将文本中的数字读入 python 中的变量

Question

assume i have a text file that only has the following format where each line has two numbers separated by a space:

2 4
66 99
11 67
1 3 

this is my code which i tried doing:

with open('text_file.txt') as file:
    lines = []
    for i in file:
        lines.append(i)
    print(lines)

the problem with my code is that it keeps printing "\n" with the numbers and i don't know how to get around that i need a way to read only the two numbers in the last line and store each number in a variable, so for the example above:

var1 = 1 , var2 = 3 .

i need this for a multi-threading program, where i am testing a "race condition" between three threads where each thread reads the last two numbers in the text file and read the last line of numbers, and then print the thread_ip in the first,and increment the second from the previous last line and print it.

im not asking for help for the whole assignment, just the reading/writing the text file part is what i can't seem to figure out.

Answer 1

with open("example_file", "r") as fin:
   var1, var2 = [int(i) for i in fin.readline().split()]

To store the last two numbers in the last line:

with open("example_file", "r") as fin:
   var1, var2 = [int(i) for i in fin.readlines()[-1].split()]

Answer 2

So both of the examples in the currently accepted answer from izhang work, but they come with a cost... In the first example, you have to needlessly walk the entire file to come to the last line. And in the second example, you have to read the entire file into memory. If dealing with large datasets, and/or running inside of constrained containers, this will absolutely become a problem.

The better solution is to read the file backwards and break after the first read line. This is not an easy task to do from scratch, but fortunately, there is a module for that.

from file_read_backwards import FileReadBackwards

with FileReadBackwards('text_file.txt') as f:
    for l in f:
        var1, var2 = l.split()
        break
print(var1, var2)