Poblate对象

Question

我有一个CSV文件paises.csv，看起来像这样：

Chile;17000000;0.72;FALSE;0 
Hanslandia;2000000;0.2;FALSE;91 
Bastiland;4000000;0;TRUE;0 

的第一列是country名字，下面是它的一些特性，比如它的人口。所以，我创建了一个country类，并试图从csv文件其功能创建国家和填充它：

# -*- coding: utf-8 -*- 
##Importing libraries 
import csv 
##Defining classes 
class country: 
    def __init__(self,inhabitants,tolerance,underground,infected_perc): 
     self.inhabitants = inhabitants 
     self.tolerance = tolerance 
     self.underground = underground 
     self.infected_perc = infected_perc 

with open('paises.csv', 'r') as f: 
    reader = csv.reader(f, delimiter = ";") 
    for row in reader: 
     row[0]=country(row[1],row[2],row[3],row[4]) 

代码运行。但是，它甚至不创造这些国家。当我尝试看row，我所得到的是这样的：

AttributeError("Can't get attribute 'country' on ",) 

Answer 1

我认为你需要一个容器，您可以存储你所创建的国家。我也会考虑资本化类的名称：

import csv 

class Country: 
    def __init__(self,inhabitants,tolerance,underground,infected_perc): 
     self.inhabitants = inhabitants 
     self.tolerance = tolerance 
     self.underground = underground 
     self.infected_perc = infected_perc 

countries = {} 
with open('paises.csv', 'r') as f: 
    reader = csv.reader(f, delimiter = ";") 
    for row in reader: 
     countries[row[0]] = Country(row[1], row[2], row[3], row[4]) 

你想要国家店在字典中countries，你可以用它的名称为重点访问它们。例如，要访问智利，您可以使用countries['Chile']。

更新：

在你想用一个列表，而不是一本字典，你应该将字段添加到您的类来存储国名情况：

import csv 

class Country: 
    def __init__(self,name, inhabitants,tolerance,underground,infected_perc): 
     self.name = name 
     self.inhabitants = inhabitants 
     self.tolerance = tolerance 
     self.underground = underground 
     self.infected_perc = infected_perc 

countries = [] 
with open('paises.csv', 'r') as f: 
    reader = csv.reader(f, delimiter = ";") 
    for row in reader: 
     countries.append(Country(row[0], row[1], row[2], row[3], row[4])) 

在使用的情况下，列表作为容器，您可以用countries.append(Country(*row))替代countries.append(Country(row[0], row[1], row[2], row[3], row[4]))