How do I sample a certain number of rows in a database table from a python script?

Question

I have a table with a list of items. I created a randomly generated order list to create 500 orders with item range 1-5. I need to take the numbers in the orders list and randomly generate x amount of rows from the items table.

import random
import numpy

Orders = numpy.random.randint(1,6,size=500)

for o in Orders:
    cursor.execute("SELECT * FROM items limit 5")
    row = cursor.fetchmany(size = o)
    while row is not None:
        print(row)
        row = cursor.fetchmany(size = o)

this is giving me an endless amount of empty lists.

EDIT:

for o in Orders:
    cursor.execute("select * from items order by rand() limit 5")
    row = cursor.fetchmany(size = o)
    print(row)

I just edited the code to the above. It is now working for the first number in the order list. How do I get it to loop through the entire order list?

Answer 1

What is the intention of size = o ? Also, is that ao instead of 0? The size arg will limit the number of rows returned.

From the MySQL docs:

The number of rows returned can be specified using the size argument