I was asked to update the list with my progress daily until Friday, so I'll
keep this quick.
I've pushed hard against the branch to remove the old assumptions, and as
of a few minutes ago I've managed to get the sympy/core working smooth:
======= tests finished: 329 passed, 6 expected to fail, in 12.57 seconds
=======
- Commit: 5e76a479db9f5ad2c55a
This is in contrast with the state of affairs just after the discussion
late last week:
tests finished: 306 passed, 22 failed, 5 expected to fail,
1 expected to fail but passed, 1 exceptions, in 8.12 seconds
- Commit: 91bcb155b24fd354cfdc
And this is the stats on my netbook for the master branch (just in case
those times looked a little high):
======= tests finished: 390 passed, 7 expected to fail, in 11.58 seconds
=======
Few things worth noting:
- Most of the default assumption handling occurs now in the Expr class. It
dispatches to the global_assumptions if there is a straight up assumption
referring to the current query (<var>.is_foo), then attempts to
_eval_is_foo, and in some cases check's related is_foo2's.
- Instead of commenting out / deleting the tests that used assumptions, I
rewrote them to use global assumptions. There may be more in the core that
I've missed, but once they're stripped from the constructor those should
surface. This flies against the recommended path, but I think they test
important things and we can always place them some place else (it's easy to
locate all instances in the testing files).
- I found that from time to time an expression would be cached, and then the
symbol would be used later with different assumptions. This proved to be
/extremely/ problematic and hard to debug. Would it be worth modifying the
cache so that all expressions related to a symbol (eg. x) are dumped when
the Symbol('x') is called again?
Cheers,
Christian
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