Frequently Asked Questions

The following are some common questions or issues.

ATNF reference error

If you see an error that looks similar to this:

Traceback (most recent call last):
File "sifit.py", line 10, in <module>
    cat_list = collect_catalogue_fluxes()
File "/pawsey/mwa/software/python3/pulsar_spectra/master/lib/python3.8/site-packages/pulsar_spectra/catalogue.py", line 267, in collect_catalogue_fluxes
    antf_dict = all_flux_from_atnf(query=query)
File "/pawsey/mwa/software/python3/pulsar_spectra/master/lib/python3.8/site-packages/pulsar_spectra/catalogue.py", line 176, in all_flux_from_atnf
    freq_all, flux_all, flux_err_all, references = flux_from_atnf(jname, query=query, ref_dict=ref_dict)
File "/pawsey/mwa/software/python3/pulsar_spectra/master/lib/python3.8/site-packages/pulsar_spectra/catalogue.py", line 140, in flux_from_atnf
    ref = convert_antf_ref(ref_code, ref_dict=ref_dict)
File "/pawsey/mwa/software/python3/pulsar_spectra/master/lib/python3.8/site-packages/pulsar_spectra/catalogue.py", line 50, in convert_antf_ref
    ref_string_list = ref_dict[ref_code].split()
KeyError: 'bgt+21'

The KeyError is likely due to a change in the in psrcat.db file that psrqpy has not updated in their cache. To fix it run the following command

import psrqpy
psrqpy.get_references(updaterefcache=True)
psrqpy.QueryATNF(checkupdate=True)

Then try your script again.