Python Taskbook Level 9.6

Задание 1

Given an arbitrary two-dimensional list:

python[
  [11, 12, 13, 14, 15],
  [21, 22, 23, 24, 25],
  [31, 32, 33, 34, 35],
  [41, 42, 43, 44, 45],
  [51, 52, 53, 54, 55],
]

Zero out the elements below the main diagonal:

python[
  [11, 12, 13, 14, 15],
  [ 0, 22, 23, 24, 25],
  [ 0,  0, 33, 34, 35],
  [ 0,  0,  0, 44, 45],
  [ 0,  0,  0,  0, 55],
]

Задание 2

Given some URL:

pythonurl = 'http://test.com/dir1/dir2/dir3/page.html'

Given variables:

pythonnum = 2;
val = 'eee'

Replace the folder with the number num in the URL with the value val:

python'http://test.com/dir1/eee/dir3/page.html'