field-names | 易学教程

compare values with fieldnames before writing it in csv file using python

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问题 I'm using this code to compare value with their affiliated fieldnames before i store it in the csv-file to check the right column, because everytime when i reboot my machine the order of sensors in the dictionary will be changed autamatically. this why i have to control the the position of value in dict before i store it in csv file, otherwise i will get a mess csv file like the example bellow which provide the value temperatur is 1000 [°C] the luminisity 10 [lux] import csv from datetime

Equivalent of Fieldnames function for cells

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问题 As the title says, just wondering if there is a function that works as fieldnames (http://www.mathworks.co.uk/help/matlab/ref/fieldnames.html) does, but for cells. So if I have something like: a = imread('redsquare.bmp'); b = imread('bluesquare.bmp'); c = imread('yellowsquare.bmp'); d = imread('greysquare.bmp'); e = {a, b, c, d}; I'm trying to retrieve either: a, b, c, d OR the image name without the extension. I have tried fn = fileparts(e) and fntemp = cell2struct(e,2) , but I can't get it

Spring 3 form validation shows error messages but field name not displayed

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问题 I have a 2 item form, that requires that both fields be entered. I'm using annotated validations, and am getting error messages, but they do not print the field name, just "may not be blank" instead of "one may not be blank" where one is the field name. Any ideas? This is a pretty simple example: @Controller @SessionAttributes public class HomeController { private static final Logger logger = LoggerFactory .getLogger(HomeController.class); @RequestMapping(value = "/", method = RequestMethod

Equivalent of Fieldnames function for cells

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As the title says, just wondering if there is a function that works as fieldnames (http://www.mathworks.co.uk/help/matlab/ref/fieldnames.html) does, but for cells. So if I have something like: a = imread('redsquare.bmp'); b = imread('bluesquare.bmp'); c = imread('yellowsquare.bmp'); d = imread('greysquare.bmp'); e = {a, b, c, d}; I'm trying to retrieve either: a, b, c, d OR the image name without the extension. I have tried fn = fileparts(e) and fntemp = cell2struct(e,2) , but I can't get it working. Hope this makes sense Thanks The cell array does not include any meta-information, like field

Pythonic way to sorting list of namedtuples by field name

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I want to sort a list of named tuples without having to remember the index of the fieldname. My solution seems rather awkward and was hoping someone would have a more elegant solution. from operator import itemgetter from collections import namedtuple Person = namedtuple('Person', 'name age score') seq = [ Person(name='nick', age=23, score=100), Person(name='bob', age=25, score=200), ] # sort list by name print(sorted(seq, key=itemgetter(Person._fields.index('name')))) # sort list by age print(sorted(seq, key=itemgetter(Person._fields.index('age')))) Thanks, Nick from operator import