Q) TypeError: bad operand type for unary -: 'str'

Answer:

Edit 1: As requested, here is the rest of the code to the function.
with open(file_path, 'r') as f:
result = [tuple(map(int, line.split())) for line in f]

for i in range(len(result)):

   for j in range(len(result[i])):
      result[i][j] = (result[i][j] - min(result[i])) / (max(result[i]) - min(result[i]))
      result[i] = np.array(result[i])

print(result)

I have edited the code to use int() but it still doesn't seem to work.
Edit 2: It works now. Thank you everyone for helping me!

A:

int('0.0') raises a TypeError because int() cannot convert strings that do not contain only whole numbers (without decimals). float() can convert these strings to floats.
int('1.0')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: int() argument must be a string, a bytes-like object or a number, not 'float'