我试图与在datatstore一列工作,我可以查看和显示的内容,就像这样:
q = test.all()
q.filter("adjclose =", "adjclose")
q = db.GqlQuery("SELECT * FROM test")
results = q.fetch(5)
for p in results:
p1 = p.adjclose
print "The value is --> %f" % (p.adjclose)
不过,我需要与adjclose列计算历史价值,和我我无法克服这些错误
for c in range(len(p1)-1):
TypeError: object of type 'float' has no len()
这是我的代码!
for c in range(len(p1)-1):
p1.append(p1[c+1]-p1[c]/p1[c])
p2 = (p1[c+1]-p1[c]/p1[c])
print "the p1 value<--> %f" % (p2)
print "dfd %f" %(p1)
新的python,任何帮助将不胜感激!
在此先感谢
雷
这里是完整的代码
class CalHandler(webapp.RequestHandler):
def get(self):
que = db.GqlQuery("SELECT * from test")
user_list = que.fetch(limit=100)
doRender(
self,
'memberscreen2.htm',
{'user_list': user_list})
q = test.all()
q.filter("adjclose =", "adjclose")
q = db.GqlQuery("SELECT * FROM test")
results = q.fetch(5)
for p in results:
p1 = p.adjclose
print "The value is --> %f" % (p.adjclose)
for c in range(len(p1)-1):
p1.append(p1[c+1]-p1[c]/p1[c])
print "the p1 value<--> %f" % (p2)
print "dfd %f" %(p1)