Status: Accepted
Owner: ----
Labels: Type-Defect Priority-Medium
New issue 2911 by [email protected]: requesting help for a symbol raises an
error
http://code.google.com/p/sympy/issues/detail?id=2911
asking for help on an expression/function gives some help:
help(2+x)
Help on Add in module sympy.core.add object:
...
But doing the same on a symbol raises an error:
help(x)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\python26\lib\site.py", line 429, in __call__
return pydoc.help(*args, **kwds)
File "C:\python26\lib\pydoc.py", line 1723, in __call__
self.help(request)
File "C:\python26\lib\pydoc.py", line 1770, in help
else: doc(request, 'Help on %s:')
File "C:\python26\lib\pydoc.py", line 1508, in doc
pager(render_doc(thing, title, forceload))
File "C:\python26\lib\pydoc.py", line 1503, in render_doc
return title % desc + '\n\n' + text.document(object, name)
File "C:\python26\lib\pydoc.py", line 327, in document
if inspect.isclass(object): return self.docclass(*args)
File "C:\python26\lib\pydoc.py", line 1212, in docclass
lambda t: t[1] == 'method')
File "C:\python26\lib\pydoc.py", line 1162, in spill
name, mod, object))
File "C:\python26\lib\pydoc.py", line 328, in document
if inspect.isroutine(object): return self.docroutine(*args)
File "C:\python26\lib\pydoc.py", line 1273, in docroutine
doc = getdoc(object) or ''
File "C:\python26\lib\pydoc.py", line 83, in getdoc
result = inspect.getdoc(object) or inspect.getcomments(object)
File "C:\python26\lib\inspect.py", line 579, in getcomments
lines, lnum = findsource(object)
File "C:\python26\lib\inspect.py", line 568, in findsource
if pat.match(lines[lnum]): break
IndexError: list index out of range
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