remove scipy dependency

pyproject.toml

@@ -36,7 +36,6 @@ classifiers = [
 keywords = ["triangulation", "sphere", "interpolation", "mesh"]
 dependencies = [
     "numpy>=1.16.0",
-    "scipy>=1.0.0",
 ]
 
 [tool.setuptools]
@@ -52,7 +51,7 @@ packages = [
 # version = {attr = "stripy.__version__"}
 
 [project.optional-dependencies]
-dev = ["pip-tools", "pytest"]
+dev = ["pip-tools", "pytest", "scipy>=1.0.0"]
 
 [project.urls]
 Homepage = "https://github.com/underworldcode/stripy"

setup.py

@@ -108,7 +108,7 @@ def _minimal_ext_cmd(cmd):
           long_description  = long_description,
           long_description_content_type='text/markdown',
           ext_modules       = [ext1, ext2, ext3, ext4, ext5],
-          install_requires  = ['numpy>=1.16.0', 'scipy>=1.0.0'],
+          install_requires  = ['numpy>=1.16.0'],
           packages          = ['stripy'],
           package_data      = {'stripy': ['Notebooks/*ipynb', # Worked Examples is not currently used
                                           'Notebooks/CartesianTriangulations/*ipynb',

stripy/tests/test_0_imports.py

@@ -6,11 +6,6 @@ def test_numpy_import():
     import numpy
     return
 
-def test_scipy_import():
-    import scipy
-    print("\t\t You have scipy version {}".format(scipy.__version__))
-
-
 def test_stripy_modules():
     import stripy
     from stripy import documentation