d = {'name':'alx','age':18,'pp':11,'cc':12}
sql = '''insert into xx(%s) value(%s)'''
key_list = []
value_list=[]
for k,v in d.items():
key_list.append(k)
value_list.append('%%(%s)s' % k)
sql = sql % (','.join(key_list),','.join(value_list))
cursor.execute(sql,d)