[Numpy-discussion] small bug in ndarray.flatten()?

Chao YUE chaoyuejoy@gmail....
Thu Apr 5 10:17:15 CDT 2012


nice to know this. can also use b.transpose().flatten() to circumvent it.

thanks,

Chao

2012/4/5 Pierre Haessig <pierre.haessig@crans.org>

> Hi,
>
> Le 05/04/2012 15:00, Olivier Delalleau a écrit :
> > Ok, it looks weird indeed. I was using numpy 1.6.1 myself, not sure if
> > it's a bug that's been fixed in 1.6.
> > Try without the keyword argument (b.flatten('C')), see if at least
> > that works.
>
> I can reproduce Chao's bug with my numpy 1.5.
>
> As you've just suggested, it runs fine when there is no keyword.
>
> In [1]: a= np.arange(10)
>
> In [2]: a.flatten('C') # Works well
> Out[2]: array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])
>
> In [3]: a.flatten(order='C') # Chao's bug
> ---------------------------------------------------------------------------
> TypeError                                 Traceback (most recent call last)
> /home/pierre/<ipython-input-3-33cfe1eff84b> in <module>()
> ----> 1 a.flatten(order='C')
>
> TypeError: flatten() takes no keyword arguments
>
> In [4]: a.flatten? # indeed says there is a keyword order='C'
>
> In [5]: np.__version__
> Out[5]: '1.5.1'
>
> Now if the bug is fixed in 1.6, there's nothing more to do than just
> wait for the update !
> (Debian testing in my case)
>
> Best,
> Pierre
>
>
>
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>


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