Python list initialization using multiple range statements

Question

I want one long list, say [1,2,3,4,5,15,16,17,18,19] as an example. To initialize this, I try typing:

new_list = [range(1,6),range(15,20)]

Answer 1

i would like to propose u a version without +

import operator
a = list(range(1,6))
b = list(range(7,9))
print(operator.concat(a,b))