English 中文(简体)
pthon - int Object is not subscriptable
原标题:python - int object is not subscriptable

我正在尝试一个刀切的分类。 在一阵列中试图使数据正常化时,就会发现上述错误。

    norm_val = 100.00                                                              
    for i in range(0, len(ListData)):                                               
            ListData[i][0] = int(ListData[i][0]/max_val)

我把错误带上最后一行,即暗中物体是不可描述的。

Thanks

最佳回答

<代码>ListData 看来是一份分类账清单(或至少一份清单也载有分类账)。

因此,ListData[i] >将名单重新编号为。 既然不存在“愤怒的第一个要素”,那么你在试图查阅时就会出现这一错误。

Aside from that, if you re aiming to divide all items of a list by max_val, you can simply use a list comprehension:

ListData = [int(item/max_val) for item in ListData]
问题回答

<代码>ListData不仅载有清单,还载有非清单的其他物体。

The following works:

ListData = [ [99, "Some thing"],
             [88, "Some other thing"] ]

下面没有:

ListData = [ 99,
             88 ]

不清楚你想要做什么。





相关问题
Can Django models use MySQL functions?

Is there a way to force Django models to pass a field to a MySQL function every time the model data is read or loaded? To clarify what I mean in SQL, I want the Django model to produce something like ...

An enterprise scheduler for python (like quartz)

I am looking for an enterprise tasks scheduler for python, like quartz is for Java. Requirements: Persistent: if the process restarts or the machine restarts, then all the jobs must stay there and ...

How to remove unique, then duplicate dictionaries in a list?

Given the following list that contains some duplicate and some unique dictionaries, what is the best method to remove unique dictionaries first, then reduce the duplicate dictionaries to single ...

What is suggested seed value to use with random.seed()?

Simple enough question: I m using python random module to generate random integers. I want to know what is the suggested value to use with the random.seed() function? Currently I am letting this ...

How can I make the PyDev editor selectively ignore errors?

I m using PyDev under Eclipse to write some Jython code. I ve got numerous instances where I need to do something like this: import com.work.project.component.client.Interface.ISubInterface as ...

How do I profile `paster serve` s startup time?

Python s paster serve app.ini is taking longer than I would like to be ready for the first request. I know how to profile requests with middleware, but how do I profile the initialization time? I ...

Pragmatically adding give-aways/freebies to an online store

Our business currently has an online store and recently we ve been offering free specials to our customers. Right now, we simply display the special and give the buyer a notice stating we will add the ...

Converting Dictionary to List? [duplicate]

I m trying to convert a Python dictionary into a Python list, in order to perform some calculations. #My dictionary dict = {} dict[ Capital ]="London" dict[ Food ]="Fish&Chips" dict[ 2012 ]="...

热门标签