Python物件說明的程式

From Dive Into Python:

def info(object, spacing=10, collapse=1):
"""Print methods and doc strings.

Takes module, class, list, dictionary, or string."""
methodList = [method for method in dir(object) if callable(getattr(object, method))]
processFunc = collapse and (lambda s: " ".join(s.split())) or (lambda s: s)
print "\n".join(["%s %s" %
(method.ljust(spacing),
processFunc(str(getattr(object, method).__doc__)))
for method in methodList])

if __name__ == "__main__":
print info.__doc__

與help function有相同功能，為help實作的範例。