Compiles Python code with no error but giving out no output - what's wrong with it?

[pythonflea]

Am running Python 3.8.10 in a 32-bit Windows 7 computer with only 2GB memory and no video card (not even an NVIDIA) - it's a two decade old netbook...
Tried running the following code:

import numpy as np
from scipy import ndimage

def predict_next_string(database):
  # Split the database into a list of strings
  strings = np.array(database.split('\n'))

  #last_two_strings = ndimage.laplace(strings.astype(bool), mode='constant')

  # Check if there are at least two strings
  if len(last_two_strings) < 2:
      print ("Not enough strings in the database,")
      return

  # Get the second-to-the-last string in the list
  last_string = last_two_strings[-1]

  # Split the last string into a list of integers
  last_string_numbers = [int(x) for x in last_string.split()]

  # Increment each number by one and return the resulting string
  predicted_string = ' '.join([str(x + 1) for x in last_string_numbers])

  print("The predicted next string is", predicted_string)
 
database = """5 3 4 5 1 2
1 3 1 5 0 4
2 3 0 5 1 2
0 5 4 0 5 2
1 1 0 5 2 4
4 1 4 3 0 0
4 3 3 3 2 3
2 3 3 1 4 1
4 2 3 3 1 1
2 3 1 4 4 2
0 2 3 4 2 2
3 4 5 4 5 1
2 4 3 1 0 2
2 1 2 2 0 5
4 4 1 0 1 3
2 2 5 4 0 2
3 2 2 2 4 3
4 1 3 3 3 2
5 3 3 1 3 5
1 0 2 2 5 3
1 3 3 5 0 2
2 3 4 1 1 0
0 0 4 2 4 1
4 3 2 4 1 3
3 4 4 1 1 4
1 2 4 1 5 4
5 5 4 2 0 5
5 4 1 4 5 5
4 4 4 2 2 0
1 3 1 2 0 1
1 2 4 4 5 5
3 2 1 4 5 5
5 1 5 2 5 4
1 2 4 1 5 2
5 5 4 2 0 5
5 4 1 4 5 5 
4 4 4 2 2 0
1 3 1 2 0 1
1 2 4 4 5 5 
3 2 1 4 5 5
5 1 5 2 5 4
0 1 5 5 5 4
3 3 1 5 3 5 
"""

It is meant to predict the next string of 6 numbers from 0 to 5.
There are no errors when I compiled it - but for some reason, it's not giving out an output. (see attachment - if visible - for screenshot of output)

What could be wrong with the code?

[perfringo]

It’s not giving output because you never call the function.

[pythonflea]

It’s not giving output because you never call the function.

So does that mean I need to insert this line in the code?

print("The predicted next string is", predict_next_string(database))

Was that correct?
That calls up the function and the database, right?

[menator01]

A simple example of calling a function

# Basic function
def my_function():
    print('function has been called')

# Call the function
my_function()

[buran]

That calls up the function and the database, right?

That calls function and pass database as argument.

[pythonflea]

That calls up the function and the database, right?

That calls function and pass database as argument.

But if I'm to revise the code by inserting that edit, it won't return an error in compiling?

[buran]

But if I'm to revise the code by inserting that edit, it won't return an error in compiling?

Why not try and see what will happen?