np.linalg.norm doesn't work, when performed along an axis

[Baekalfen]

Python 2.7.15rc1 (default, Nov 12 2018, 14:31:15)
[GCC 7.3.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import bohrium as np
>>> np.linalg.norm(np.ones((2,2,2)),axis=0)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "bohrium/bhary.pyx", line 95, in bohrium.bhary.fix_biclass_wrapper.inner
  File "/home/mads/.bin/bohrium/lib/python2.7/site-packages/bohrium/linalg.py", line 291, in norm
    raise NotImplementedError("Unsupported value of param ord=%s" % axis)
NotImplementedError: Unsupported value of param ord=0

Calling it without an axis works, but gives of course a different result:

>>> np.linalg.norm(np.ones((2,2,2)))
2.82843

[dionhaefner]

In case it's not already obvious, a workaround is

np.sqrt(np.sum(arr**2, axis=0))

(at least for real numbers)

[Baekalfen]

I hadn't thought of that. Thanks!