>>> def f(a, self): pass
... 
>>> sig = inspect.signature(f)
>>> sig.bind(1, 2)
<inspect.BoundArguments object at 0x7f607ead1e28>
>>> sig.bind(a=1, self=2)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: bind() got multiple values for argument 'self'

I'll take a look later today.

Here is a patch.

Thanks Antoine, the patch looks good to me.

The only thing I would have done differently myself is to name "self" as "__bind_self__" (with two underscores at the end).

Could you please apply the patch?

New changeset 49fd1c8aeca5 by Antoine Pitrou in branch '3.3':
Issue #17071: Signature.bind() now works when one of the keyword arguments is named ``self``.
http://hg.python.org/cpython/rev/49fd1c8aeca5

New changeset 4ff1dc8c0a3c by Antoine Pitrou in branch 'default':
Issue #17071: Signature.bind() now works when one of the keyword arguments is named self.
http://hg.python.org/cpython/rev/4ff1dc8c0a3c

Committed to 3.3 and default!

self doesn't need to have a name, you can use:

def bind(*args, **kw):
  self = args[0]
  args = args[1:]

To accept any name ;-)

Indeed, there were several solutions to this.