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80 lines
1.8 KiB
Python
80 lines
1.8 KiB
Python
# New dir() function and other attribute-related goodies
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# This should become a built-in function
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#
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def getattr(x, name):
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return eval('x.'+name)
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# This should be the new dir(), except that it should still list
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# the current local name space by default
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#
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def listattrs(x):
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try:
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dictkeys = x.__dict__.keys()
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except (AttributeError, TypeError):
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dictkeys = []
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#
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try:
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methods = x.__methods__
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except (AttributeError, TypeError):
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methods = []
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#
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try:
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members = x.__members__
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except (AttributeError, TypeError):
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members = []
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#
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try:
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the_class = x.__class__
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except (AttributeError, TypeError):
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the_class = None
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#
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try:
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bases = x.__bases__
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except (AttributeError, TypeError):
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bases = ()
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#
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total = dictkeys + methods + members
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if the_class:
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# It's a class instace; add the class's attributes
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# that are functions (methods)...
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class_attrs = listattrs(the_class)
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class_methods = []
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for name in class_attrs:
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if is_function(getattr(the_class, name)):
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class_methods.append(name)
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total = total + class_methods
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elif bases:
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# It's a derived class; add the base class attributes
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for base in bases:
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base_attrs = listattrs(base)
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total = total + base_attrs
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total.sort()
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return total
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i = 0
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while i+1 < len(total):
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if total[i] == total[i+1]:
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del total[i+1]
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else:
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i = i+1
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return total
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# Helper to recognize functions
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#
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def is_function(x):
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return type(x) == type(is_function)
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# Approximation of builtin dir(); this lists the user's
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# variables by default, not the current local name space.
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# Use a class method to make a function that can be called
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# with or without arguments.
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#
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class _dirclass:
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def dir(args):
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if type(args) == type(()):
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return listattrs(args[1])
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else:
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import __main__
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return listattrs(__main__)
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dir = _dirclass().dir
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