#8244: Annoying warnings when building the HTML reference manual
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Reporter: mpatel | Owner: mvngu
Type: defect | Status: new
Priority: major | Milestone: sage-4.3.3
Component: documentation | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Comment(by mpatel):
I'm not very familiar with
[http://en.wikipedia.org/wiki/Abstract_syntax_tree ASTs] (or
[http://docs.python.org/library/ast.html ast]), but with
{{{
#!python
import ast
import inspect
import sage.misc.sageinspect as sms
class SageVisitor(ast.NodeVisitor):
def visit_Name(self, node):
what = node.id
if what == 'None':
return None
elif what == 'True':
return True
elif what == 'False':
return False
return node.id
def visit_Num(self, node):
return node.n
def visit_Str(self, node):
return node.s
def visit_List(self, node):
t = []
for n in node.elts:
t.append(self.visit(n))
return t
def visit_Tuple(self, node):
t = []
for n in node.elts:
t.append(self.visit(n))
return tuple(t)
def visit_Dict(self, node):
d = {}
for k, v in zip(node.keys, node.values):
d[self.visit(k)] = self.visit(v)
return d
def getargspec_via_ast(source):
if not isinstance(source, basestring):
source = sms.sage_getsource(source)
ast_args = ast.parse(source.lstrip()).body[0].args
args = []
defaults = []
for a in ast_args.args:
args.append(SageVisitor().visit(a))
for d in ast_args.defaults:
defaults.append(SageVisitor().visit(d))
return inspect.ArgSpec(args, ast_args.vararg, ast_args.kwarg,
tuple(defaults) if defaults else None)
}}}
I get
{{{
#!python
sage: inspect.getargspec(factor) == getargspec_via_ast(factor)
True
sage: getargspec_via_ast(sage.plot.plot3d.base.Graphics3d.export_jmol)
ArgSpec(args=['self', 'filename', 'force_reload', 'zoom', 'spin',
'background', 'stereo', 'mesh', 'dots', 'perspective_depth',
'orientation'], varargs=None, keywords='ignored_kwds',
defaults=('jmol_shape.jmol', False, 100, False, (1, 1, 1), False, False,
False, True, (-764, -346, -545, 76.390000000000001)))
}}}
Maybe we can use this as a last resort? I think we'd first need to remove
Cython-specific constructs.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8244#comment:5>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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