add to spack.yml. Docstring.

packages/py-lfpy/package.py

 from spack import *
 
 
-class LFPy(Package):
+class PyLFPy(PythonPackage):
+    """A Python package for calculating extracellular electric and magnetic
+    signals of neural activity from multicompartment neuron models.
+    """
+
     homepage = 'https://LFPy.readthedocs.io'
     pypi = "LFPy/LFPy-2.2.3.tar.gz"
     git = 'https://github.com/LFPy/LFPy.git'
-    list_url = 'https://pypi.org/simple/LFPy/'
 
     maintainers = ['espenhgn']
 

spack.yaml

@@ -29,6 +29,7 @@ spack:
     - tvb-framework ^binutils+ld+gold %gcc@10.3.0
     - meta-brainscales %gcc@10.3.0
     - pynn-brainscales@2.0-rc1 ^log4cxx@0.10.0 ^googletest@1.11.0:+gmock %gcc@10.3.0
+    - py-lfpy@2.2.3 %gcc@10.3.0
     # demo for codejam12
     - funniest1022 %gcc@10.3.0
     # NRP