CODEWITHSUNDEEP
python
Gavin
Gavin

Reputation: 113

How to turn a text file, into a delimited list of lists

I am attempting to take information from a text file and turn it into a list of lists that I later do more with. The text file is formatted so that each piece of information is separated by ", " and then at the end of each "person" there is a "\n" For example, 111, Joe, Jones, 09-01-1980, 10-19-1999, 95000

I am close. But stuck on one small thing. My current code:

def readFile(fileName):
    myFileObj = open(fileName, "r")
    peopleStr = myFileObj.read()
    peopleList = peopleStr.split("\n")
    newPeopleList = []
    for el in peopleList:
        sub = el.split(" ,")
        newPeopleList.append(sub)
    print(newPeopleList)
    
    return newPeopleList

This newPeopleList returns

[['111, Joe, Jones, 09-01-1980, 10-19-1999, 95000'], ['113, James, Jo, 10-02-1982, 10-18-1998, 85000'], ['123, Jordan, Joul, 08-04-1988, 10-17-1988, 80000']]

But what I need is

[[111, 'Joe', 'Jones', '09-01-1980', '10-19-1999', 95000], [113, 'James', 'Jo', '10-02-1982', '10-18-1998', 85000], [123, 'Jordan', 'Joul', '08-04-1988', '10-17-1988', 80000]]

So they each can be their own item in the list!

I hope this makes some sense, and I appreciate any help!

Upvotes: 4

Views: 79

Answers (3)

ElapsedSoul
ElapsedSoul

Reputation: 825

you can get what you want more pythonic:

list(map(lambda x:x.split(', '),open(filename,'r').readlines()))

you delimiter which is ' ,' in your own code is wrong, while it needs ', '.

Upvotes: 0

Synthaze
Synthaze

Reputation: 6080

listOfLists = []

with open(filename, "r") as msg:
   for line in msg:
      listOfLists.append(line.strip().replace(" ","").split(","))
   msg.close()

This should make it. You read your file line by line, you replace the blank spaces by nothing, you split by "," each line to make a list of it that you store in your list of lists.

Upvotes: 2

Wasif
Wasif

Reputation: 15470

Try this:

newlist = [[y.split(", ")] for x in newPeopleList for y in x]
print(newlist)

Upvotes: 0

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