ReadFile Error: invalid literal for int() with base 10: '\n'

Question

I'm trying to create a MST with Prim's algorithm, but when I try to read the .txt file which holds the nodes and their weights this error pops: ValueError: invalid literal for int() with base 10: '\n' my .txt file has a format like this:

1. 6
2. 0 0 1
3. 0 1 6
4. 0 1 9
5. 0 2 3 (the number.dot is for formatting reasons, original text file is without them)

and the first part of the code that reads the .txt file is this :

import heapq

mst=[]
usedVertices=set()
with open("C:/Users/DESPACITOOOOOOOOO/AppData/Local/Programs/Python/Python39/text.txt") as f:
    numVertices=int(f.readline())
    edges=[[]for _ in range(numVertices)]
    for line in f.readlines():
        edge=tuple(map(int,line.split(" ")))
        if edge[0]==edge[1]:continue
        heapq.heappush(edges[edge[0]],(edge[2],edge[1]))
        heapq.heappush(edges[edge[1]],(edge[2],edge[0]))

Any Ideas? Thank you in advance