flake fix

bilby/gw/__init__.py

@@ -47,7 +47,7 @@ def set_cosmology(cosmology=None):
         elif isinstance(cosmology, cosmo.FLRW):
             cosmology = cosmology
         elif isinstance(cosmology, str):
-            cosmology = eval('cosmo.' + cosmology)
+            cosmology = cosmo.__dict__[cosmology]
         elif isinstance(cosmology, dict):
             if 'Ode0' in cosmology.keys():
                 if 'w0' in cosmology.keys():

bilby/gw/prior.py

@@ -41,9 +41,9 @@ class UniformComovingVolume(FromFile):
         if cosmology is None:
             cosmology = COSMOLOGY[0]
         elif isinstance(cosmology, str):
-            cosmology = eval('cosmo.' + cosmology)
+            cosmology = cosmo.__dict__[cosmology]
         if isinstance(unit, str):
-            unit = eval('units.' + unit)
+            unit = units.__dict__[unit]
         if minimum == 0:
             z_min = 0
         else: