shoyer on Python bug: Can assign [] = (), but not () = []

Comment on Python bug: Can assign [] = (), but not () = []parent

As an occasional numpy contributor, I would call this a bug.

Yes, the expected output is xx›

  xxx›

teddyh 11y

xxxₓ

pluma 11y

xxxv, actually.

(it makes sense if you know why Roman numerals look the way they do)

ngoldbaum 11y

Good point - I found it after it caused a really weird bug in a library I use. I'll open an issue on github...

ngoldbaum 11y

Turns out it's deprecated:

    >>> import warnings
    >>> warnings.simplefilter('always')
    >>> 'x'*np.float64(3.5)
    __main__:1: DeprecationWarning: using a non-integer number instead of an integer will result in an error in the future
    'xxx'

im3w1l 11y

I get no such warning with 2.7.9 on linux.

dalke 11y

It would be a warning from numpy, not Python. That comes from numpy/core/src/multiarray/conversion_utils.c and was added 2013-04-13 , which would be for NumPy 1.8, I believe.

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