Fix from database column in dataframe to align with first item of `…

…from key`.

setup.py

@@ -32,7 +32,7 @@ def package_files(directory):
 
 setup(
     name="unfold",
-    version="1.2.0",
+    version="1.2.1",
     python_requires=">=3.10",
     packages=packages,
     author="Romain Sacchi <romain.sacchi@psi.ch>",

unfold/__init__.py

@@ -1,5 +1,5 @@
 __all__ = ("Unfold", "Fold")
-__version__ = (1, 2, 0)
+__version__ = (1, 2, 1)
 
 
 from .fold import Fold

unfold/unfold.py

@@ -1197,9 +1197,13 @@ def format_superstructure_dataframe(self) -> None:
             self.name or self.package.descriptor["name"]
         )
 
+        # "from database" equals first item in "from key"
         self.scenario_df.loc[
             (self.scenario_df["flow type"] == "biosphere"), "from database"
-        ] = "biosphere3"
+        ] = self.scenario_df.loc[
+            (self.scenario_df["flow type"] == "biosphere"), "from key"
+        ].apply(lambda x: x[0] if x is not None else None)
+
         self.scenario_df = self.scenario_df[
             [
                 "from activity name",