我有一份每日温度清单,如下所示:
weekly_temperature = [[ Saturday , 100], [ Wednesday , 95], [ Friday , 80],
[ Monday , 95], [ Sunday , 90], [ Tuesday , 100], [ Thursday , 85]]
我如何根据从星期一到星期天这一周日来排列这一名单?
我愿谈谈以下几个方面:
weekly_temperature = [[ Monday , 95], [ Tuesday , 100], [ Wednesday , 95],
[ Thursday , 85], [ Friday , 80], [ Saturday , 100], [ Sunday , 90]]
你们需要了解这些日子与秩序的关系。 你可以用字典来做到这一点。 然后在<条码>关键功能内的字典上看:
week_order = {
Monday : 0,
Tuesday : 1,
Wednesday : 2,
Thursday : 3,
Friday : 4,
Saturday : 5,
Sunday : 6
}
weekly_temperature = [[ Saturday , 100], [ Wednesday , 95], [ Friday , 80],[ Monday , 95], [ Sunday , 90], [ Tuesday , 100], [ Thursday , 85]]
sorted(weekly_temperature, key=lambda pair: week_order[pair[0]])
这将使你:
[[ Monday , 95],
[ Tuesday , 100],
[ Wednesday , 95],
[ Thursday , 85],
[ Friday , 80],
[ Saturday , 100],
[ Sunday , 90]]
当然,如果你想要在现场进行分类,则与<代码>sort(”相同。
weekly_temperature = [[ Saturday , 100], [ Wednesday , 95], [ Friday , 80], [ Monday , 95], [ Sunday , 90], [ Tuesday , 100], [ Thursday , 85]]
d = {
"Monday": 1,
"Tuesday": 2,
"Wednesday": 3,
"Thursday": 4,
"Friday": 5,
"Saturday": 6,
"Sunday": 7
}
week = sorted(weekly_temperature, key=lambda x: d[x[0]])
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ]="...