Passing nested list as an argument to a method-CodePudding

Below code is working fine

class p:
    def __init__(self):
        self.log={
            'name':'',
            'id':'',
            'age':'',
            'grade':''
        }
           
    def parse(self,line):
        self.log['id']=line[0]
        self.log['name']=line[1]
        self.log['age']=line[2]
        self.log['grade']=line[3].replace('\n',"")
        
        return self.log


obj=p()
with open(r"C:\Users\sksar\Desktop\Azure DE\Datasets\dark.csv",'r') as fp:
    line=fp.read()
data=[i.split(',') for i in line.split('\n')]
for i in data:
    a=obj.parse(i)
    print(a)

Input:

1,jonas,23,A
2,martha,23,B

Output:

{'name': 'jonas', 'id': '1', 'age': '23', 'grade': 'A'}
{'name': 'martha', 'id': '2', 'age': '23', 'grade': 'B'}

Question is: When i make a method call(a=obj.parse(i)) out of the loop, inputs are overwritten and give below as o/p {'name': 'martha', 'id': '2', 'age': '23', 'grade': 'B'} simply missing the previous records.

How to make a method(parse) call without having to iterate through nested loop(Input data) and feed data to the method call? simply how to get the desired output without for loop...

CodePudding user response：

I dont get why you are trying to avoid an explicit loop. I mean, even if you don't see it in your code, if there is something being iterated, there will be a loop somewhere, and if so, "explicit is better than implicit".

In any case, check this:

with open(r"C:\Users\sksar\Desktop\Azure DE\Datasets\dark.csv",'r') as fp:
  [print(obj.parse(x.split(','))) for x in fp.readlines()]