Duncan Macleod

Attempting to create a GWpy colourbar for an `Axes` attached directly to a `matplotlib.figure.Figure` (rather than a `gwpy.plot.Plot`) fails in a fairly incomprehensible way: ```python >>> import gwpy >>> import...

Miscellaneous documentation fixes

1

This PR address some (non-fatal) errors and warnings emitted by sphinx when building the documentation.

Add Python 3.12 conda CI job

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This PR extends #1714 by adding a Conda-based Python 3.12 CI build/test job.

Use conda with libmamba solver in CI

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This PR patches the `conda` CI workflow to use `conda` instead of `mamba`, but with the `libmamba` solver, which means its basically the same, but without increased risk of CLI...

At the latest Virgo computing (VDAS) meeting, #1550 was discussed. Currently users can manually specify `format="gwf.framel"` to set the default frame library, but it might nice to be able to...

This PR refactors `TimeSeries.resample` to make it simpler internally, and to better track scipy's default behaviours, and improves the tests to match.

The test suite is emitting the following warnings relating to the use of the deprecated `nyq` keyword to a few `scipy.signal` filter design functions: ``` ../../../.conda/envs/gwpy-nightly-3.9/lib/python3.9/site-packages/gwpy/signal/tests/test_filter_design.py:52 ../../../.conda/envs/gwpy-nightly-3.9/lib/python3.9/site-packages/gwpy/signal/tests/test_filter_design.py:52 ../../../.conda/envs/gwpy-nightly-3.9/lib/python3.9/site-packages/gwpy/signal/tests/test_filter_design.py:52 ../../../.conda/envs/gwpy-nightly-3.9/lib/python3.9/site-packages/gwpy/signal/tests/test_filter_design.py:52 /home/duncan.macleod/.conda/envs/gwpy-nightly-3.9/lib/python3.9/site-packages/gwpy/signal/tests/test_filter_design.py:52:...

Replace GWpy's bilinear_zpk function with scipy's

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GWpy has an implementation of a bilinear transform for ZPK filter coefficients. This was written before [`scipy.signal.bilinear_zpk`](https://docs.scipy.org/doc/scipy-1.1.0/reference/generated/scipy.signal.bilinear_zpk.html) was available, but should probably now just be dropped (or hollowed out with...

Implement threaded downloads for fetch_open_data

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The `TimeSeries.fetch_open_data()` method discovers a series of URLs to download from gwosc.org and then downloads them in serial, meaning examples like the `open-data-spectrogram.py` example can take a _long_ time. It...

I'm concerned about the default `unit='Hz'` for `TimeSeries.zpk()`, which doesn't work for the 'default' use case of something like ```python zpk = filter_design.lowpass(...) data.zpk(zpk) ``` In the above case, the...