libpng error: Write Error

[sn2234]

Uninstalled Anaconda 4 and installed Anaconda 5 on windows server 2016 (VS2017 preview on the same machine), Anaconda 4 worked fine
(C:\Users\Administrator\Anaconda3) C:\Users\Administrator\Documents>conda list libpng

packages in environment at C:\Users\Administrator\Anaconda3:

libpng 1.6.32 vc14hce43e6c_2 [vc14]

(C:\Users\Administrator\Anaconda3) C:\Users\Administrator\Documents>conda list matplotlib

packages in environment at C:\Users\Administrator\Anaconda3:

matplotlib 2.0.2 py36h58ba717_1

(C:\Users\Administrator\Anaconda3) C:\Users\Administrator\Documents>python
Python 3.6.2 |Anaconda, Inc.| (default, Sep 19 2017, 08:03:39) [MSC v.1900 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.

import numpy as np
import matplotlib.pyplot as plt
xx = (np.random.rand(100, 100) > 0.5).astype('uint8')
xx.shape
(100, 100)
plt.imshow(xx)
<matplotlib.image.AxesImage object at 0x00000190EB0040B8>
plt.imsave("xx.png", xx)
libpng error: Write Error

(C:\Users\Administrator\Anaconda3) C:\Users\Administrator\Documents>dir xx.png
Volume in drive C has no label.
Volume Serial Number is D89A-3D90

Directory of C:\Users\Administrator\Documents

10/09/2017 05:26 PM 0 xx.png
1 File(s) 0 bytes
0 Dir(s) 40,410,468,352 bytes free

(C:\Users\Administrator\Anaconda3) C:\Users\Administrator\Documents>

[mingwandroid]

Single-line reproducer:

python -c "import numpy as np; import matplotlib.pyplot as plt; xx = (np.random.rand(100, 100) > 0.5).astype('uint8'); plt.imsave('C:\\xx.png', xx)"

[mingwandroid]

Any chance of testing with this new package?:

conda update -c c3i_test2 libpng

[sn2234]

Works for me now, thanks!

[mingwandroid]

Thank you for the feedback.

[bsipocz]

@mingwandroid - is there an ETA for the fixed packages getting distributed in the default channel? I'm just asking to see whether it makes any sense to add a workaround for our failing appveyor builds or can simply just wait this out.

[mingwandroid]

@bsipocz, Did the new package work for you or are you not in a position to test them?

[bsipocz]

It worked for one of our maintainers on his windows laptop, haven't checked it on appveyor yet, but I assume it will work, there too.

[mingwandroid]

This has been released now, please close if this works for you @bsipocz.

[bsipocz]

@mingwandroid - Thank you, indeed it works now.

(I can't close the issue though as it wasn't me who opened it).

[mingwandroid]

OK, thank you for the feedback, closing.