sncosmo tries downloading filter data from url when the data is already in the `data/bandapasses` directory

[bking-astro]

Hello,

I am working on a secure cluster that blocks data transfer unless it is authorized by the user. Recently I tried using sncosmo in a package called nmma and I get the error posted below. I tried circumventing this issue by manually including the bandpass data where my sncosmo installation lives. However it looks like sncosmo decides to look for the data via the url anyways. Is there I way I can tell sncosmo to look for the other filters located in /usr/projects/nsmergers/nmma_0p2p0/lib/python3.11/site-packages/sncosmo/data/bandpasses and ignore the call outside the cluster?

I haven't had this issue before but I did just recreate a conda environment which includes installing the newest sncosmo. Is this a recent addition and my issue could be resolved by reverting to an older version?

Traceback (most recent call last):
  File "/lustre/scratch5/.mdt0/bking/nmma/tools/generate_ztf_detectable.py", line 54, in <module>
    lightcurve_file = generate_lightcurve(model=model, injection_path=injection_file, outDir=outdir)
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/lustre/scratch5/.mdt0/bking/nmma/tools/lightcurves.py", line 84, in generate_lightcurve
    create_lightcurves.main(args)
  File "/usr/projects/nsmergers/nmma_0p2p0/lib/python3.11/site-packages/nmma/em/create_lightcurves.py", line 340, in main
    data = create_light_curve_data(
           ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/projects/nsmergers/nmma_0p2p0/lib/python3.11/site-packages/nmma/em/injection.py", line 123, in create_light_curve_data
    lbol, mag = light_curve_model.generate_lightcurve(
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/projects/nsmergers/nmma_0p2p0/lib/python3.11/site-packages/nmma/em/model.py", line 371, in generate_lightcurve
    _, lambdas = utils.get_default_filts_lambdas(filters=filts)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/projects/nsmergers/nmma_0p2p0/lib/python3.11/site-packages/nmma/em/utils.py", line 338, in get_default_filts_lambdas
    bandpass = sncosmo.get_bandpass(val["name"])
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/projects/nsmergers/nmma_0p2p0/lib/python3.11/site-packages/sncosmo/bandpasses.py", line 27, in get_bandpass
    return _BANDPASSES.retrieve(name)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/projects/nsmergers/nmma_0p2p0/lib/python3.11/site-packages/sncosmo/_registry.py", line 160, in retrieve
    self._instances[key] = func(*args, name=name)
                           ^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/projects/nsmergers/nmma_0p2p0/lib/python3.11/site-packages/sncosmo/builtins.py", line 75, in load_bandpass_remote_aa
    abspath = DATADIR.abspath(relpath)
              ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/projects/nsmergers/nmma_0p2p0/lib/python3.11/site-packages/sncosmo/utils.py", line 464, in abspath
    url = self._get_url(relpath)
          ^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/projects/nsmergers/nmma_0p2p0/lib/python3.11/site-packages/sncosmo/utils.py", line 434, in _get_url
    self._fetch_redirects()
  File "/usr/projects/nsmergers/nmma_0p2p0/lib/python3.11/site-packages/sncosmo/utils.py", line 427, in _fetch_redirects
    f = urlopen(self._remote_root + "redirects.json")
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/projects/nsmergers/nmma_0p2p0/lib/python3.11/urllib/request.py", line 216, in urlopen
    return opener.open(url, data, timeout)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/projects/nsmergers/nmma_0p2p0/lib/python3.11/urllib/request.py", line 519, in open
    response = self._open(req, data)
               ^^^^^^^^^^^^^^^^^^^^^
  File "/usr/projects/nsmergers/nmma_0p2p0/lib/python3.11/urllib/request.py", line 536, in _open
    result = self._call_chain(self.handle_open, protocol, protocol +
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/projects/nsmergers/nmma_0p2p0/lib/python3.11/urllib/request.py", line 496, in _call_chain
    result = func(*args)
             ^^^^^^^^^^^
  File "/usr/projects/nsmergers/nmma_0p2p0/lib/python3.11/urllib/request.py", line 1391, in https_open
    return self.do_open(http.client.HTTPSConnection, req,
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/projects/nsmergers/nmma_0p2p0/lib/python3.11/urllib/request.py", line 1351, in do_open
    raise URLError(err)
urllib.error.URLError: <urlopen error Tunnel connection failed: 403 Forbidden>