#11115: Rewrite cached_method in Cython
-----------------------------------------------------+----------------------
Reporter: SimonKing | Owner: jason
Type: enhancement | Status:
needs_info
Priority: major | Milestone:
sage-4.7.2
Component: misc | Keywords:
category cython cache
Work_issues: | Upstream: N/A
Reviewer: Nicolas M. Thiéry, Andrey Novoseltsev | Author: Simon
King
Merged: | Dependencies: #9976
#11298 #11342 #9138
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Comment(by SimonKing):
Replying to [comment:100 vbraun]:
> sage: test_meth.__doc__
> 'File:
_home_vbraun__sage_temp_volker_desktop_stp_dias_ie_5615_tmp_0_spyx_0.pyx
(starting at line 6)\nsome doc for a wrapped cython method'
That is extremely strange. If you look at the `_sage_doc_` method in
`sage.misc.cachefunc` then you'll find:
{{{
#!python
f = self.f
if hasattr(f, "func_doc"):
try:
sourcelines = sage_getsourcelines(f)
except IOError:
sourcelines = None
if sourcelines is not None:
import os
SAGE_ROOT = os.environ['SAGE_ROOT']
filename = sage_getfile(f)
# The following is a heuristics to get
# the file name of the cached function
# or method
if filename.startswith(SAGE_ROOT+'/devel/sage/'):
filename = filename[len(SAGE_ROOT+'/devel/sage/'):]
elif 'site-packages/' in filename:
filename = filename.split('site-packages/',1)[1]
file_info = "File: %s (starting at line
%d)"%(filename,sourcelines[1])
doc = file_info+(f.func_doc or '')
else:
doc = f.func_doc
else:
doc = f.__doc__
return doc
}}}
Here, `self` is `O.wrapped_method`, and thus `f` is `test_meth`. Since a
Cython function has no attribute `func_doc`, the method `_sage_doc_`
simply returns `f.__doc__` in our case, which ''does'' contain the file
information.
Or is it the case that `test_meth` has a `func_doc` attribute on your
machine?
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11115#comment:101>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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