choice

I am trying to create a django formwizard where the first form has a choicefield generated at runtime. I can generate the form with the correct choices but when I click submit the formwizard does not proceed to the next step. It submits the form but returns to form1. Here are my forms and view ##Forms class EventForm1(forms.Form): def __init__(self, *args, **kwargs): ##Get choices at runtime choices = kwargs.pop('loan_choices', []) super(EventForm1, self).__init__(*args, **kwargs) self.fields['loan'] = forms.ChoiceField(choices=choices, required=False, widget=forms.Select(attrs={'class':

I'm using a kml package of R to cluster my data and I need to get in the end a csv file with a column including the number of clusters according to each id. The data has many missing values, so I can't use kmeans function without deleting all observations, but kml works nicely with that. My problem is that I use choice() to export the results and all I get is a graphical window, but no output files. Here is my code: setwd("/Volumes/NATASHKA/api/R files") statadata <-read.dta("Data_wide_withdemogr_auris_for_kml_negative.dta") mydata <- data.frame(statadata) cldDQ <- cld(mydata) kml(cldDQ,c(2:6)

栈是一种"后进先出"的数据结构（LIFO），是一种操作受限的线性结构，数据只能从栈顶进入和栈顶出去。示意图如下： 代码实现方式如下： 1 #!/usr/bin/env python 2 3 stack = [] 4 5 def pushstack(): 6 stack.append(raw_input('Enter new string: ')) 7 8 def popstack(): 9 if len(stack) == 0: 10 print 'Cannot pop from empty stack!' 11 else: 12 print 'Removed [', stack.pop(), ']' 13 14 def viewstack(): 15 print stack 16 17 CMDs = {'u':pushstack, 'o':popstack, 'v':viewstack} 18 19 def showmenu(): 20 pr = """ 21 p(U)sh 22 P(O)p 23 (V)iew 24 (Q)uit 25 Enter choice:""" 26 27 while True: 28 try: 29 choice = raw_input(pr).strip()[0].lower() 30 except(EOFError,

In my project, where I'm the lead developer, we earlier had a network configuration that was stored a single XML file. The configuration contains info about a network layout - its constituent hosts, various details about each host like OS, platform, users configured in each them, several attributes for each user and so on. In the forthcoming version of the product, we want to move the data into a database of some sort since the configuration will be expanded to include more elements and details and maintaining them in XML files will start becoming cumbersome. The first choice was an RDBMS.

I have a properties file with messages and I want to handle some special cases of plural. Now I use: xxx.yyy.plural=test{0,choice,2#y} but it formats 12 as 'testy' also. How can I specify 2 as exact match? I found an answer. It seems that choice statement in properties file works properly only if more than one choice is specified. So you have to specify at least one "else branch" If i rewrite my example: xxx.yyy.plural={0,choice,2#testy|2<test} 来源： https://stackoverflow.com/questions/12138279/choice-pattern-in-properties-file