use nnpdf data package directly

pyproject.toml

@@ -35,8 +35,7 @@ pandas = "^2.1"
 rich = "^12.5.1"
 click = "^8.0.4"
 tomli = "^2.0.1"
-nnpdf = { git = "https://github.com/NNPDF/nnpdf", optional = true}
-lhapdf-management = { version = "^0.5", optional = true }
+nnpdf-data = { version = "*", optional = true}
 
 [tool.poetry.group.docs]
 optional = true
@@ -51,8 +50,7 @@ setuptools = "^69.0"
 optional = true
 
 [tool.poetry.group.test.dependencies]
-lhapdf-management = { version = "^0.5" }
-nnpdf = { git = "https://github.com/NNPDF/nnpdf" }
+nnpdf-data = "*"
 pytest = "^7.1.3"
 pytest-cov = "^4.0.0"
 pytest-env = "^0.6.2"
@@ -65,7 +63,7 @@ ipython = "^8.0"
 
 [tool.poetry.extras]
 docs = ["sphinx", "sphinx-rtd-theme", "sphinxcontrib-bibtex"]
-nnpdf = ["nnpdf", "lhapdf-management"]
+nnpdf = ["nnpdf-data"]
 
 [tool.poetry.scripts]
 pineko = "pineko:command"

src/pineko/utils.py

@@ -29,14 +29,17 @@ def read_grids_from_nnpdf(dataset_name, configs=None):
         return None
 
     # Import NNPDF only if we really want it!
-    from nnpdf_data import legacy_to_new_map
-    from validphys.commondataparser import EXT
-    from validphys.loader import Loader
+    from nnpdf_data import legacy_to_new_map, path_commondata
+    from nnpdf_data.commondataparser import EXT, parse_new_metadata
 
     # We only need the metadata, so this should be enough
+    # pass it through the legacy_to_new in case this is an old name
     dataset_name, variant = legacy_to_new_map(dataset_name)
-    cd = Loader().check_commondata(dataset_name, variant=variant)
-    fks = cd.metadata.theory.FK_tables
+
+    setname, observable = dataset_name.rsplit("_", 1)
+    metadata_file = path_commondata / setname / "metadata.yaml"
+    metadata = parse_new_metadata(metadata_file, observable, variant=variant)
+    fks = metadata.theory.FK_tables
     # Return it flat
     return [f"{i}.{EXT}" for operand in fks for i in operand]