Couldn't select pixels of TPFs in interact()

Problem description interact() is not working properly. I could not select the pixels in TPFs. When I try to select a pixel, the bottom row pixels automatically get selected. I could not select any pixel other than the bottom row pixels.

Example

import lightkurve
tpf = lk.search_targetpixelfile("HL Tau", author='K2', campaign=13, cadence='long').download()
tpf.interact()

Expected behavior When I click a pixel in the tpf stamp, the pixel actually should get selected. But it doesn’t. Instead, the pixels of the lowest row get selected. I couldn’t select any pixel other than the pixels of the lowest row.

Environment

• Windows
• lightkurve version 2.0.3
• installation method - pip
• Executed the code in Python 3 in JupyterNotebook (version 6.2.0)

[gully]

Hey ya’ll, yes Bryan is absolutely right, and the bug is clear— I used 2D arrays for a ColumnDataSource, that only supports 1D arrays. The fact that it worked at all is sort of a coincidence/miracle, and I thank Bryan for figuring that out, and also apologize for letting this issue fester and polluting your notifications. Sorry Bryan! We are grateful for all the awesome bokeh features that enabled this popular interact() dashboard.

The clear fix is to flatten and the arrays. I started a PR (linked) in that direction, but it needs some spot-checking of array shapes that is tricky to do without some numpy surgery. If any lightkurve users want to pair code with me for fun, tweet @ me: gully_ And yes to reiterate what previous folks have said, the temporary workaround is to use bokeh <2.3, but we emphasize that’s temporary while we address the root cause.

[barentsen]

Update: a fix for this issue has been included in the Lightkurve v2.2.0 release.