Finally got eCAL to build, including all dependencies.

package/package_info.py

@@ -1,7 +1,7 @@
 # (c) 2025 by Stephan Menzel
 # Licensed under the Apache License, Version 2.0.
 # See attached file LICENSE for full details
-
+from typing import Self
 import json
 from pathlib import Path
 
@@ -58,6 +58,12 @@ class PackageInfo:
             self.license_name = pckdict["license_name"]
         self.license_url = pckdict["license_url"]
 
+    def dependency(self, package_name: str) -> Self:
+        """Give the path underneath which the package, according to its version, is installed"""
+        if package_name not in self.dependencies:
+            raise DependencyInfoError(f"Cannot find dependency {package_name} in {self.name}.")
+        return self.dependencies[package_name]
+
     def dependency_path(self, package_name: str) -> Path:
         """Give the path underneath which the package, according to its version, is installed"""
         if package_name not in self.dependencies: