CODEWITHSUNDEEP
pythonlistfile
Daniel
Daniel

Reputation: 23

How do I make multiple lists from a file?

I am using this code to make labels in tkinter. After clicking on them, the text from list1 changes to text form list2. I want to append the text into the lists from a txt file. 

self.list1 = [line.rstrip('\n') for line in open("file.txt", encoding = "utf-8")]
self.list2 = [line.rstrip('\n') for line in open("file2.txt", encoding = "utf-8")]

Do I have to make for each list a single txt file? (How) can I make several lists from just one file?

Thanks

Upvotes: 1

Views: 154

Answers (1)

Jordan
Jordan

Reputation: 515

def from_file_to_lists(name,lists): #Where lists[0] = list1, lists[1] = list2 etc
    i = 0
    for line in open(name, encoding = "utf-8"):
        line = line.rstrip('\n')
        if "line%s" % (i+1) in line: #if next list in line
            i +=1  #go to next list
            continue #dont write list name inside the list
        lists[i].append(line)
    return lists

#How to call
list0 = []
list1 = []
list2 = []
lists = [list0,list1,list2]
lists = from_file_to_lists("file.txt",lists)

Your file.txt should be like

Hello i
am list0
list1
Hello, i am
the second list
list2
i am the last

Your list numbering inside the txt file should start from 0, else change

if "line%s" % (i+1) in line:

to if "line%s" % (i+2) in line:

Upvotes: 2

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