Fix converting of editable package

src/npe2/__main__.py

@@ -0,0 +1,4 @@
+from npe2.cli import main
+
+if __name__ == "__main__":
+    main()

src/npe2/_inspection/_from_npe1.py

@@ -517,7 +517,13 @@ def get_top_module_path(package_name, top_module: Optional[str] = None) -> Path:
         top_module = top_mods[0]
 
     path = Path(dist.locate_file(top_module))
-    assert path.is_dir()
+    if not path.is_dir():
+        for f_path in dist.files:
+            if "__editable__" in f_path.name:
+                path = Path(f_path.read_text().strip()) / top_module
+                break
+
+    assert path.is_dir(), f"Could not find top level module {top_module} using {path}"
     return path