.g. Shoebot it would
> be great to have pip installable version of pycairo that supports
> modern Cairo.

The problem is the amount of work it would take. I looked at doing
that, then realized that starting from scratch in pure Python, I could
fill in all the missing graphics features with less effort than it
would take to write the necessary C code for PyCairo.

Not to mention the extra stuff you get for free, just by writing in
Python. Like being able to pass arguments by keywords--an ongoing
irritation I kept hitting every time I wrote something using PyCairo.

Also, PyCairo has its own special API to allow other C extension
modules to hook into it. All this becomes unnecessary in a pure-Python
module. Python has no concept of “private” or “public” object members;
as Guido van Rossum has said “we’re all consenting adults here”. The
leakiness of Python abstractions is not a bug, it’s a feature; you can
peek into the internals of a class if you want (e.g. to add features
that the original creator of the class did not envisage), but it’s up
to you to wear the consequences of that.


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