Error in multiple_lens_injection notebook

[alxogm]

Hi @nkhadka21 when running notebooks/alxogm/slsim/notebooks/multiple_lens_injection.ipynb I get the following error in cell 6.

any idea why it could be?

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
Cell In[6], line 9
      1 ## specify pixel number and pixel scale of the images. Here we have chosen 64 and 0.2 respectively.
      2 ## We should choose pixel scale = 0.2 to match the pixel scale scale of DC2 data.
      3 ## For this function one lens_cut. If not provided, default option is None.
      4 lens_cut = {
      5     "min_image_separation": 0.8,
      6     "max_image_separation": 10,
      7     "mag_arc_limit": {"g": 23, "r": 23, "i": 23},
      8 }
----> 9 injected_lens_catalog = lsst_science_pipeline.multiple_lens_injection(
     10     gg_lens_pop, 64, 0.2, ra, dec, butler, lens_cut=lens_cut, flux=None
     11 )

File ~/notebooks/alxogm/slsim/slsim/lsst_science_pipeline.py:308, in multiple_lens_injection(lens_pop, num_pix, delta_pix, butler, ra, dec, lens_cut, flux)
    299 injected_images = []
    300 for i in range(len(ra)):
    301     injected_images.append(
    302         lens_inejection(
    303             lens_pop,
    304             num_pix,
    305             delta_pix,
    306             butler,
    307             ra[i],
--> 308             dec[i],
    309             lens_cut=None,
    310             flux=None,
    311         )
    312     )
    313 injected_image_catalog = vstack(injected_images)
    314 return injected_image_catalog

TypeError: 'Butler' object is not subscriptable

[nkhadka21]

Hi @alxogm, thank you very much for pointing out this. It is just a miss place of a butler object. Please correct as following:
injected_lens_catalog = lsst_science_pipeline.multiple_lens_injection(
10 gg_lens_pop, 64, 0.2, butler, ra, dec, lens_cut=lens_cut, flux=None
11 )