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深入 Python :Dive Into Python 中文版Python 从新手到专家 [Dip_5.4b_CPyUG_Release] |
apihelper.py 程序和它的输出现在应该非常清晰了。
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__
apihelper.py 的输出:
>>> from apihelper import info >>> li = [] >>> info(li) append L.append(object) -- append object to end count L.count(value) -> integer -- return number of occurrences of value extend L.extend(list) -- extend list by appending list elements index L.index(value) -> integer -- return index of first occurrence of value insert L.insert(index, object) -- insert object before index pop L.pop([index]) -> item -- remove and return item at index (default last) remove L.remove(value) -- remove first occurrence of value reverse L.reverse() -- reverse *IN PLACE* sort L.sort([cmpfunc]) -- sort *IN PLACE*; if given, cmpfunc(x, y) -> -1, 0, 1
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