amazon.py 文件源码

def unmarshal(element):
    rc = Bag()
    if isinstance(element, minidom.Element) and (element.tagName == 'Details'):
        rc.URL = element.attributes["url"].value
    childElements = [e for e in element.childNodes if isinstance(e, minidom.Element)]
    if childElements:
        for child in childElements:
            key = child.tagName
            if hasattr(rc, key):
                if type(getattr(rc, key)) <> type([]):
                    setattr(rc, key, [getattr(rc, key)])
                setattr(rc, key, getattr(rc, key) + [unmarshal(child)])
            elif isinstance(child, minidom.Element) and (child.tagName == 'Details' or child.tagName == 'Item'):
                # make the first Details element a key
                setattr(rc,key,[unmarshal(child)])
                #dbg: because otherwise 'hasattr' only tests
                #dbg: on the second occurence: if there's a
                #dbg: single return to a query, it's not a
                #dbg: list. This module should always
                #dbg: return a list of Details objects.
            else:
                setattr(rc, key, unmarshal(child))
    else:
        rc = "".join([e.data for e in element.childNodes if isinstance(e, minidom.Text)])
        if element.tagName == 'SalesRank':
            rc = rc.replace('.', '')
            rc = rc.replace(',', '')
            rc = int(rc)
    return rc