solver: print more information about packages with source_type when s…

…olving fails to avoid weird messages like "Because myapp depends on both demo (1.2.3) and demo (1.2.3), version solving failed."

src/poetry/mixology/incompatibility.py

@@ -438,6 +438,8 @@ def _terse(self, term: Term, allow_every: bool = False) -> str:
             pretty_name: str = term.dependency.pretty_name
             return pretty_name
 
+        if term.dependency.source_type:
+            return str(term.dependency)
         return f"{term.dependency.pretty_name} ({term.dependency.pretty_constraint})"
 
     def _single_term_where(self, callable: Callable[[Term], bool]) -> Term | None:

tests/mixology/version_solver/test_unsolvable.py

@@ -1,5 +1,6 @@
 from __future__ import annotations
 
+from pathlib import Path
 from typing import TYPE_CHECKING
 
 from poetry.factory import Factory
@@ -92,6 +93,25 @@ def test_disjoint_root_constraints(
     check_solver_result(root, provider, error=error)
 
 
+def test_disjoint_root_constraints_path_dependencies(
+    root: ProjectPackage, provider: Provider, repo: Repository
+):
+    provider.set_package_python_versions("^3.7")
+    fixtures = Path(__file__).parent.parent.parent / "fixtures"
+    project_dir = fixtures.joinpath("with_conditional_path_deps")
+    path1 = project_dir / "demo_one"
+    root.add_dependency(Factory.create_dependency("demo", {"path": path1}))
+    path2 = project_dir / "demo_two"
+    root.add_dependency(Factory.create_dependency("demo", {"path": path2}))
+
+    error = (
+        f"Because myapp depends on both demo (1.2.3 {path1.as_posix()}) "
+        f"and demo (1.2.3 {path2.as_posix()}), version solving failed."
+    )
+
+    check_solver_result(root, provider, error=error)
+
+
 def test_no_valid_solution(root: ProjectPackage, provider: Provider, repo: Repository):
     root.add_dependency(Factory.create_dependency("a", "*"))
     root.add_dependency(Factory.create_dependency("b", "*"))