Deprecated Data Type

[fxweidinger]

I just did a clean install via pip and ran into the following issue when trying to analyze images:

Pre-pocessing image pair: 1 Evaluating image pair: 1 Validated first pass result of image pair: 1. PIV evaluation thread stopped. module 'numpy' has no attribute 'int'.

np.int` was a deprecated alias for the builtin `int`. To avoid this error in existing code, use `int` by itself. Doing this will not modify any behavior and is safe. When replacing `np.int`, you may wish to use e.g. `np.int64` or `np.int32` to specify the precision. If you wish to review your current use, check the release note link for additional information. The aliases was originally deprecated in NumPy 1.20; for more details and guidance see the original release note at: https://numpy.org/devdocs/release/1.20.0-notes.html#deprecations

From what I gather, this should be fixed with the latest release, but the issue still occurs for me.

numpy==1.24.3
openpivgui==0.4.14

[mplough]

If you have numpy>=1.24 installed, you'll see this issue because the np.int deprecation expired in numpy 1.24.0.

Use of np.int happens in OpenPIV, not in the GUI. The issue was fixed in OpenPIV/openpiv-python@97fe900 and is available in the latest version of OpenPIV, 0.25.0.

However, openpivgui 0.4.14 pins OpenPiv==0.23.8. The issue will continue to occur with new installs until the GUI either pins an earlier version of numpy or until it updates to the latest version of OpenPIV.

[alexlib]

@eguvep - could we update the GUI to use the latest OpenPIV?

[newedb]

new to python, openpiv and the GUI. I have to say this numpy version really gave me a headache. I am wondering if someone already figured out a workaround, which I can adopt to quickly get back to my data, instead of spending hours learning everything from ground up. Thanks a lot.

[alexlib]

new to python, openpiv and the GUI. I have to say this numpy version really gave me a headache. I am wondering if someone already figured out a workaround, which I can adopt to quickly get back to my data, instead of spending hours learning everything from ground up. Thanks a lot.

please explain what is the problem now. it's not installable? which platform? what is the installation path you take?

[newedb]

please explain what is the problem now. it's not installable? which platform? what is the installation path you take?

I am sorry, new to gitbub too. It is exactly the same issue in the original post, the deprecation of np.int.
I installed the latest version of python, openpiv and pienpivgui in a Windows 11 environment.
Thanks a lot.

[alexlib]

you can use google user groups openpiv-users to upload your screenshots/error messages, etc. so we could get to the problem.
I'm not using Windows 11 yet, so it's a matter of testing it.

[newedb]

you can use google user groups openpiv-users to upload your screenshots/error messages, etc. so we could get to the problem. I'm not using Windows 11 yet, so it's a matter of testing it.

Thanks a lot. Heading there.

[fxweidinger]

Did you guys manage to fix the issue? I changed all np.int32 to just int and I'm still getting the error.. I can't process any image.. Is there a workaround?

No idea if you are still looking for input.
I think you're misinterpreting what was said. The use of np.int in the pinned OpenPIV version is the culprit. There is no need however to replace np.int32
I managed to fix it back in the day by manually cloning openpiv fixing the use of np.int, installing from my local sources and then installing the gui.

Obviously that's a bit of a hacky solution...
Simply pinning 0.25.0 (or newer) however will cause new errors due to various changes in that version of OpenPIV.

I could look into this, but I am unsure what the roadmap for this gui is. (If there is one? Maybe @alexlib can shed some light on this?)

[alexlib]

Hi,

We created a workaround - #57 (comment)

The problem is that the newer numpy does not work with the older openpiv, but the newer openpiv version that works with newer numpy - does not work with "older" openpiv_tk_gui

Could we please work together to create an updated openpiv_tk_gui that works with the openpiv at > 0.25 version?

Thanks
Alex