python: easiest way to get a string of spaces of length N

What's the easiest way to generat开发者_JAVA技巧e a string of spaces of length N in Python?

(besides something like this, which is multiline and presumably inefficient for large n:

def spaces(n):
  s = ''
  for i in range(n):
    s += ' '
  return s

)

try this, simple, only one line:

    ' ' * n

It's as simple as:

s = ' ' * N

You could do it as a function:

def spaces(n):
    return ' ' * n

Or just use the expression:

' ' * n

Off the top of my head:

spaces = lambda x: ' ' * x

All these point mongers are no fun, and their simple answers stink.

The true answer is as follows:

def give_me_spaces(n):
    return (lambda : ''.join(' ' for _ in xrange(n)))()

Also it's clearly superior because it uses functional programming.

Had to dig through my python helper functions to find this, but here it is. It's served me well.

spaces = (lambda n: 
          (lambda z: z(lambda f: lambda m:'' if m <= 0 else ' ' + f(m - 1))(n))
          (lambda f:(lambda x:f(lambda*a:x(x)(*a)))(lambda x:f(lambda*a:x(x)(*a)))))