Can't append 2 strings the way I want

Asked Mar 07 '19 at 04:59

Active Mar 07 '19 at 06:35

Viewed 53 times

I am have some issues with something I thought it should be pretty straightforward in python. So I have this code:

import numpy as np
a = ["n","alpha"]
a = np.array(a)
print(a[0])
print(a[1])
a[0] = a[0]+"+"+a[1]
print(a[0])

The output of this is:

'n'
'alpha'
'n+alp'

Why is that last output like that instead of 'n+alpha' and how can I make it the way I want? Thank you!

edited Mar 07 '19 at 06:35

martineau

asked Mar 07 '19 at 04:59

BillKet

I think you are doing it in wrong way, try a[0]+a[1] – Deadpool Mar 07 '19 at 05:06
1

This is because how strings work in numpy. Try line 3: `a = np.array(a, dtype=object)` – Oliver Ni Mar 07 '19 at 05:07
@Deadpool I want my final output for the first element to be "n+alpha" – BillKet Mar 07 '19 at 05:07
Pay attention to the `a.dtype`. A string dtype array has a fixed length. It's not exactly the same the Python string type. – hpaulj Mar 07 '19 at 07:13

0 Answers0