Replace clik with clipy for Planck likelihoods and deprecation of Planck 2025 -- Duplicate of #427 (#444)

Co-authored-by: Antony Lewis <[email protected]>

Author: JesusTorrado

.github/workflows/tests.yml

@@ -5,7 +5,7 @@ name: Cobaya Tests
 on: [push, pull_request]
 
 env:
-  COBAYA_INSTALL_SKIP_BASE: planck_2015,CamSpec2021,2018_highl_CamSpec,unbinned,keck
+  COBAYA_INSTALL_SKIP_BASE: CamSpec2021,2018_highl_CamSpec,unbinned,keck
   COBAYA_PACKAGES_PATH: ../packages
 
 jobs:

CHANGELOG.md

@@ -8,6 +8,11 @@
 - Documentation can now be built as markdown for LLM context. Flat context file provided.
 - Periodic sampled parameters implemented (for now fully supported by MCMC only), as well as tagging of derived parameters as periodic for analysis with GetDist.
 
+### Cosmology
+
+- Planck `clik`-based likelihoods now use the new `clipy` Python implementation
+- Planck 2015 likelihoods deprecated
+
 ## 3.5.7 - 2025-03-31
 
 ### General

cobaya/cosmo_input/input_database.py

@@ -1148,8 +1148,7 @@
 install_tests = deepcopy(install_basic)
 install_tests["likelihood"].update(
     {
-        "planck_2015_lowl": None,
-        "planck_2018_highl_plik.TT_unbinned": None,
+        "planck_2018_highl_plik.TT": None,
         "planck_2018_highl_plik.TT_lite_native": None,
         "planck_2018_highl_CamSpec.TT": None,
         "planck_2018_highl_CamSpec2021.TT": None,

cobaya/install.py

@@ -198,6 +198,7 @@ def install(*infos, **kwargs):
     unknown_components = []  # could not be identified
     failed_components = []  # general errors
     obsolete_components = []  # older or unknown version already installed
+    incompatible_components = []  # not compatible with current OS
     skip_keywords_arg = set(kwargs.get("skip") or [])
     # NB: if passed with quotes as `--skip "a b"`, it's interpreted as a single key
     skip_keywords_arg = set(chain(*[word.split() for word in skip_keywords_arg]))
@@ -304,10 +305,10 @@ def _imported_class():
                 name_w_kind = imported_class.get_kind() + ":" + component
             is_compatible = getattr(imported_class, "is_compatible", lambda: True)()
             if not is_compatible:
-                logger.error(
+                logger.info(
                     f"Skipping '{name_w_kind}' because it is not compatible with your OS."
                 )
-                failed_components += [name_w_kind]
+                incompatible_components += [name_w_kind]
                 continue
             logger.info("Checking if dependencies have already been installed...")
             is_installed = getattr(imported_class, "is_installed", None)
@@ -466,6 +467,12 @@ def _imported_class():
             ),
             bullet + bullet.join(obsolete_components),
         )
+    if incompatible_components:
+        logger.warning(
+            "The following components were skipped because they are not compatible "
+            "with your OS: %s",
+            bullet + bullet.join(incompatible_components),
+        )
     if not unknown_components and not failed_components and not obsolete_components:
         logger.info(
             "All requested components' dependencies correctly installed at "

cobaya/likelihoods/base_classes/__init__.py

@@ -7,7 +7,6 @@
 from .InstallableLikelihood import InstallableLikelihood as InstallableLikelihood
 from .Mb import Mb as Mb
 from .planck_2018_CamSpec_python import Planck2018CamSpecPython as Planck2018CamSpecPython
-from .planck_clik import Planck2015Clik as Planck2015Clik
 from .planck_clik import Planck2018Clik as Planck2018Clik
 from .planck_clik import PlanckClik as PlanckClik
 from .planck_pliklite import PlanckPlikLite as PlanckPlikLite