每天CookBook之Python-098

• 将字典存到xml中

from xml.etree.ElementTree import Element, tostring


def dict_to_xml(tag, d):
    elem = Element(tag)
    for key, val in d.items():
        child = Element(key)
        child.text = str(val)
        elem.append(child)
    return elem


s = {'name': 'GOOG', 'shares': 100, 'price': 490.1}
e = dict_to_xml('stock', s)

print(e)
print(tostring(e))

e.set('_id', '1234')

print(tostring(e))


def dict_to_xml_str(tag, d):

    parts = ['<{}>'.format(tag)]
    for key, val in d.items():
        parts.append('<{0}>{1}</{0}>'.format(key,val))
    parts.append('</{}>'.format(tag))
    return ''.join(parts)


print(dict_to_xml_str('stock', s))

from xml.sax.saxutils import escape, unescape

print(escape('<spam>'))

<Element 'stock' at 0x006F38A0>
b'<stock><price>490.1</price><name>GOOG</name><shares>100</shares></stock>'
b'<stock _id="1234"><price>490.1</price><name>GOOG</name><shares>100</shares></stock>'
<stock><price>490.1</price><name>GOOG</name><shares>100</shares></stock>
&lt;spam&gt;