Place variable into array in Python

Question

My text file has a single line that will be overwritten from time to time. The actual value is:

5,7,1,1,6,7,27

I want to read this *.txt and place its content inside a np.array, so that it would be:

new = np.array([[5,7,1,1,6,7,27]])

What I tried:

import numpy as np
from pathlib import Path
txt = Path('c:\MyFolder\myValue.txt').read_text()
new = np.array([[txt]])

How to correct this?

what happens when you do it this way? Do you get an error message / traceback? I'd suggest print(txt) to see what this object actually is. — JacobIRR
– JacobIRR, Commented Jun 9, 2022 at 20:23
have you looked up "how to read a text file into a numpy array"? — juanpa.arrivillaga
– juanpa.arrivillaga, Commented Jun 9, 2022 at 20:35
@JacobIRR the message was "ValueError: Input 0 of layer sequential is incompatible with the layer: expected axis -1 of input shape to have value 7 but received input with shape (None, 1)". Yes, i used print(txt) and it showed 5,7,1,1,6,7,27. When print(new) it showed [['5,7,1,1,6,7,27']] — faraho
– faraho, Commented Jun 10, 2022 at 13:34
@juanpa.arrivillaga Hi! Yes, thank you, but I did a thorough search but yielded unsatisfactory results. — faraho
– faraho, Commented Jun 10, 2022 at 13:51

Alexander · Accepted Answer · 2022-06-09 20:26:24Z

2

Try this:
All I did was split the string by the ',' delimiter, then cast the values to int.

import numpy as np
from pathlib import Path
txt = Path('c:\MyFolder\myValue.txt').read_text()
new = np.array([[int(i) for i in txt.split(',')]])

answered Jun 9, 2022 at 20:26

Alexander

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