Error message: AttributeError: module 'numpy' has no attribute 'flip'
I can't understand why it's giving me this error, I've googled and made sure I'm up to the latest version of numpy. I definitely don't have another file called numpy in my working directory. Any help would be greatly appreciated!
np.flip has been introduced for versions v.1.12.0 and beyond. For older versions, you can consider using np.fliplr and np.flipud.
Alternatively, upgrade your numpy version using
sudo pip install --upgrade numpy Yes,flip is new, but there isn't anything magical about it. Here's the code:
def flip(m, axis): if not hasattr(m, 'ndim'): m = asarray(m) indexer = [slice(None)] * m.ndim try: indexer[axis] = slice(None, None, -1) except IndexError: raise ValueError("axis=%i is invalid for the %i-dimensional input array" % (axis, m.ndim)) return m[tuple(indexer)] The essence of the action is that it indexes your array with one or more instances of ::-1 (the slice(None,None,-1)). flipud/lr do the same thing.
With this x, flip does:
In [826]: np.array([1,2,3])[::-1] Out[826]: array([3, 2, 1])