Python sample without 0

I need to sample k numbers in [-n,-1] union [1,n] without replacement. Why doesn't this code work?

random.sample(range(-n,n+1).remove(0),k)

I get

Traceback (most recent call last):
  File "<input>", line 1, in <module>
  File "/usr/lib/python2.7/random.py", line 319, in sample
    n = len(population)
TypeError: object of type 'NoneType' has no len()