A version of dir() which lists only public attributes.

pubdir.py

"""
This goes in the PYTHONSTARTUP file.

Example:

>>> pubdir([])
['append', 'count', 'extend', 'index', 'insert', 'pop', 'remove', 'reverse', 'sort']
"""

__pubdir_no_arg = []                                                        

def pubdir(obj=__pubdir_no_arg):
    if obj is __pubdir_no_arg:
        attributes = dir()
    else:
        attributes = dir(obj)

    return [a for a in attributes if not a.startswith('_')]