nptyping's numpy<2 constraint breaks pynrrd when installed with numpy>2

[eleftherioszisis]

nptyping has an upper constraint on the numpy version:
https://github.com/ramonhagenaars/nptyping/blob/785cd07e65f992f47256398fd01f62067928d29c/dependencies/requirements.txt#L2

which results in picking an old version of nptyping that doesn't have that constraint when installed with numpy>=2.0.0

pip install 'numpy>=2.0' 'pynrrd>=1.0.0'
Collecting numpy>=2.0
  Using cached numpy-2.1.1-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (16.3 MB)
Collecting pynrrd>=1.0.0
  Downloading pynrrd-1.0.0-py2.py3-none-any.whl (19 kB)
Collecting nptyping
  Downloading nptyping-2.5.0-py3-none-any.whl (37 kB)
Collecting typing-extensions
  Downloading typing_extensions-4.12.2-py3-none-any.whl (37 kB)
Collecting nptyping
  Downloading nptyping-2.4.1-py3-none-any.whl (36 kB)
  Downloading nptyping-2.4.0-py3-none-any.whl (35 kB)
  Downloading nptyping-2.3.1-py3-none-any.whl (32 kB)
  Downloading nptyping-2.3.0-py3-none-any.whl (32 kB)
  Downloading nptyping-2.2.0-py3-none-any.whl (31 kB)
  Downloading nptyping-2.1.3-py3-none-any.whl (31 kB)
  Downloading nptyping-2.1.2-py3-none-any.whl (31 kB)
  Downloading nptyping-2.1.1-py3-none-any.whl (30 kB)
  Downloading nptyping-2.1.0-py3-none-any.whl (29 kB)
  Downloading nptyping-2.0.1-py3-none-any.whl (19 kB)
Installing collected packages: typing-extensions, numpy, nptyping, pynrrd
Successfully installed nptyping-2.0.1 numpy-2.1.1 pynrrd-1.0.0 typing-extensions-4.12.2

This is however an issue because of deprecated types present in that old version of nptyping:

python -c "import nrrd"
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/home/eleftherios/Projects/v310-test/lib/python3.10/site-packages/nrrd/__init__.py", line 2, in <module>
    from nrrd.formatters import *
  File "/home/eleftherios/Projects/v310-test/lib/python3.10/site-packages/nrrd/formatters.py", line 3, in <module>
    import nptyping as npt
  File "/home/eleftherios/Projects/v310-test/lib/python3.10/site-packages/nptyping/__init__.py", line 30, in <module>
    from nptyping.ndarray import NDArray
  File "/home/eleftherios/Projects/v310-test/lib/python3.10/site-packages/nptyping/ndarray.py", line 32, in <module>
    from nptyping.shape_expression import (
  File "/home/eleftherios/Projects/v310-test/lib/python3.10/site-packages/nptyping/shape_expression.py", line 35, in <module>
    from nptyping.typing_ import Literal
  File "/home/eleftherios/Projects/v310-test/lib/python3.10/site-packages/nptyping/typing_.py", line 66, in <module>
    Bool8: TypeAlias = np.bool8
  File "/home/eleftherios/Projects/v310-test/lib/python3.10/site-packages/numpy/__init__.py", line 414, in __getattr__
    raise AttributeError("module {!r} has no attribute "
AttributeError: module 'numpy' has no attribute 'bool8'. Did you mean: 'bool'?

Is it worth considering removing nptyping as a dependency?

[addisonElliott]

Is it worth considering removing nptyping as a dependency?

I think it's worth considering. It's not used very much in the codebase, so I think we could live with converting to numpy.typing.

If we do that, probably a new major revision and upgrading the minimum numpy version required.

If I get some time, I'll play around with migrating over.

[eleftherioszisis]

@addisonElliott I took a stab at it with #154. Please let me know if that will work.