code: def rotate(l, steps=1):
      r
      if len(l):
          steps %= len(l)
          if steps:
              res = l[steps:]
              res.extend(l[:steps])
      return res
docs: r"""Rotates a list `l` `steps` to the left. Accepts
      `steps` > `len(l)` or < 0.
  
      >>> rotate([1,2,3])
      [2, 3, 1]
      >>> rotate([1,2,3,4],-2)
      [3, 4, 1, 2]
      >>> rotate([1,2,3,4],-5)
      [4, 1, 2, 3]
      >>> rotate([1,2,3,4],1)
      [2, 3, 4, 1]
      >>> l = [1,2,3]; rotate(l) is not l
      True