Cannot access citations for pip installed code

[znasipak]

Running

from few.waveform import GenerateEMRIWaveform
from few.waveform import FastKerrEccentricEquatorialFlux

waveform_generator = GenerateEMRIWaveform(FastKerrEccentricEquatorialFlux)
print(waveform_generator.waveform_generator.citation())

produces the error

FileNotFoundError: [Errno 2] No such file or directory: mypath/to/conda/env/few-env-pip/lib/python3.11/site-packages/few/CITATION.cff

[mpigou]

Since your path mentions conda, could you confirm whether FEW was pip-installed, or conda-installed?

Have you listed fastemriwaveforms as a conda dependency when building the environment first? or have you first created the environnement, and then performed a pip install fastemriwaveforms in it?

Since the packaging process is not one-to-one identical between PyPI and conda, I need to know which process to check.

Could you also specify your architecture (linux/macos? amd64/arm64?), I guess the issue is not platform dependent but we never know...

Thanks!

[znasipak]

This was pip installed in a premade conda environment. This was done on macos arm64. However, I also tried conda installing fastemriwaveforms when building a new environment with

conda create -n few-citation-err-env fastemriwaveforms python=3.12

This led to the same error on the same machine as before.

[Abhi210]

I installed the latest version of FastEMRIWaveform with environment built using uv+pip. I did not get this issue. Here is my program output:

from few.waveform import GenerateEMRIWaveform, FastKerrEccentricEquatorialFlux
waveform_generator = GenerateEMRIWaveform(FastKerrEccentricEquatorialFlux)

print(waveform_generator.waveform_generator.citation())

@article{Chapman-Bird:2025xtd,
  author        = "Chapman-Bird, Christian E. A. and Speri, Lorenzo and Nazipak, Zachary and Burke, Ollie and Katz, Michael L. and Santini, Alessandro and Kejriwal, Shubham and Lynch, Philip and Mathews, Josh and Khalvati, Hassan and Thompson, Jonathan E. and Isoyama, Soichiro and Hughes, Scott A. and Warburton, Niels and Chua, Alvin J. K. and Pigou, Maxime",
  title         = "{The Fast and the Frame-Dragging: Efficient waveforms for asymmetric-mass eccentric equatorial inspirals into rapidly-spinning black holes}",
  year          = "2025",
  month         = "6",
  doi           = "10.48550/arXiv.2506.09470",
  archivePrefix = "arXiv",
  eprint        = "2506.09470",
  primaryClass  = "gr-qc"
}

@article{Chua:2020stf,
  author        = "Chua, Alvin J. K. and Katz, Michael L. and Warburton, Niels and Hugues, Scott A.",
  title         = "{Rapid Generation of Fully Relativistic Extreme-Mass-Ratio-Inspiral Waveform Templates for LISA Data Analysis}",
  journal       = "Physical Review Letters",
  year          = "2021",
  month         = "2",
  number        = "5",
  publisher     = "American Physical Society",
  pages         = "51102--51108",
  issn          = "1079-7114",
  doi           = "10.1103/PhysRevLett.126.051102",
  archivePrefix = "arXiv",
  eprint        = "2008.06071",
  primaryClass  = "gr-qc"
}

@article{Katz:2021yft,
  author        = "Katz, Michael L. and Chua, Alvin J. K. and Speri, Lorenzo and Warburton, Niels and Hugues, Scott A.",
  title         = "{Fast extreme-mass-ratio-inspiral waveforms: New tools for millihertz gravitational-wave data analysis}",
  journal       = "Physical Review D",
  year          = "2021",
  month         = "9",
  number        = "6",
  publisher     = "American Physical Society",
  pages         = "64047--64072",
  issn          = "2470-0029",
  doi           = "10.1103/physrevd.104.064047",
  archivePrefix = "arXiv",
  eprint        = "2104.04582",
  primaryClass  = "gr-qc"
}

@software{FastEMRIWaveforms,
  author     = "Katz, Michael and Speri, Lorenzo and Chapman-Bird, Christian and Chua, Alvin J. K. and Warburton, Niels and Hughes, Scott",
  title      = "{FastEMRIWaveforms}",
  license    = "MIT",
  url        = "https://bhptoolkit.org/FastEMRIWaveforms/html/index.html",
  repository = "https://zenodo.org/records/3969004",
  doi        = "10.5281/zenodo.3969004"
}

I guess this could be the conda issue. Tested on Ubuntu 25.04.

[znasipak]

Maybe it is a problem with macos distributions?

[znasipak]

@znasipak Should revisit this problem