I just followed the example, and I get the following error

[Navifra-Kerry]

Traceback (most recent call last):
File "train.py", line 4, in
import cntkx as Cx
File "C:\Anaconda3\lib\site-packages\cntkx_init_.py", line 1, in
from . import layers
File "C:\Anaconda3\lib\site-packages\cntkx\layers_init_.py", line 1, in
from .layers import *
File "C:\Anaconda3\lib\site-packages\cntkx\layers\layers.py", line 316
assert x.shape[0] > 0, f"input tensor must have a defined shape, input shape is {x.shape}"
^
SyntaxError: invalid syntax

D:\GIT\Segmentation\ImageSegmentation>python unettest.py
C:\Anaconda3\lib\site-packages\cntk\cntk_py_init.py:32: UserWarning: Unsupported Windows version (7). CNTK supports Windows 10 and above, only.
warnings.warn('Unsupported Windows version (%s). CNTK supports Windows 10 and above, only.' % my_distro_ver)
Traceback (most recent call last):
File "unettest.py", line 2, in
import cntkx as CX
File "C:\Anaconda3\lib\site-packages\cntkx_init_.py", line 1, in
from . import layers
File "C:\Anaconda3\lib\site-packages\cntkx\layers_init_.py", line 1, in
from .layers import *
File "C:\Anaconda3\lib\site-packages\cntkx\layers\layers.py", line 316
assert x.shape[0] > 0, f"input tensor must have a defined shape, input shape is {x.shape}"
^
SyntaxError: invalid syntax

[delzac]

Hi,

The assertion checks if the input tensor into the SinusoidalPositionalEmbedding() has a defined shape. It seems like your input tensor doesn't have a shape.

import cntk as C
import cntkx as Cx

a = C.sequence.input_variable(10)
b = Cx.layers.SinusoidalPositionalEmbedding()(a)
assert b.shape == (10, )

It checks if a has a shape or not. If you still have problems, i please paste your code and i'll help you take a look :)

[Navifra-Kerry]

https://github.com/kerryJo/ImageSegmentation.git

source is in my repository,
I just imort cntkx but I have problems

[delzac]

I couldn't find any import cntkx in your repo, maybe you need to update it to the latest. Did you do a pip install cntkx?

[Navifra-Kerry]

Yes.
Installed with pip , It happens only with import from that code.

[delzac]

Can you uninstall and reinstall cntkx again? I'm on cntkx 0.1.1 and python 3.6 and i can't replicate the bug.

[Navifra-Kerry]

It is the same install it again.
Is not it possible to use python 3.6.6 anaconda shared environment?

[delzac]

hi @kerryJo i have just changed the API of SinusoidalPositionalEmbedding in the newest release of cntkx. Its now in version 0.1.2, please update again using the follow commands:

pip uninstall cntkx
pip install cntkx

It is perfectly fine to use python 3.6.x anaconda environment, i'm using an anaconda envs too.

Create a single a "check_cntkx.py" file with a single line of code:
import cntkx as Cx

If should run without error. Let me know if it works or not!

[Navifra-Kerry]

Traceback (most recent call last):
File "unettest.py", line 1, in
import cntkx as Cx
File "C:\Anaconda3\lib\site-packages\cntkx_init_.py", line 1, in
from . import layers
File "C:\Anaconda3\lib\site-packages\cntkx\layers_init_.py", line 1, in
from .layers import *
File "C:\Anaconda3\lib\site-packages\cntkx\layers\layers.py", line 452
raise ValueError(f"a constant initializer was passed that is of wrong shape {init.shape}")
^

same error..
What is the problem?ㅠㅠ

[delzac]

Is it still a syntax error? I don't think it has anything to do the library, but your python interpreter or envs.

[delzac]

Wait, are you sure you are using python3.6, cause it seems like the errors are being raised when f-strings are used.

Python 3.6 allows for f-string.

[Navifra-Kerry]

ok wait for you

[delzac]

@kerryJo please use python3.6 and above when using cntkx. You are getting errors because you are using the wrong python version it seems.

[Navifra-Kerry]

Thank you. The Python version of the anaconda environment was 3.5. I'll check again after the upgrade.

[delzac]

Feel free to reopen this issue again if the issue is not resolved! :)