python换行语法错误

a ={
    ('住宅',
     'https://auction.jd.com/getJudicatureList.html?callback=jQuery4392669&page=1&limit=40&childrenCateId=12728&paimaiStatus=2&_=1524136833906'),
 ('商业',
    'https://auction.jd.com/getJudicatureList.html?callback=jQuery6982580&page=1&limit=40&childrenCateId=13809&paimaiStatus=2&_=1524187441176'),
 ('工业',
     'https://auction.jd.com/getJudicatureList.html?callback=jQuery3769558&page=1&limit=40&paimaiStatus=2&childrenCateId=13817&_=1524187543068'),
 ('其他用房',
     'https://auction.jd.com/getJudicatureList.html?callback=jQuery4296846&page=1&limit=40&paimaiStatus=2&childrenCateId=13810&_=1524187650295'),
('土地',
     'https://auction.jd.com/getJudicatureList.html?callback=jQuery9395886&page=1&limit=40&paimaiStatus=2&childrenCateId=12730&_=1524187793066')}

切忌不能写成如下：

a =
{('住宅',
     'https://auction.jd.com/getJudicatureList.html?callback=jQuery4392669&page=1&limit=40&childrenCateId=12728&paimaiStatus=2&_=1524136833906'),
 ('商业',
    'https://auction.jd.com/getJudicatureList.html?callback=jQuery6982580&page=1&limit=40&childrenCateId=13809&paimaiStatus=2&_=1524187441176'),
 ('工业',
     'https://auction.jd.com/getJudicatureList.html?callback=jQuery3769558&page=1&limit=40&paimaiStatus=2&childrenCateId=13817&_=1524187543068'),
 ('其他用房',
     'https://auction.jd.com/getJudicatureList.html?callback=jQuery4296846&page=1&limit=40&paimaiStatus=2&childrenCateId=13810&_=1524187650295'),
('土地',
     'https://auction.jd.com/getJudicatureList.html?callback=jQuery9395886&page=1&limit=40&paimaiStatus=2&childrenCateId=12730&_=1524187793066')}