Read tuples from text file

Question

I need to read tuples from a txt. I tried with numpy (using genfromtxt) but it didn\'t work (or at least, I don\'t know how). This is is my txt:

(0,0) (0,0)         


        

Answer 1

You can try regular expression too here:

import re
pattern='\((\d+,\d)\)'
with open('demo.txt','r') as f:
    for line in f:
        data=re.findall(pattern,line)
        data_1=[]
        for item in data:
            data_1.append(tuple(map(lambda x:int(x),item.split(','))))
        if data_1:
            print(data_1)

output:

[(0, 0), (0, 0), (1, 0), (2, 3)]
[(1, 0), (1, 1), (1, 1), (3, 3)]
[(2, 0), (1, 2), (2, 1), (4, 4)]
[(3, 0), (2, 2), (3, 1), (5, 5)]

Or even better:

import re
pattern='\((\d+,\d)\)'
with open('demo.txt','r') as f:
    for line in f:
        data=re.findall(pattern,line)
        data_1=[tuple(map(lambda x:int(x),item.split(','))) for item in data]
        if data_1:
            print(data_1)