Thomas Guettler wrote:
Hi,
how can you list the attributes of an object if you catch an
AttributeError?
I couldn't find a reference in the exception object, which
points to the object.
I want to call dir() on the object to list the user the known
attributes.
Is there a way to find the object by inspecting the stacktrace?
By looking at the code at the line the stacktrace lists? And at least for
me, there is a type-information as well:
Python 2.5.1 (r251:54863, May 2 2007, 16:56:35)
[GCC 4.1.2 (Ubuntu 4.1.2-0ubuntu4)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
clWelcome to rlcompleter2 0.96
for nice experiences hit <tabmultiple times
>>class Foo(object): pass
....
>>f = Foo()
f.foo
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: 'Foo' object has no attribute 'foo'
>>>
You can't possibly know which attributes the object has, though. Because it
might be an attribute dynamically added.
So the best thing is to put a print-statement before the exception-throwing
line or put a
import pdb; pdb.set_trace()
there, and fiddle around with the object.
Diez
