Suggestion for an enhancement: loadtxt() and genfromtxt() have the option to specify converters but only on a per-column basis. If you have many columns and want to use the same converter on all of them, it would be nice to be able to do that without having to create a giant dictionary containing the same converting function over and over again.

So instead of having

np.loadtxt('myfile', converters={0: myfunc, 1: myfunc, 2: myfunc, 3: myfunc, 4: myfunc, 5: myfunc, 6: myfunc, 7: myfunc, 8: myfunc, 9: myfunc})

it would be nice to use something like

np.loadtxt('myfile', converters=myfunc)