python – How to add elliptic curve points from a file?

i’m just a tech newbie learning how ec cryptography works and stumbled into a problem with my python code

i’m testing basic elliptic curve operations like adding points, multiple by G etc, let’s say i have

Ax = 0xbc46aa75e5948daa08123b36f2080d234aac274bf62fca8f9eb0aadf829c744a
Ay = 0xe5f28c3a044b1cac54a9b4bf719f02dfae93a0bae73832301e786104f43255a5
A = (Ax,Ay)

f = open('B-coordinates.txt', 'r')
data = f.read()     
f.close()     
print (data)            
B = 'data'

there B-coordinates.txt contains lines like
(0xe7e6bd3424a1e92abb45846c82d570f0596850661d1c952f9fe3564567d9b9e8,0x59c9e0bba945e45f40c0aa58379a3cb6a5a2283993e90c58654af4920e37f5)

then i perform basic point addition A+B add(A,B)

so because of B = ‘data’ i obviously have this error

TypeError: unsupported operand type(s) for -: 'int' and 'str'

and if i add int(data) > Error invalid literal for int() with base 10: because letters in input (i.e. in points coordinates).

so my question is, please can someone knowledgeable in python and elliptic curve calculations tell me how to add the coordinates of a point so as to bypass these int problems when extracting lines from a file into .py? I will be very grateful for the answer! I’ve been trying to figure out how to do it right for many hours now, and maybe just goofing off, but please I’ll appreciate any hints