I've opened a ticket (#4719) for doctest crashing on failures.
[mabshoff]
> OK. I am seeing the numerical noise issue at #4276, but I would also
> be curious about the cachefunc.py failure.
The failure I'm getting is in the doctest for
CachedFunction._sage_src_. Running with verbose mode on one gets the
following:
Failed example:
'bober' in sage_getsource(g)###line 59:_sage_ >>> 'bober' in
sage_getsource(g)
Exception raised:
Traceback (most recent call last):
...
IOError: could not get source code
On closer inspection this has nothing to do with cached functions. If
I do
sage: number_of_partitions??
or indeed
sage: matrix??
then I get an error message and a docstring with no source code,
marked "[source file open failed]". This also happens with more or
less any function that is defined in a cython file. Interestingly it
works fine on the sage.math binary, which suggests that it is an
artefact of the upgrade process. So doing a sage -ba will probably fix
it. I'll leave that running, go and have a beer and try again in the
morning...
David
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