Tashaho - 1 month ago 10

Python Question

How to create create a list of lists with random numbers in Python? The length of the list and the sub-lists will be random too.I tried this.

`import random`

p= []

for a in range(random.randint(5,7)):

p.append(random.randint(1,20))

k=[]

for b in range(random.randint(4,8)):

k.append(p)

print k

why it did not work?

Answer Source

You can use `random.sample`

provided your range is larger than the number of random variables you select from it. This approach ensures each random value in the nest list is unique:

```
from random import randint
import random
number_of_lists = randint(0,1000)
random_data = []
for number in xrange(0,number_of_lists):
list_length=randint(0,1000)
random_data.append(random.sample(range(1, 100000), list_length))
```