On 10/18/2012 10:30 PM, Peng Yu wrote:
Hi,
reference.pdf from python document has the following description. It
is not accessible from help() in the command line. Is there an
alternative so that I can quickly access these class attributes or
method names from the command line?
object.__call__(self [, args... ])
Called when the instance is “called” as a function; if this method is
defined, x(arg1, arg2, ...) is a
shorthand for x.__call__(arg1, arg2, ...).
>>> help(object.__call__)
Help on method-wrapper object:
__call__ = class method-wrapper(object)
| Methods defined here:
|
| __call__(...)
| x.__call__(...) <==> x(...)
|
snip not very helpful stuff
For a user class with a __call__ method with a docstring
>>> class C:
def __call__(self, x):
"return the difference between self and x"
return self-x
>>> help(C.__call__)
Help on function __call__ in module __main__:
__call__(self, x)
return the difference between self and x
Similarly for builtin methods you actually need to know about
>>> help(list.append)
Help on method_descriptor:
append(...)
L.append(object) -> None -- append object to end
--
Terry Jan Reedy
--
http://mail.python.org/mailman/listinfo/python-list
