diff --git a/poetry/installation/executor.py b/poetry/installation/executor.py
index 7267a3fd63c..f1fa9e36ff4 100644
--- a/poetry/installation/executor.py
+++ b/poetry/installation/executor.py
@@ -672,7 +672,9 @@ def _download_link(self, operation: Union[Install, Update], link: Link) -> Link:
                 archive = self._chef.prepare(archive)
 
         if package.files:
-            archive_path = url_to_path(archive.url) if isinstance(archive, Link) else archive
+            archive_path = (
+                url_to_path(archive.url) if isinstance(archive, Link) else archive
+            )
             archive_hash = (
                 "sha256:"
                 + FileDependency(
diff --git a/poetry/utils/pip.py b/poetry/utils/pip.py
index b503e75c82e..3c56a295d02 100644
--- a/poetry/utils/pip.py
+++ b/poetry/utils/pip.py
@@ -62,7 +62,9 @@ def pip_install(
         raise PoetryException(f"Failed to install {path.as_posix()}") from e
 
 
-def pip_editable_install(directory: Path, environment: Env) -> Union[int, str]:
+def pip_editable_install(
+    directory: Union[Path, Link], environment: Env
+) -> Union[int, str]:
     return pip_install(
         path=directory, environment=environment, editable=True, deps=False, upgrade=True
     )