Summary
We install both NumPy -pre-version (1.26) and 2.0, but still build MPL with 1.25:
Install Python dependencies:
Collecting numpy
Obtaining dependency information for numpy from https://files.pythonhosted.org/packages/f9/86/7b6d8e66fa9c2138516b33f6dab9854eae0736c5ab89205398c4622ed37f/numpy-1.26.0rc1-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl.metadata
Downloading numpy-1.26.0rc1-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl.metadata (58 kB)
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 58.5/58.5 kB 19.2 MB/s eta 0:00:00
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Downloading numpy-1.26.0rc1-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (18.2 MB)
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 18.2/18.2 MB 98.3 MB/s eta 0:00:00
Install the nightly dependencies
Collecting numpy
Downloading https://pypi.anaconda.org/scientific-python-nightly-wheels/simple/numpy/2.0.0.dev0/numpy-2.0.0.dev0-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (18.3 MB)
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 18.3/18.3 MB 14.8 MB/s eta 0:00:00
Install Matplotlib
Collecting numpy>=1.25
Obtaining dependency information for numpy>=1.25 from https://files.pythonhosted.org/packages/69/1f/c95b1108a9972a52d7b1b63ed8ca704[66](https://github.com/matplotlib/matplotlib/actions/runs/6129239432/job/16637131200#step:11:67)b59b8c1811bd121f1e6[67](https://github.com/matplotlib/matplotlib/actions/runs/6129239432/job/16637131200#step:11:68)cc45d8/numpy-1.25.2-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl.metadata
Downloading numpy-1.25.2-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl.metadata (5.6 kB)
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Downloading numpy-1.25.2-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (18.3 MB)
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 18.3/18.3 MB 107.1 MB/s eta 0:00:00
Proposed fix
Wouldn't it make sense to also use one of the upcoming versions during installation?
Summary
We install both NumPy -pre-version (1.26) and 2.0, but still build MPL with 1.25:
Install Python dependencies:
Install the nightly dependencies
Install Matplotlib
Proposed fix
Wouldn't it make sense to also use one of the upcoming versions during installation?