Calling every method of an object from __init__

[George Sakkis]

Rob Cowie wrote:

> Hi all,
>
> Is there a simple way to call every method of an object from its
> __init__()?
>
> For example, given the following class, what would I replace the
> comment line in __init__() with to result in both methods being called?
> I understand that I could just call each method by name but I'm looking
> for a mechanism to avoid this.
>
> class Foo(object):
>     def __init__(self):
>         #call all methods here
>     def test(self):
>         print 'The test method'
>     def hello(self):
>         print 'Hello user'
>
> Thanks,
>
> Rob C


First off, calling *every* method of an object is most likely a bad
idea. A class has special methods defined automatically and you
probably don't intend calling those. The way to go is have a naming
convention for the methods you want to call, e.g. methods starting with
"dump_". In this case you could use the inspect module to pick the
object's methods and filter out the irrelevant methods:

import inspect

class Foo(object):
    def __init__(self):
        for name,method in inspect.getmembers(self,inspect.ismethod):
            if name.startswith('dump_'):
                method()
    def dump_f(self):
        print 'The test method'
    def dump_g(self):
        print 'Hello user'

if __name__ == '__main__':
    Foo()


George