Internals¶

Overview¶

This file contains notes related to the internal workings of PypeIt.

Objects¶

filesort¶

This dict whose keys are the various Frame Type used in PypeIt and the items are arrays of the indices of the frames with that type.

Generated by arsort.sort_data()

setup_dict¶

This highly nested dict organizes the various setups used in the input set of data files. The top-level keys, which define the setup, are simple labels: A, B, C, …

The next set of keys are:

‘–’: which holds a dict defining properties of the setup (e.g. dichroic)
‘01’: a dict holding detector specific info (e.g. binning)
‘aa’, ‘ab’, ‘ac’, etc: are dict’s containing lists of filenames as a function of frame type

Here is an example (as output to the .setups file):

A:
  --:
    dichroic: d55
    disperser: {angle: None, name: 600/4310}
    slit: {decker: 0.5 arcsec, slitlen: None, slitwid: None}
  '01': {binning: None, det: 1, namp: 2}

Usually generated by arsetup.instr_setup()

setup_ID¶

The setup_ID is then commbines the keys of the setup_dict, e.g. A_01_aa

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