Can not start up hfinder

[skycattmll]

• hcam-finder version: 1.3.4
• Python version: 3.9
• Operating System: MacOS Sonoma 14.2, Mac pro with M2 chip

Description

Before on a Mac pro with intel chip the old version 1.1.2 runs perfectly. The whole system was transferred to a new Mac pro with M2 chip.

I updated the hcam_finder version from 1.1.2 to 1.3.4 and I ran hfinder then it gives such error messages:

Traceback (most recent call last):
  File "/Users/iac/opt/anaconda3/bin/hfinder", line 28, in <module>
    from hcam_widgets.compo import widgets as compo_widgets
  File "/Users/iac/opt/anaconda3/lib/python3.8/site-packages/hcam_widgets/compo/widgets.py", line 16, in <module>
    from .utils import (
  File "/Users/iac/opt/anaconda3/lib/python3.8/site-packages/hcam_widgets/compo/utils.py", line 103, in <module>
    importlib_resources.files("hcam_widgets") / "data" / "compo_lens_offset.csv"
AttributeError: module 'importlib.resources' has no attribute 'files'

What I Did

I uninstalled the latest version and reinstalled the old version but the problem was not solved.

[StuartLittlefair]

Hi @skycattmll

Sorry for the slow response, I was away a lot over Xmas. The underlying issue here is with backwards incompatible changes to the importlib module that were introduced in Python 3.9. It might be solved by:

• updating hcam_widgets, or
• tweaks to the code.

So I know which is needed, can you let me know the results of

import hcam_widgets
hcam_widgets.__version__

Thanks!

[StuartLittlefair]

It is possible this is also fixed by upgrading the importlib_resources library, which is a backport of importlib for older Python versions. Can you also let me know if pip install -U importlib_resources fixes your issue?

[skycattmll]

Hi @StuartLittlefair

I tried pip install -U importlib_resources but the problems continues

the result of import hcam_widgets hcam_widgets.__version__ is 1.1.2

[StuartLittlefair]

Apologies @skycattmll

I haven't forgotten about this! It will require changes to the way we package files within the repository and I'm trying to work out how to do this so it works for all versions of Python

[StuartLittlefair]

Hi @skycattmll

I think I have a version that works with older Python installations now. I'm not sure it will all work as desired (we may have other dependencies that are too old - e.g Ginga), but at least this issue should be addressed.

Can you try pip install hcam_finders==1.3.5 and let me know if you have any success?

[skycattmll]

Thank you very much @StuartLittlefair

now sudo pip install hcam_finder==1.3.5 solve the problem and can launch the GUI.

I have another question: now seems that hfinder fails to get the PS1 image, saying there is no image at the location but actually there is.

[StuartLittlefair]

Odd. It usually works fine for me. Which sky position, and are there any error messages or warnings in the terminal?

[skycattmll]

Hi @StuartLittlefair

this is the error message before...
2024-01-25 14:05:05,409 | E | finders.py:606 (_load_image) | Failed to download sky image: HTTP Error 404: Not Found 2024-01-25 14:05:07,014 | I | panstarrs.py:110 (search) | Querying catalog: PS1 2024-01-25 14:05:08,840 | E | finders.py:606 (_load_image) | Failed to download sky image: HTTP Error 400: bad request

But now it works fine after i restart the programme...., maybe i really did something wrong.... this was also the reason that i reinstalled the program, and then encountered the error and then raised the question here hahahaha.

Anyway, thank you for your support again :)