fixed None comparison in cosmo (error in pytest); added pyccl package, finally working

Author: martinkilbinger

cs_util/cosmo.py

@@ -79,9 +79,9 @@ def sigma_crit(z_lens, z_source, cos, d_lens=None, d_source=None):
 
     a_lens = 1 / (1 + z_lens)
     a_source = 1 / (1 + z_source)
-    if not d_lens:
+    if d_lens is None:
         d_lens = cos.angular_diameter_distance(a_lens) * units.Mpc
-    if not d_source:
+    if d_source is None:
         d_source = cos.angular_diameter_distance(a_source) * units.Mpc
 
     d_lens_source = cos.angular_diameter_distance(a_lens, a_source) * units.Mpc

pyproject.toml

@@ -14,9 +14,9 @@ numpy = "^1.26.4"
 matplotlib = "^3.8.4"
 swig = "^4.2.1"
 scipy = "^1.13.0"
-# Install pyccl via pip
 vos = "^3.6.1"
 keyring = "^25.2.0"
+pyccl = "^3.0.2"
 
 [tool.poetry.dev-dependencies]
 pytest = "^6.2.5"