fix(py-elephant): CUDA support

packages/py-elephant/package.py

@@ -6,7 +6,7 @@
 from spack.package import *
 
 
-class PyElephant(PythonPackage):
+class PyElephant(PythonPackage, CudaPackage):
     """Elephant is a package for analysis of electrophysiology data in Python"""
 
     homepage = "http://neuralensemble.org/elephant/"
@@ -71,6 +71,7 @@ class PyElephant(PythonPackage):
     depends_on("py-scipy@1.5.4:", type=("build", "run"), when="@0.6.4:")
     depends_on("py-six@1.10.0:", type=("build", "run"), when="@0.6.4:")
     depends_on("py-tqdm", type=("build", "run"), when="@0.6.4:")
+    depends_on("py-pycuda", type=("build", "run"), when="@0.10.0:+cuda")
     depends_on("py-pytest", type=("test"), when="@0.6.4:")
     depends_on("py-statsmodels@0.12.1:", type=("test"),when="@0.6.4:")